CN115786773B - Nickel-based corrosion-resistant alloy thin strip and preparation method thereof - Google Patents
Nickel-based corrosion-resistant alloy thin strip and preparation method thereof Download PDFInfo
- Publication number
- CN115786773B CN115786773B CN202211491264.2A CN202211491264A CN115786773B CN 115786773 B CN115786773 B CN 115786773B CN 202211491264 A CN202211491264 A CN 202211491264A CN 115786773 B CN115786773 B CN 115786773B
- Authority
- CN
- China
- Prior art keywords
- equal
- less
- percent
- nickel
- resistant alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 238000005260 corrosion Methods 0.000 title claims abstract description 109
- 230000007797 corrosion Effects 0.000 title claims abstract description 109
- 239000000956 alloy Substances 0.000 title claims abstract description 89
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 89
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000137 annealing Methods 0.000 claims abstract description 54
- 238000005097 cold rolling Methods 0.000 claims abstract description 49
- 238000005242 forging Methods 0.000 claims abstract description 48
- 238000004381 surface treatment Methods 0.000 claims abstract description 21
- 239000006104 solid solution Substances 0.000 claims abstract description 19
- 238000005098 hot rolling Methods 0.000 claims abstract description 17
- 238000003723 Smelting Methods 0.000 claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 9
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 63
- 238000000034 method Methods 0.000 claims description 51
- 238000001816 cooling Methods 0.000 claims description 23
- 238000004321 preservation Methods 0.000 claims description 23
- 238000002791 soaking Methods 0.000 claims description 20
- 238000000265 homogenisation Methods 0.000 claims description 18
- 230000003746 surface roughness Effects 0.000 claims description 13
- 238000005498 polishing Methods 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 16
- 239000000243 solution Substances 0.000 description 15
- 239000002994 raw material Substances 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 238000005266 casting Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000005554 pickling Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012611 container material Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Metal Rolling (AREA)
Abstract
The application relates to the technical field of nickel-based corrosion-resistant alloy, and particularly discloses a nickel-based corrosion-resistant alloy thin strip and a preparation method thereof. The nickel-based corrosion-resistant alloy thin strip comprises the following components: less than or equal to 0.008 percent of C, less than or equal to 0.002 percent of S, less than or equal to 0.010 percent of P, 21.0 to 25.0 percent of Cr, 14.5 to 17.5 percent of Mo, 1.2 to 2.0 percent of Cu, 0.10 to 0.50 percent of Al, less than or equal to 0.10 percent of Co, less than or equal to 1.00 percent of Fe, less than or equal to 0.05 percent of Si, less than or equal to 0.50 percent of Mn, less than or equal to 0.02 percent of Mg, less than or equal to 0.005 percent of O, less than or equal to 0.010 percent of N, and the balance of Ni; the preparation method of the nickel-based corrosion-resistant alloy thin strip comprises the following steps: smelting, homogenizing, hot forging, hot rolling, solid solution, surface treatment after solid solution, cold rolling and annealing. The nickel-based corrosion-resistant alloy thin strip has high surface quality, uniform fine grain structure, excellent room temperature tensile property and corrosion resistance.
Description
Technical Field
The application relates to the technical field of nickel-based corrosion-resistant alloy, in particular to a nickel-based corrosion-resistant alloy thin strip and a preparation method thereof.
Background
Nuclear power can produce a large amount of nuclear waste while providing energy, and improper treatment of nuclear waste can have serious consequences and even threaten the human living environment. Therefore, how to safely dispose of nuclear waste has become an important issue equivalent to nuclear safety. With the development of nuclear waste treatment technology, the working condition environment of the nuclear waste treatment container is more severe, so as to ensure that nuclear waste is not leaked, avoid environmental pollution, and put forward higher requirements on container materials: not only needs to have lower corrosion rate, but also has excellent mechanical property, good cold and hot processing performance and welding performance.
In order to adapt to increasingly severe use environments, a nickel-based corrosion-resistant alloy with high Cr, high Mo and Cu is generated, and the unique component characteristics enable the alloy to have excellent corrosion resistance in various complex medium environments such as sulfuric acid, hydrofluoric acid, nitric acid, dilute hydrochloric acid and the like, so that the nickel-based corrosion-resistant alloy becomes an ideal material for key components in a nuclear waste container. In recent years, nickel-based corrosion-resistant alloy sheet and strip, wire rod and pipe products have been widely used in the field of nuclear waste treatment. However, the structure, performance and surface quality of the nickel-base corrosion-resistant alloy thin strip produced at present are poor, and technical indexes and use requirements are difficult to meet.
Disclosure of Invention
In order to comprehensively improve the structure, performance and surface quality of the nickel-based corrosion-resistant alloy thin strip, the application provides the nickel-based corrosion-resistant alloy thin strip and a preparation method thereof.
The nickel-based corrosion-resistant alloy thin strip provided by the application adopts the following technical scheme:
a nickel-based corrosion resistant alloy thin strip comprising, in mass percent: less than or equal to 0.008 percent of C, less than or equal to 0.002 percent of S, less than or equal to 0.010 percent of P, 21.0 to 25.0 percent of Cr, 14.5 to 17.5 percent of Mo, 1.2 to 2.0 percent of Cu, 0.10 to 0.50 percent of Al, less than or equal to 0.10 percent of Co, less than or equal to 1.00 percent of Fe, less than or equal to 0.05 percent of Si, less than or equal to 0.50 percent of Mn, less than or equal to 0.02 percent of Mg, less than or equal to 0.005 percent of O, less than or equal to 0.010 percent of N, and the balance of Ni.
Preferably, the nickel-based corrosion resistant alloy thin strip comprises the following components in percentage by mass: c: 0.004-0.006%, S is less than or equal to 0.002%, P is less than or equal to 0.010%, cr: 23.0-24.0%, mo: 16.0-17.0%, cu: 1.5-1.7%, al: 0.3-0.4%, co less than or equal to 0.10%, fe less than or equal to 1.00%, si less than or equal to 0.05%, mn less than or equal to 0.50%, mg less than or equal to 0.02%, O less than or equal to 0.005%, N less than or equal to 0.010%, and the balance of Ni.
According to the method, the content of C, cr, mo, cu, al element in the nickel-based corrosion-resistant alloy thin strip is regulated, and the content of gas and impurity elements is strictly controlled, so that the nickel-based corrosion-resistant alloy thin strip can maintain good tissue performance in the manufacturing process.
Preferably, the thickness of the nickel-based corrosion-resistant alloy thin strip is 0.05-0.30 mm, and the width is 180-350 mm.
Further, the thickness of the corrosion-resistant alloy thin strip is 0.07-0.30 mm or 0.07-0.10 mm.
In a specific embodiment, the corrosion resistant alloy thin strip has a thickness of 0.07mm or 0.10mm.
In a specific embodiment, the thin strip of corrosion resistant alloy has a width of 200mm.
In a second aspect, the present application provides a method for preparing a thin strip of a nickel-based corrosion-resistant alloy, which adopts the following technical scheme:
the preparation method of the nickel-based corrosion-resistant alloy thin strip comprises the following steps: vacuum induction smelting, electroslag remelting, homogenization, hot forging, hot rolling, solid solution, surface treatment after solid solution and cold rolling;
the homogenization procedure is as follows: placing the electroslag ingot obtained by electroslag remelting into homogenizing equipment, and then treating by adopting a three-stage soaking mode; the three-stage soaking mode specifically comprises the following steps:
s1: the charging temperature is less than or equal to 600 ℃, then the temperature is increased to 950-1050 ℃ at the heating rate of less than or equal to 70 ℃/h, and the heat preservation time is 5-10 h;
s2: then heating to 1150-1170 ℃ at a heating rate of less than or equal to 40 ℃/h, and preserving heat, wherein the heat preserving time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 10h; when D is 120 to 240mm, t is 18h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 28h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 45h;
s3: then heating to 1180-1200 ℃ at a heating rate of less than or equal to 30 ℃/h, and preserving heat, wherein the heat preserving time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 25h; when D is 120 to 240mm, t is 35h; when D is more than 240 and less than or equal to 410mm, t is more than or equal to 45h; when D is more than 410 and less than or equal to 520mm, t is more than or equal to 75h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 135h.
In the application, the homogenization procedure adopts a three-stage soaking mode, and the ingot casting can achieve a sufficient homogenization effect through the three-stage soaking mode. The primary soaking stage can enable all parts of the cast ingot to reach the dissolution starting temperature of the precipitated phase; the second soaking stage can enable precipitated phases in the cast ingot to start to be dissolved in a large amount; the three-stage soaking stage can fully diffuse elements at high temperature, further eliminate casting structure segregation, improve component structure uniformity and facilitate the obtaining of good strong plastic matching and corrosion resistance of the finished strip product.
In the application, after the three-stage soaking mode treatment in the homogenization procedure, the furnace temperature is cooled to below 600 ℃ and discharged.
In a specific embodiment, the three-stage soaking mode specifically includes: the charging temperature is 500 ℃, then the temperature is increased to 1000 ℃ at the heating rate of 70 ℃/h, and the heat preservation time is 6h; then heating to 1160 ℃ at a heating rate of 30 ℃/h, and preserving heat for 28h; then heating to 1190 ℃ at a heating rate of 30 ℃/h, and preserving heat for 48h.
In a specific embodiment, the three-stage soaking mode specifically includes: the charging temperature is 500 ℃, then the temperature is increased to 1000 ℃ at the heating rate of 60 ℃/h, and the heat preservation time is 8h; then heating to 1170 ℃ at a heating rate of 30 ℃/h, and preserving heat for 30h; heating to 1190 ℃ at a heating rate of 30 ℃/h, and preserving heat for 50h
Preferably, the hot forging process includes cogging; the cogging adopts a two-stage soaking mode, and specifically comprises the following steps:
s1: the charging temperature is less than or equal to 600 ℃, the temperature is increased to 950-1050 ℃ at the heating rate of less than or equal to 70 ℃/h, and the heat preservation time is 2-5 h
S2: then heating to 1170-1190 ℃ at a heating rate of less than or equal to 30 ℃/h, and preserving heat, wherein the heat preservation time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 2h; when D is 120 to 240mm, t is more than or equal to 4h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 6h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 8h;
in the application, the cogging in the hot forging process adopts a two-stage soaking mode, and a small amount of precipitated phases formed in the cooling process of homogenization treatment of the cast ingot can be fully dissolved by the two-stage soaking mode, so that the high-homogeneity cast ingot is obtained, and the structural property uniformity of the nickel-based corrosion-resistant alloy thin strip is improved.
In a specific embodiment, the hot forging process is specifically: setting the charging temperature to 500 ℃, then raising the temperature to 1000 ℃ at a heating rate of 70 ℃/h, keeping the temperature for 3.5h, then raising the temperature to 1180 ℃ at a heating rate of 30 ℃/h, keeping the temperature for 6h, and immediately starting forging; wherein, the cogging deformation is 37.5%; the deformation amount of the plate blank after forging each time is 45%, the final forging temperature is 980 ℃, and the thickness of the blank after hot forging is 45mm.
In a specific embodiment, the hot forging process is specifically: setting the charging temperature to 500 ℃, then raising the temperature to 1000 ℃ at a heating rate of 70 ℃/h, preserving the heat for 4 hours, then raising the temperature to 1180 ℃ at a heating rate of 30 ℃/h, preserving the heat for 8 hours, and immediately starting forging; wherein, the cogging deformation is 40%; the deformation amount of the plate blank after forging each time is 40%, the final forging temperature is 980 ℃, and the thickness of the blank after hot forging is 50mm.
Preferably, the hot forging process further includes cogging slab forging; the cogging deformation is 35-40%, the deformation per firing time of slab forging is more than or equal to 35%, the final forging temperature is more than or equal to 960 ℃, and the thickness of the blank after hot forging is 40-80 mm.
Further, the surface treatment after hot forging is required to be performed after the hot forging, and the surface treatment after hot forging is used for removing the oxide skin on the surface of the blank after hot forging by a mechanical polishing method.
Preferably, in the hot rolling process, the heating temperature is 1180-1200 ℃, the finishing temperature is more than or equal to 960 ℃, the deformation amount per time is 35-60%, and the thickness of the hot rolled blank is 3-4 mm.
Preferably, the temperature in the solid solution process is 1150-1180 ℃, and the heat preservation time is 40-60 min.
In the present application, the cooling method used in the solid solution step is water cooling.
Preferably, the post-solid solution surface treatment process comprises: carrying out surface treatment on the plate blank obtained after solid solution by means of acid washing and mechanical grinding to obtain a strip blank; the surface roughness Ra value of the strip blank is less than or equal to 2.0 mu m.
In the present application, the surface treatment is performed on the slab after the solid solution treatment, and the surface roughness Ra value of the strip after the surface treatment is controlled to be 2.0 μm or less, so that the final nickel-based corrosion-resistant alloy thin strip can have excellent surface quality.
Preferably, in the cold rolling process, the deformation amount of each hot cold rolling is 30-65%;
annealing is carried out in a continuous annealing mode in the cold rolling process, and the continuous annealing temperature is 1130-1160 ℃;
the strip blank with the thickness of 1.5-2.0 mm obtained by cold rolling is subjected to continuous annealing, then intermediate annealing is further performed by adopting a trolley furnace or a box furnace, the intermediate annealing temperature is 1150-1180 ℃, the heat preservation time is 40-60 min, and the cooling mode is water cooling;
and (3) polishing the surface of the strip blank by adopting an abrasive belt after intermediate annealing for the strip blank with the thickness of 0.5-1.0 mm obtained by cold rolling.
In the present application, by controlling the deformation amount per firing and the continuous annealing temperature in the cold rolling process within the above ranges, it is possible to obtain an intermediate strip having both a softening effect and a uniform structure state while achieving fine control of the strip dimensional accuracy; in addition, the intermediate annealing and the abrasive belt grinding are respectively carried out on the strip blanks with different thicknesses, so that the intermediate strip blank with high surface quality can be obtained, and further, the strip with high surface quality can be obtained.
Preferably, the preparation method of the nickel-base corrosion-resistant alloy thin strip further comprises cold rolling and annealing of a finished product; in the finished product cold rolling process, the cold rolling deformation is 45-65%.
Preferably, in the finished product annealing process, the finished product annealing temperature is 1110-1140 ℃.
According to the preparation method of the nickel-based corrosion-resistant alloy thin strip, the mechanical property, corrosion resistance and surface quality of the nickel-based corrosion-resistant alloy thin strip are comprehensively improved through optimizing a homogenization process, a hot rolling process, a cold rolling process, an intermediate annealing process, a finished product cold rolling process, a finished product annealing process and the like, so that the nickel-based corrosion-resistant alloy thin strip with uniform fine grain structure, high surface quality, and excellent room-temperature tensile property and corrosion resistance is obtained.
In summary, the present application has the following beneficial effects:
1. the application provides a nickel-based corrosion-resistant alloy thin strip, wherein the content of key elements such as solid solution strengthening element Cr, corrosion-resistant element Mo and Cu in the nickel-based corrosion-resistant alloy thin strip is regulated, the content of gas and impurity elements is strictly controlled, and a homogenization system, a hot rolling system, a cold rolling system, an intermediate annealing system, a finished product cold rolling system and a finished product annealing system are optimized, so that the uniform fine-grain structure of the strip can be obtained, and the mechanical property, the corrosion resistance and the surface quality of the strip are comprehensively improved.
2. The grain size of the nickel-based corrosion-resistant alloy thin strip with the thickness of 0.05-0.30 mm is 7.0-9.0 grade, the room-temperature tensile strength is more than or equal to 800MPa, the yield strength is more than or equal to 400MPa, the elongation is more than or equal to 35%, and the surface roughness Ra value is 0.11-0.15 mu m.
3. The strip prepared by the preparation method of the nickel-based corrosion-resistant alloy thin strip provided by the application has good uniformity of tissue performance, excellent room-temperature tensile property, corrosion resistance and high surface quality, and is suitable for large-scale popularization and application.
Drawings
Fig. 1 is a photograph showing the grain structure of a nickel-based corrosion resistant alloy thin strip provided in example 1 of the present application.
Fig. 2 is a photograph of a nickel-based corrosion resistant alloy thin strip provided in example 2 of the present application.
Detailed Description
The application provides a nickel-based corrosion resistant alloy thin strip. The nickel-based corrosion-resistant alloy thin strip comprises the following components in percentage by mass: less than or equal to 0.008 percent of C, less than or equal to 0.002 percent of S, less than or equal to 0.010 percent of P, 21.0 to 25.0 percent of Cr, 14.5 to 17.5 percent of Mo, 1.2 to 2.0 percent of Cu, 0.10 to 0.50 percent of Al, less than or equal to 0.10 percent of Co, less than or equal to 1.00 percent of Fe, less than or equal to 0.05 percent of Si, less than or equal to 0.50 percent of Mn, less than or equal to 0.02 percent of Mg, less than or equal to 0.005 percent of O, less than or equal to 0.010 percent of N, and the balance of Ni; further, the nickel-based corrosion-resistant alloy thin strip comprises the following components: 0.004-0.006% of C, less than or equal to 0.002% of S, less than or equal to 0.010% of P, 23.0-24.0% of Cr, 16.0-17.0% of Mo, 1.5-1.7% of Cu, 0.3-0.4% of Al, less than or equal to 0.10% of Co, less than or equal to 1.00% of Fe, less than or equal to 0.05% of Si, less than or equal to 0.50% of Mn, less than or equal to 0.02% of Mg, less than or equal to 0.005% of O, less than or equal to 0.010% of N, and the balance of Ni.
The preparation method of the nickel-based corrosion-resistant alloy thin strip provided by the application specifically comprises the following steps:
(1) And (3) batching: the components are mixed uniformly according to the addition amount of each component.
(2) Vacuum induction melting: smelting and casting the raw materials into an ingot A by a vacuum induction smelting furnace.
(3) Electroslag remelting: and (3) carrying out electroslag remelting on the cast ingot A obtained in the step (2) to obtain an electroslag ingot.
(4) Homogenizing: treating the electroslag ingot obtained in the step (3) in a three-stage soaking mode to obtain an ingot B; the method comprises the following specific steps:
(4-1): the charging temperature is less than or equal to 600 ℃, then the temperature is increased to 950-1050 ℃ at the heating rate of less than or equal to 70 ℃/h, and the heat preservation time is 5-10 h;
(4-2): then heating to 1150-1170 ℃ at a heating rate of less than or equal to 40 ℃/h, and determining the heat preservation time t according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 10h; when D is 120 to 240mm, t is 18h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 28h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 45h;
(4-3): then heating to 1180-1200 ℃ at a heating rate of less than or equal to 30 ℃/h, and determining the heat preservation time t according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 25h; when D is 120 to 240mm, t is 35h; when D is more than 240 and less than or equal to 410mm, t is more than or equal to 45h; when D is more than 410 and less than or equal to 520mm, t is more than or equal to 75h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 135h;
(4-4): and finally, cooling the furnace temperature to below 600 ℃ to obtain the cast ingot B.
(5) Hot forging: sequentially cogging and slab forging the cast ingot B obtained in the step (4); wherein, the deformation of the cogging is 35-40%, and the cogging adopts a two-stage soaking mode; the method comprises the following specific steps:
(5-1) charging the furnace at a temperature of less than or equal to 600 ℃, then raising the temperature to 950-1050 ℃ at a heating rate of less than or equal to 70 ℃/h, and keeping the temperature for 2-5 h;
(5-2): then heating to 1170-1190 ℃ at a heating rate of less than or equal to 30 ℃/h, and determining the heat preservation time t according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 2h; when D is 120 to 240mm, t is more than or equal to 4h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 6h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 8h;
(5-3): immediately starting slab forging, wherein the deformation amount of each firing of the slab forging is more than or equal to 35%, the final forging temperature is more than or equal to 960 ℃, and the thickness of a blank obtained after hot forging is 40-80 mm.
(6) Surface treatment after hot forging: and removing the oxide skin on the surface of the blank after hot forging by adopting a mechanical polishing method to obtain a thick blank.
(7) And (3) hot rolling: carrying out high-temperature hot rolling on the thick blank obtained in the step (6) to obtain a thin blank; the heating temperature of hot rolling is 1180-1200 ℃, the finishing temperature is more than or equal to 960 ℃, the deformation amount of each firing time is 35-60%, and the thickness of the thin blank is 3-4 mm.
(8) Solution treatment: carrying out solution treatment on the thin blank obtained in the step (7) to obtain a blank after solution treatment; wherein the temperature of the solution treatment is 1150-1180 ℃, and the heat preservation time is 40-60 min.
(9) Surface treatment after solid solution: carrying out surface treatment on the plate blank subjected to the solution treatment in the step (8) in a pickling and mechanical polishing mode to obtain a strip blank; the surface roughness Ra value of the strip blank is less than or equal to 2.0 mu m.
(10) Cold rolling: cold rolling the strip blank obtained in the step (9) to obtain a cold-rolled strip blank; wherein the deformation amount of cold rolling at each time is 30-65%;
in the cold rolling process, annealing is performed by adopting a continuous annealing mode under the protection of inert gas, and the continuous annealing temperature is 1130-1160 ℃. The continuous annealing is further performed on the strip blank with the thickness of 1.5-2.0 mm by adopting a trolley furnace or a box furnace for intermediate annealing, wherein the intermediate annealing temperature is 1150-1180 ℃, the heat preservation time is 40-60 min, and the cooling mode is water cooling; and (3) polishing the surface of the strip blank with the thickness of 0.5-1.0 mm by adopting an abrasive belt after the intermediate annealing.
(11) Cold rolling of finished products: and (3) cold rolling the strip blank obtained in the step (10), wherein the cold rolling deformation is 45-65%.
(12) And (3) annealing a finished product: annealing the cold-rolled finished product obtained in the step (11) to obtain a nickel-based corrosion-resistant alloy thin strip; wherein the annealing temperature of the finished product is 1110-1140 ℃.
The alloy raw materials employed in the present application are all commercially available.
The present application will be described in further detail with reference to examples, descriptions of drawings, and performance test.
Examples
Example 1
Example 1 provides a nickel-based corrosion resistant alloy thin strip.
The nickel-based corrosion-resistant alloy thin strip comprises the following components in percentage by mass: c:0.002%, S0.0005%, P:0.001%, cr:23.03%, mo:15.86%, cu:1.66%, al:0.23%, co:0.08%, fe:0.04%, si:0.049%, mn:0.24%, mg:0.0084%, O:0.0015%, N:0.0053%, the balance being Ni.
The preparation method of the nickel-based corrosion-resistant alloy thin strip specifically comprises the following steps:
(1) And (3) batching: according to the addition amount of each raw material of the nickel-based corrosion-resistant alloy thin strip, the raw materials are uniformly mixed.
(2) Vacuum induction melting: smelting and casting the raw materials into an ingot A by a vacuum induction smelting furnace.
(3) Electroslag remelting: and (3) carrying out electroslag remelting on the cast ingot A obtained in the step (2) to obtain an electroslag ingot, wherein the diameter D of the electroslag ingot is 440mm.
(4) Homogenizing: placing the electroslag ingot obtained in the step (3) into a furnace body of a homogenization treatment furnace; setting the charging temperature to 500 ℃, then raising the temperature to 1000 ℃ at a heating rate of 70 ℃/h, and keeping the temperature for 6h; then heating to 1160 ℃ at a heating rate of 30 ℃/h, and preserving heat for 28h; and then heating to 1190 ℃ at a heating rate of 30 ℃/h, preserving heat for 48h, finally cooling to below 600 ℃ in a furnace, and discharging to obtain an ingot B, wherein the diameter of the ingot B is 440mm.
(5) Hot forging: firstly cogging an ingot B, setting the charging temperature to 500 ℃, then raising the temperature to 1000 ℃ at the temperature raising speed of 70 ℃/h, keeping the temperature for 3.5h, then raising the temperature to 1180 ℃ at the temperature raising speed of 30 ℃/h, keeping the temperature for 6h, and immediately starting forging;
wherein, the cogging deformation is 37.5%; the deformation amount of the plate blank after forging each time is 45%, the final forging temperature is 980 ℃, and the thickness of the blank after hot forging is 45mm.
(6) Surface treatment after hot forging: and removing the oxide skin on the surface of the blank after hot forging by adopting a mechanical polishing method to obtain a thick blank.
(7) And (3) hot rolling: carrying out high-temperature hot rolling on the thick blank obtained in the step (6) to obtain a thin blank; wherein the heating temperature of the hot rolling is 1180 ℃, the finishing temperature is 980 ℃, the deformation amount per fire is 45%, and the thickness of the thin blank is 3.5mm.
(8) Solution treatment: carrying out solution treatment on the thin blank obtained in the step (7) to obtain a blank after solution treatment; wherein the temperature of the solution treatment is 1160 ℃, the heat preservation time is 45min, and the cooling mode is water cooling.
(9) Surface treatment after solid solution: carrying out surface treatment on the plate blank subjected to the solution treatment in the step (8) in a pickling and mechanical polishing mode to obtain a strip blank; the surface roughness Ra value of the strip was 2.0 μm.
(10) Cold rolling: cold rolling the strip blank obtained in the step (9) to obtain a cold-rolled strip blank;
the rolling process is 3.5-1.9-1.0-0.5-0.19 mm, and the deformation of each rolling Cheng Huoci is 46%, 47%, 50% and 62% respectively;
in the cold rolling step, annealing was performed by continuous annealing at 1140 ℃ under argon gas atmosphere. Wherein, for the strip blank with the thickness of 1.9mm, a trolley furnace or a box furnace is further adopted for annealing after continuous annealing, the intermediate annealing temperature is 1150 ℃, the heat preservation time is 50min, and the cooling mode is water cooling; for a strip with a thickness of 1.0mm, the surface of the strip is polished by an abrasive belt after intermediate annealing.
(11) Cold rolling of finished products: and (3) performing finished cold rolling on the strip blank with the thickness of 0.19mm obtained in the step (10) to obtain the strip blank with the thickness of 0.1mm, wherein the cold rolling deformation is 47%.
(12) And (3) annealing a finished product: and (3) annealing the strip blank obtained in the step (11) at 1130 ℃ to obtain the nickel-based corrosion-resistant alloy thin strip.
The nickel-based corrosion-resistant alloy thin strip obtained in this example had a thickness of 0.1mm and a width of 200mm. The grain size of the nickel-based corrosion-resistant alloy thin strip is 8.0 grade, the room temperature tensile strength is 857MPa, the yield strength is 455MPa, the elongation is 37.6 percent, and the surface roughness Ra value is 0.125 mu m; the strip of 1.9mm thickness in step (10) was subjected to an intergranular corrosion test according to ASTM A262C method, and the corrosion rate was found to be 0.73mm/a.
Example 2
Example 2 provides a nickel-based corrosion resistant alloy thin strip.
The nickel-based corrosion-resistant alloy thin strip comprises the following components in percentage by mass: c:0.005%, S0.0004%, P:0.003%, cr:22.21%, mo:15.58%, cu:1.60%, al:0.29%, co:0.08%, fe:0.03%, si:0.031%, mn:0.23%, mg:0.0073%, O:0.0010%, N:0.0025% and the balance Ni.
The preparation method of the nickel-based corrosion-resistant alloy thin strip specifically comprises the following steps:
(1) And (3) batching: according to the addition amount of each raw material of the nickel-based corrosion-resistant alloy thin strip, the raw materials are uniformly mixed.
(2) Vacuum induction melting: smelting and casting the raw materials into an ingot A by a vacuum induction smelting furnace.
(3) Electroslag remelting: and (3) carrying out electroslag remelting on the cast ingot A obtained in the step (2) to obtain an electroslag ingot, wherein the diameter D of the electroslag ingot is 440mm.
(4) Homogenizing: placing the electroslag ingot obtained in the step (3) into a furnace body of a homogenization treatment furnace; setting the charging temperature to 500 ℃, then raising the temperature to 1000 ℃ at a heating rate of 60 ℃/h, and preserving the heat for 8h; then heating to 1170 ℃ at a heating rate of 30 ℃/h, and preserving heat for 30h; and then heating to 1190 ℃ at a heating rate of 30 ℃/h, preserving heat for 50h, finally cooling to below 600 ℃ in a furnace, and discharging to obtain an ingot B, wherein the diameter of the ingot B is 440mm.
(5) Hot forging: firstly cogging an ingot B, setting the charging temperature to 500 ℃, then raising the temperature to 1000 ℃ at the temperature raising speed of 70 ℃/h, preserving the heat for 4h, then raising the temperature to 1180 ℃ at the temperature raising speed of 30 ℃/h, preserving the heat for 8h, and immediately starting forging;
wherein, the cogging deformation is 40%; the deformation amount of the plate blank after forging each time is 40%, the final forging temperature is 980 ℃, and the thickness of the blank after hot forging is 50mm.
(6) Surface treatment after hot forging: and removing the oxide skin on the surface of the blank after hot forging by adopting a mechanical polishing method to obtain a thick blank.
(7) And (3) hot rolling: carrying out high-temperature hot rolling on the thick blank obtained in the step (6) to obtain a thin blank; wherein the heating temperature of the hot rolling is 1190 ℃, the finishing temperature is 980 ℃, the deformation amount per fire is 50%, and the thickness of the thin blank is 4.0mm.
(8) Solution treatment: carrying out solution treatment on the thin blank obtained in the step (7) to obtain a blank after solution treatment; wherein the temperature of the solution treatment is 1150 ℃, the heat preservation time is 60min, and the cooling mode is water cooling.
(9) Surface treatment after solid solution: carrying out surface treatment on the plate blank subjected to the solution treatment in the step (8) in a pickling and mechanical polishing mode to obtain a strip blank; the surface roughness Ra value of the strip was 1.8 μm.
(10) Cold rolling: cold rolling the strip blank obtained in the step (9) to obtain a cold-rolled strip blank;
the rolling process is 4.0-2.0-1.0-0.5-0.19 mm, and the deformation of each rolling Cheng Huoci is 50%, 50% and 62% respectively;
in the cold rolling step, annealing was performed by continuous annealing at 1130 ℃. Wherein, for the strip blank with the thickness of 2.0mm, a trolley furnace or a box furnace is further adopted for annealing after continuous annealing, the intermediate annealing temperature is 1160 ℃, the heat preservation time is 60min, and the cooling mode is water cooling; for a strip with a thickness of 1.0mm, the surface of the strip is polished by an abrasive belt after intermediate annealing.
(11) Cold rolling of finished products: and (3) performing finished cold rolling on the strip blank with the thickness of 0.19mm obtained in the step (10) to obtain a strip blank with the cold rolling deformation of 63 percent, thereby obtaining the strip blank with the thickness of 0.07 mm.
(12) And (3) annealing a finished product: and (3) annealing the strip blank obtained in the step (11) at 1120 ℃ to obtain the nickel-based corrosion-resistant alloy thin strip.
The nickel-based corrosion-resistant alloy thin strip obtained in this example had a thickness of 0.07mm and a width of 200mm. The grain size of the nickel-based corrosion-resistant alloy thin strip is 8.0 grade, the room temperature tensile strength is 835MPa, the yield strength is 421MPa, the elongation is 35.2%, and the surface roughness Ra value is 0.115 mu m; the strip of 2.0mm thickness in step (10) was subjected to an intergranular corrosion test according to ASTM A262C method, and the corrosion rate was found to be 0.84mm/a.
Example 3
Example 3 provides a nickel-based corrosion resistant alloy thin strip.
The above embodiment differs from embodiment 1 in that: the dosages of each component in the nickel-based corrosion-resistant alloy thin strip are as follows:
the nickel-based corrosion resistant alloy thin strip provided in example 3 comprises the following components (in mass percent): c:0.005%, S0.0005%, P:0.001%, cr:23.03%, mo:16.25%, cu:1.66%, al:0.34%, co:0.08%, fe:0.04%, si:0.049%, mn:0.24%, mg:0.0084%, O:0.0015%, N:0.0053%, the balance being Ni.
The nickel-based corrosion-resistant alloy thin strip obtained in this example had a thickness of 0.1mm and a width of 200mm. The grain size of the nickel-based corrosion-resistant alloy thin strip is detected to be ASTM 8.0 grade, the room temperature tensile strength is 866MPa, the yield strength is 462MPa, the elongation is 37.4 percent, and the surface roughness Ra value is 0.124 mu m; the strip of 1.9mm thickness in step (10) was subjected to an intergranular corrosion test according to ASTM A262C method, and the corrosion rate was found to be 0.71mm/a.
Comparative example
Comparative example 1
Comparative example 1 provides a nickel-based corrosion resistant alloy thin strip.
The above comparative example is different from example 1 in that: the dosages of each component in the nickel-based corrosion-resistant alloy thin strip are as follows:
the nickel-based corrosion resistant alloy thin strip provided in comparative example 1 comprises the following components (in mass percent): c:0.01%, S:0.0005%, P:0.001%, cr:19.5%, mo:3.0%, cu:2.5%, al:0.6%, co:0.08%, fe:0.04%, si:0.049%, mn:0.24%, mg:0.0084%, O:0.0015%, N:0.0053%, the balance being Ni.
The nickel-base corrosion-resistant alloy thin strip obtained in comparative example 1 had a thickness of 0.1mm and a width of 200mm. The grain size of the nickel-based corrosion-resistant alloy thin strip is detected to be ASTM7.0 grade, the room temperature tensile strength is 720MPa, the yield strength is 350MPa, the elongation is 28.5 percent, and the surface roughness Ra value is 0.14 mu m; the strip of 1.9mm thickness in step (10) was subjected to an intergranular corrosion test according to ASTM A262C method, and the corrosion rate was found to be 4.0mm/a.
Comparative example 2
Comparative example 2 provides a nickel-based corrosion resistant alloy thin strip.
The above comparative example is different from example 1 in that: (4) a homogenization step, specifically comprising:
in the preparation method of the nickel-based corrosion-resistant alloy thin strip provided in comparative example 2, (4) the homogenization procedure is as follows: placing the electroslag ingot obtained in the step (3) into a furnace body of a homogenization treatment furnace, setting the furnace loading temperature to be 500 ℃, then heating the furnace temperature to 1190 ℃ at a heating rate of 70 ℃/h, preserving heat for 48 hours, finally cooling the furnace to below 600 ℃, and discharging the furnace to obtain an ingot B.
Placing the electroslag ingot obtained in the step (3) into a furnace body of homogenization treatment equipment; setting the charging temperature to 500 ℃, then raising the temperature to 1160 ℃ at a heating rate of 70 ℃/h, and preserving the heat for 28 hours; and then heating to 1190 ℃ at a heating rate of 30 ℃/h, preserving heat for 48h, finally cooling to below 600 ℃ in a furnace, and discharging to obtain the ingot B.
The nickel-base corrosion-resistant alloy thin strip obtained in comparative example 2 had a thickness of 0.1mm and a width of 200mm. The grain size of the nickel-based corrosion-resistant alloy thin strip is detected to be ASTM7.5 grade, the room temperature tensile strength is 750MPa, the yield strength is 372MPa, the elongation is 30%, and the surface roughness Ra value is 0.132 mu m; the strip of 1.9mm thickness in step (10) was subjected to an intergranular corrosion test according to ASTM A262C method, and the corrosion rate was found to be 0.98mm/a.
Comparative example 3
Comparative example 3 provides a nickel-based corrosion resistant alloy thin strip.
The above comparative example is different from example 1 in that: (10) a cold rolling step, specifically comprising:
in the preparation method of the nickel-based corrosion-resistant alloy thin strip provided in comparative example 3, (10) the cold rolling process is as follows: cold rolling the strip blank obtained in the step (9) to obtain a cold-rolled strip blank;
the rolling process is 3.5-2.8-2.15-1.72-1.37-1.0-0.6-0.36-0.19 mm, and the deformation of each rolling Cheng Huoci is 20%, 23%, 20%, 27%, 40% and 47%;
in the cold rolling process, the annealing temperature of each hot cold rolling is 1140 ℃, the heat preservation time is 20min, and air cooling is adopted after intermediate annealing.
The nickel-base corrosion-resistant alloy thin strip obtained in comparative example 3 had a thickness of 0.1mm and a width of 200mm. The grain size of the nickel-based corrosion-resistant alloy thin strip is detected to be ASTM7.0 grade, the room temperature tensile strength is 749MPa, the yield strength is 365MPa, the elongation is 29.5 percent, and the surface roughness Ra value is 0.141 mu m; the strip of 1.9mm thickness in step (10) was subjected to an intergranular corrosion test according to ASTM A262C method, and the corrosion rate was found to be 1.53mm/a.
In conclusion, the nickel-based corrosion-resistant alloy thin strip provided by the application has higher surface quality, uniform fine grain structure, excellent room-temperature tensile property and corrosion resistance, and can completely meet technical indexes and use requirements.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (11)
1. A thin nickel-base corrosion resistant alloy strip, characterized in that it comprises, in mass percent: less than or equal to 0.008 percent of C, less than or equal to 0.002 percent of S, less than or equal to 0.010 percent of P, 21.0 to 25.0 percent of Cr, 14.5 to 17.5 percent of Mo, 1.2 to 2.0 percent of Cu, 0.10 to 0.50 percent of Al, less than or equal to 0.10 percent of Co, less than or equal to 1.00 percent of Fe, less than or equal to 0.05 percent of Si, less than or equal to 0.50 percent of Mn, less than or equal to 0.02 percent of Mg, less than or equal to 0.005 percent of O, less than or equal to 0.010 percent of N, and the balance of Ni;
the preparation method of the nickel-based corrosion-resistant alloy thin strip comprises the following steps: vacuum induction smelting, electroslag remelting, homogenization, hot forging, hot rolling, solid solution, surface treatment after solid solution and cold rolling;
the homogenization procedure is as follows: placing the electroslag ingot obtained by electroslag remelting into homogenizing equipment, and then treating by adopting a three-stage soaking mode; the three-stage soaking mode specifically comprises the following steps:
s1: the charging temperature is less than or equal to 600 ℃, then the temperature is increased to 950-1050 ℃ at the heating rate of less than or equal to 70 ℃/h, and the heat preservation time is 5-10 h;
s2: then heating to 1150-1170 ℃ at a heating rate of less than or equal to 40 ℃/h, and preserving heat, wherein the heat preserving time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 10h; when D is 120 to 240mm, t is 18h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 28h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 45h;
s3: then heating to 1180-1200 ℃ at a heating rate of less than or equal to 30 ℃/h, and preserving heat, wherein the heat preserving time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 25h; when D is 120 to 240mm, t is 35h; when D is more than 240 and less than or equal to 410mm, t is more than or equal to 45h; when D is more than 410 and less than or equal to 520mm, t is more than or equal to 75h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 135h.
2. The thin nickel-base corrosion resistant alloy strip according to claim 1, comprising the following components in mass percent: 0.004-0.006% of C, less than or equal to 0.002% of S, less than or equal to 0.010% of P, 23.0-24.0% of Cr, 16.0-17.0% of Mo, 1.5-1.7% of Cu, 0.3-0.4% of Al, less than or equal to 0.10% of Co, less than or equal to 1.00% of Fe, less than or equal to 0.05% of Si, less than or equal to 0.50% of Mn, less than or equal to 0.02% of Mg, less than or equal to 0.005% of O, less than or equal to 0.010% of N, and the balance of Ni.
3. The thin strip of nickel-base corrosion resistant alloy according to claim 1 or 2, wherein the thin strip of nickel-base corrosion resistant alloy has a thickness of 0.05-0.30 mm and a width of 180-350 mm.
4. A method of producing a nickel-base corrosion resistant alloy thin strip according to any one of claims 1 to 3, comprising the steps of: vacuum induction smelting, electroslag remelting, homogenization, hot forging, hot rolling, solid solution, surface treatment after solid solution and cold rolling;
the homogenization procedure is as follows: placing the electroslag ingot obtained by electroslag remelting into homogenizing equipment, and then treating by adopting a three-stage soaking mode; the three-stage soaking mode specifically comprises the following steps:
s1: the charging temperature is less than or equal to 600 ℃, then the temperature is increased to 950-1050 ℃ at the heating rate of less than or equal to 70 ℃/h, and the heat preservation time is 5-10 h;
s2: then heating to 1150-1170 ℃ at a heating rate of less than or equal to 40 ℃/h, and preserving heat, wherein the heat preserving time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 10h; when D is 120 to 240mm, t is 18h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 28h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 45h;
s3: then heating to 1180-1200 ℃ at a heating rate of less than or equal to 30 ℃/h, and preserving heat, wherein the heat preserving time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 25h; when D is 120 to 240mm, t is 35h; when D is more than 240 and less than or equal to 410mm, t is more than or equal to 45h; when D is more than 410 and less than or equal to 520mm, t is more than or equal to 75h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 135h.
5. The method of producing a thin strip of nickel-base corrosion resistant alloy as claimed in claim 4, wherein said hot forging process comprises cogging; the cogging adopts a two-stage soaking mode, and specifically comprises the following steps:
s1: the charging temperature is less than or equal to 600 ℃, the temperature is increased to 950-1050 ℃ at the heating rate of less than or equal to 70 ℃/h, and the heat preservation time is 2-5 h
S2: then heating to 1170-1190 ℃ at a heating rate of less than or equal to 30 ℃/h, and preserving heat, wherein the heat preservation time t is determined according to the diameter D of the electroslag ingot: when D is less than or equal to 120mm, t is more than or equal to 2h; when D is 120 to 240mm, t is more than or equal to 4h; when D is more than 240 and less than or equal to 520mm, t is more than or equal to 6h; when D is 520 to be less than or equal to 700mm, t is more than or equal to 8h.
6. The method according to claim 4, wherein in the hot rolling step, the heating temperature is 1180 to 1200 ℃, the finishing temperature is 960 ℃ or higher, and the deformation amount per fire is 35 to 60%.
7. The method for producing a thin strip of nickel-base corrosion resistant alloy as claimed in claim 4, wherein the temperature in the solid solution step is 1150-1180 ℃ and the holding time is 40-60 min.
8. The method of producing a thin strip of nickel-base corrosion resistant alloy as claimed in claim 4, wherein said post-solutionizing surface treatment process is: carrying out surface treatment on the plate blank obtained after solid solution by means of acid washing and mechanical grinding to obtain a strip blank; the surface roughness Ra value of the strip blank is less than or equal to 2.0 mu m.
9. The method for producing a thin nickel-base corrosion-resistant alloy strip according to claim 4, wherein in the cold rolling step, the amount of cold rolling deformation per hot is 30 to 65%;
annealing is carried out in a continuous annealing mode in the cold rolling process, and the continuous annealing temperature is 1130-1160 ℃;
the strip blank with the thickness of 1.5-2.0 mm obtained by cold rolling is subjected to continuous annealing, then intermediate annealing is further performed by adopting a trolley furnace or a box furnace, the intermediate annealing temperature is 1150-1180 ℃, the heat preservation time is 40-60 min, and the cooling mode is water cooling;
and (3) polishing the surface of the strip blank by adopting an abrasive belt after intermediate annealing for the strip blank with the thickness of 0.5-1.0 mm obtained by cold rolling.
10. The method of producing a thin nickel-base corrosion resistant alloy strip according to claim 4, further comprising cold rolling and annealing of the finished product; in the finished product cold rolling process, the cold rolling deformation is 45-65%.
11. The method of claim 10, wherein the final annealing temperature is 1110-1140 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211491264.2A CN115786773B (en) | 2022-11-25 | 2022-11-25 | Nickel-based corrosion-resistant alloy thin strip and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211491264.2A CN115786773B (en) | 2022-11-25 | 2022-11-25 | Nickel-based corrosion-resistant alloy thin strip and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115786773A CN115786773A (en) | 2023-03-14 |
| CN115786773B true CN115786773B (en) | 2024-03-26 |
Family
ID=85441533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211491264.2A Active CN115786773B (en) | 2022-11-25 | 2022-11-25 | Nickel-based corrosion-resistant alloy thin strip and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115786773B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0853730A (en) * | 1994-07-22 | 1996-02-27 | Haynes Internatl Inc | Corrosion-resistant ni-cr-mo-cu alloy |
| CN1847426A (en) * | 2005-10-28 | 2006-10-18 | 兰州理工大学 | Anticorrosive nickel-base alloy and its prepn process |
| JP2009185352A (en) * | 2008-02-07 | 2009-08-20 | Nippon Yakin Kogyo Co Ltd | Ni-BASED ALLOY MATERIAL HAVING COLD STRENGTH AND WORKABILITY AND CREEP PROPERTY AND METHOD FOR PRODUCING THE SAME |
| JP2010001558A (en) * | 2008-05-22 | 2010-01-07 | Mitsubishi Materials Corp | Valve member of cylinder for charging halogen gas and halogen compound gas |
| CN106676331A (en) * | 2016-12-22 | 2017-05-17 | 钢铁研究总院 | High-temperature-resistant high-elastic nickel-chromium alloy strip and preparation method thereof |
| CN112813369A (en) * | 2020-12-31 | 2021-05-18 | 北京钢研高纳科技股份有限公司 | High-strength high-elasticity high-plasticity nickel-based high-temperature alloy strip and preparation process thereof |
| CN113604707A (en) * | 2021-08-11 | 2021-11-05 | 广东省科学院新材料研究所 | Nickel-based high-temperature alloy, and preparation method and application thereof |
-
2022
- 2022-11-25 CN CN202211491264.2A patent/CN115786773B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0853730A (en) * | 1994-07-22 | 1996-02-27 | Haynes Internatl Inc | Corrosion-resistant ni-cr-mo-cu alloy |
| CN1847426A (en) * | 2005-10-28 | 2006-10-18 | 兰州理工大学 | Anticorrosive nickel-base alloy and its prepn process |
| JP2009185352A (en) * | 2008-02-07 | 2009-08-20 | Nippon Yakin Kogyo Co Ltd | Ni-BASED ALLOY MATERIAL HAVING COLD STRENGTH AND WORKABILITY AND CREEP PROPERTY AND METHOD FOR PRODUCING THE SAME |
| JP2010001558A (en) * | 2008-05-22 | 2010-01-07 | Mitsubishi Materials Corp | Valve member of cylinder for charging halogen gas and halogen compound gas |
| CN106676331A (en) * | 2016-12-22 | 2017-05-17 | 钢铁研究总院 | High-temperature-resistant high-elastic nickel-chromium alloy strip and preparation method thereof |
| CN112813369A (en) * | 2020-12-31 | 2021-05-18 | 北京钢研高纳科技股份有限公司 | High-strength high-elasticity high-plasticity nickel-based high-temperature alloy strip and preparation process thereof |
| CN113604707A (en) * | 2021-08-11 | 2021-11-05 | 广东省科学院新材料研究所 | Nickel-based high-temperature alloy, and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115786773A (en) | 2023-03-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2022127104A1 (en) | High-grade non-oriented silicon steel and production method therefor | |
| CN112893510B (en) | Forging and heat treatment process of marine corrosion-resistant pull rod duplex stainless steel forging | |
| EP4206352A1 (en) | Production method for non-oriented silicon steel, and non-oriented silicon steel | |
| CN109112423B (en) | Super-thick alloy steel plate with excellent low-temperature toughness and preparation method thereof | |
| CN115418534B (en) | 8090 aluminum lithium alloy fine-grain plate and preparation method thereof | |
| JPS60100655A (en) | Production of high cr-containing ni-base alloy member having excellent resistance to stress corrosion cracking | |
| CN115896419A (en) | Preparation method and application of GH2132 alloy bar | |
| KR101630403B1 (en) | Manufacture method of nuclear fuel component made of zirconium applied multi-stage cold rolling | |
| CN108624820B (en) | Automobile high-strength ductile steel with strength-elongation product of more than 45 GPa% and preparation method thereof | |
| CN115786773B (en) | Nickel-based corrosion-resistant alloy thin strip and preparation method thereof | |
| CN113046646A (en) | High-strength low-density dual-phase steel and preparation method thereof | |
| CN110042271A (en) | A kind of high-strength copper band and its manufacturing method | |
| CN114737129B (en) | High-performance non-oriented silicon steel for wound motor iron core and production method thereof | |
| CN116005078A (en) | Manufacturing method of lamellar heterogeneous structure high-strength steel | |
| CN110877050B (en) | Preparation method of zirconium alloy hot rolled plate | |
| CN115354227A (en) | Ferrite martensitic steel for reactor fuel cladding material and heat treatment process thereof | |
| CN113322417A (en) | Laves phase reinforced stainless steel and preparation method thereof | |
| CN115323283B (en) | Low-alloy high-strength non-oriented silicon steel and production method thereof | |
| CN114737070B (en) | Preparation method of 6111-T7-state aluminum alloy plate | |
| CN117187668B (en) | Preparation method of high-strength high-elasticity alloy wire | |
| JPS5819725B2 (en) | Manufacturing method of ferritic stainless steel sheet | |
| CN118109742B (en) | Method for producing austenitic stainless steel and austenitic stainless steel | |
| CN117144200A (en) | Titanium plate and preparation process thereof | |
| CN114289655A (en) | Technology for eliminating ferrite of large-size austenitic stainless steel forging for high temperature | |
| CN115094316A (en) | Super-thick steel plate with excellent core low-temperature impact toughness and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |