CN116043067A - Novel high-temperature alloy material and forming method thereof - Google Patents
Novel high-temperature alloy material and forming method thereof Download PDFInfo
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- 239000000956 alloy Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 47
- 239000012535 impurity Substances 0.000 claims abstract description 3
- 238000000137 annealing Methods 0.000 claims description 40
- 238000010622 cold drawing Methods 0.000 claims description 27
- 238000003723 Smelting Methods 0.000 claims description 21
- 229910000601 superalloy Inorganic materials 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 13
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 10
- 239000000314 lubricant Substances 0.000 claims description 10
- 238000007670 refining Methods 0.000 claims description 10
- 239000002893 slag Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 8
- 238000005098 hot rolling Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- 229910052719 titanium Inorganic materials 0.000 claims description 7
- 229910052804 chromium Inorganic materials 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000004061 bleaching Methods 0.000 claims description 5
- 239000007888 film coating Substances 0.000 claims description 5
- 238000009501 film coating Methods 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229910017604 nitric acid Inorganic materials 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000005491 wire drawing Methods 0.000 claims description 5
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 2
- 229910004261 CaF 2 Inorganic materials 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 abstract description 23
- 230000007797 corrosion Effects 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 19
- 239000011651 chromium Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 9
- 239000010936 titanium Substances 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000006104 solid solution Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000005272 metallurgy Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
- B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/02—Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/023—Alloys based on nickel
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/10—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of nickel or cobalt or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/10—Other heavy metals
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
-
- 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
Abstract
The invention discloses a novel high-temperature alloy material and a forming method thereof, belonging to the technical field of resistance wire and material processing for high-temperature heating equipment resistance; the high-temperature alloy material comprises the following components in parts by mass: ni:48.5% -58.5%, cr:40% -45%, cu:1% -4%, ti: 0.5-2%, C less than or equal to 0.06%, S less than or equal to 0.025%, P less than or equal to 0.025%, and the rest of impurity elements: less than or equal to 0.5 percent. The invention uses the novel method for forming the high-temperature alloy cold drawn wire to form the high-temperature alloy containing high-content Cr element; cu is added into the high-temperature alloy cold drawn wire, so that the oxidation resistance and corrosion resistance of the alloy material in the environment of air, ocean and the like are effectively improved.
Description
Technical Field
The invention belongs to the technical field of resistance wire and material processing for high-temperature heating equipment, and particularly relates to a novel high-temperature alloy material and a forming method thereof.
Background
The electrothermal alloy is a functional alloy material for converting electric energy into heat energy, and has a maximum working temperature of 1400 ℃ and is used for manufacturing various electrothermal elements in the fields of metallurgy, machinery, petrifaction, electricity, construction, military industry, household appliances and the like. At present, the electrothermal alloy material becomes an important engineering alloy material and plays an important role in national economy.
Chinese patent discloses (application number: 202010267171.6) nickel: chromium: iron: the preparation method of the cobalt-based deformed superalloy wire comprises the following steps: nickel: chromium: iron: designing alloy components of the cobalt-based deformation superalloy wire: ni:50.0 to 53.0 percent; cr:17.0 to 21.0 percent; fe:8.0 to 10.0 percent; co:8.0 to 10.0 percent; al:1.2 to 1.7 percent; ti:0.5 to 1.0 percent; nb:5.15 to 5.8 percent; w:1.0 to 1.5 percent; mo:2.5 to 3.1 percent; c:0.01 to 0.025 percent; p: 0.005-0.012%; b: 0.004-0.006%; si is less than or equal to 0.15 percent; mn is less than or equal to 0.30 percent; s is less than or equal to 0.002 percent.
The Cr content of the above patent and the prior high temperature alloy is generally below 23%, and the Cr is mainly dissolved in the gamma phase matrix, thereby achieving the effect of solid solution strengthening. The increase of Cr content can obviously improve the strength, hardness, heat treatment hardenability, corrosion resistance and the like of steel, and is particularly suitable for service requirements under the condition of high-temperature strength. However, too high a Cr content will lead to a drastic decrease in plastic workability of the material, and processing cracks are likely to occur, which results in difficulty in plastic working of the alloy material, low yield, and how to plastic work a high-temperature alloy with a high Cr element content has been a technical problem in production.
Disclosure of Invention
The invention provides a novel high-temperature alloy material with high Cr content and a forming method thereof aiming at the defects.
The invention aims at realizing the following steps: a novel superalloy material is characterized in that: the high-temperature alloy material comprises the following components in percentage by mass: 48.5 to 58.5 percent, cr:40% -45%, cu:1% -4%, ti:0.5 to 2 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P, and less than or equal to 0.5 percent of other impurity elements.
Preferably, the high-temperature alloy material comprises the following components in percentage by mass: 56.8%, cr:40%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
Preferably, the high-temperature alloy material comprises the following components in percentage by mass: 54.8%, cr:42%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
Preferably, the high-temperature alloy material comprises the following components in percentage by mass: 52.8%, cr:44%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
A forming method of a novel superalloy material is characterized by comprising the following steps: the method comprises the following steps:
step 1): preparation of raw materials
Taking materials according to mass percentages;
step 2): vacuum smelting
Smelting the taken material in a vacuum induction furnace to form a blank, wherein the smelting temperature is 1350-1450 ℃; argon of 0.05Mpa is introduced in the smelting process;
step 3): electroslag remelting refining
Melting the blank by using resistance heat generated when current passes through slag, and solidifying and crystallizing to form a cylindrical ingot; refining temperature is 1250-1350 ℃; the slag comprises the following components: 60% CaF 2 -12％CaO-22％Al 2 O 3 -3％MgO-3％TiO 2 ；
Step 4): rolling into a circle
Carrying out continuous hot rolling on the cast ingot for 3-4 times;
step 5): annealing
Annealing the hot rolled coil at 1020-1080 ℃ for 4-6 hours;
step 6): acid washing
Carrying out acid washing treatment on the annealed wire rod;
step 7): cold drawn filament
Cold drawing the wire rod on a film coating machine, wherein the temperature of a wire drawing die is controlled to be 200-300 ℃; and finally, winding the wire product into a roll, packaging and warehousing.
Preferably, the specific operation of the pickling treatment in step 6) is as follows:
soaking in 45-57% concentration sulfuric acid solution for 8-12 hr, and bleaching with 3-6% concentration nitric acid solution; finally, the mixture is washed clean by hot water at 60-80 ℃.
Preferably, the cold drawing into filaments in step 7) specifically includes the following steps:
step 7-1): the first cold drawing, the diameter of the wire is processed to 3.5-3.8 mm, continuous vacuum annealing treatment is directly carried out, the annealing temperature is 1020-1080 ℃, the annealing time is 2-3 minutes, and the continuous conveying speed of the wire is 3-5 m/s;
step 7-2): the second cold drawing, processing the diameter of the wire material to 2-2.5 mm, directly carrying out continuous vacuum annealing treatment, wherein the annealing temperature is 1020-1080 ℃, the annealing time is 1-2 minutes, and the continuous conveying speed of the wire material is 3-5 m/s;
step 7-3): and thirdly, cold drawing, namely processing the wire diameter to 1.2-1.4 mm, and continuously conveying the wire at a speed of 3-5 m/s.
Preferably, the preparation of the raw material in the step 1) is to take Ni:48.5 to 58.5 percent, cr:40% -45%, cu:1% -4%, ti:0.5 to 2 percent.
Preferably, in the step 4), the cast ingot is subjected to 3-4 times of continuous hot rolling, the total diameter reduction rate of the outer diameter of the hot continuous rolling is 70% -85%, the rolling temperature is controlled at 1250 ℃ -1350 ℃, the rolling speed is controlled at 20-30 m/s, and a coil with the diameter of 5.5-7 mm is formed.
Preferably, the wire in the step 7) is subjected to surface phosphating treatment before cold drawing, and a lubricant is smeared on the surface, wherein the lubricant is 80% zinc stearate and 20% lime powder.
The beneficial effects of the invention are as follows: 1. forming a high-temperature alloy containing a high content of Cr element by using a novel method for forming a high-temperature alloy cold drawn wire; cu element is added into the high-temperature alloy cold drawn wire, so that the oxidation resistance and corrosion resistance of the alloy material in the environment such as air, ocean and the like are effectively improved; meanwhile, the plastic processing problem of the alloy material under the high Cr content is solved, the diameter of the cold drawn wire is processed to be less than 1.4mm, a uniform and fine equiaxial crystal structure is obtained, a large number of Luan Jing structures exist in the crystal grains, the crystal grain size is 5-15 microns, and the industrialized mass production is realized.
2. By adding a small amount of Cu element into the high-temperature alloy cold drawn wire, cu and Ni can form a solid solution, so that the high-temperature alloy cold drawn wire has a solid solution strengthening effect, and the structural stability and corrosion resistance of the alloy material are improved.
3. By adding a small amount of Ti element into the high-temperature alloy cold drawn wire, ti and Ni can form Ni 3 The Ti precipitate phase (gamma') is always coherent with the matrix, can play a role in precipitation strengthening, and improves the high-temperature strength and corrosion resistance of the alloy at high temperature.
4. By using the novel forming method of the high-temperature alloy cold drawn wire, the large-blank smelting technology (80 Kg level) is realized, the material utilization rate is further improved, the energy consumption is reduced, and the productivity is improved; the cold drawn wire material prepared by the invention has the room temperature tensile strength of more than 800Mpa and the elongation of 40%, can greatly improve the service life of the material, and has the performance obviously superior to the comprehensive performance of the existing similar electrothermal alloy.
Drawings
FIG. 1 is a view showing a metallographic structure of a transverse section of a superalloy cold drawn wire according to the present invention.
FIG. 2 is a view showing a metallographic structure of a longitudinal section of the superalloy cold drawn wire according to the present invention.
FIG. 3 is a graph showing a room temperature mechanical tensile property test sample of cold drawn wire.
Fig. 4 is a drawing of a cold drawn wire.
Detailed Description
The invention is further summarized below with reference to the drawings. In order to better illustrate the technical solution and the advantageous effects of the present invention, the following description will be given with reference to the embodiments of the present invention and the accompanying drawings, which are meant to illustrate the present invention, not to limit it.
Embodiment one:
a novel superalloy material comprises the following components in percentage by weight: ni:56.8%, cr:40%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
The forming method of the novel superalloy cold drawn wire according to the first embodiment is as follows:
step 1): preparation of raw materials
Taking materials according to mass percent, and taking Ni:56.8%, cr:40%, cu:2.5%, ti:0.5%;
step 2): vacuum smelting
Smelting the taken material in a vacuum induction furnace to form a blank, wherein the smelting temperature is 1350-1450 ℃; the vacuum degree is less than 1Pa, argon with the pressure of 0.05MPa is introduced in the smelting process, after nickel, chromium and copper in the crucible are completely melted, titanium is added for 10-15 minutes, after the titanium is completely melted, the alloy liquid is stirred for 1-2 minutes with high power, so that the components are as uniform as possible, and finally casting is completed;
step 3): electroslag remelting refining
Melting the blank by using resistance heat generated when current passes through slag, and solidifying and crystallizing to form a cylindrical ingot; refining temperature is 1250 to 1350 ℃; the diameter of the cast ingot is 140-160 mm, and the length is 520-580 mm; the slag comprises the following components in percentage by mass: 60CaF 2 -12CaO-22Al 2 O 3 -3MgO-3TiO 2 ；
Step 4): rolling into a circle
Carrying out continuous hot rolling on the cast ingot for 3-4 times; the section size of the cast ingot is continuously reduced, the length is increased, the total diameter reduction rate of the outer diameter of the hot continuous rolling is 70-85%, the rolling temperature is 1250-1350 ℃, the rolling speed is 20-30 m/s, and finally a coil with the diameter of 5.5-7 mm is formed;
step 5): annealing
Annealing the hot rolled coil at 1020-1080 ℃ for 4-6 hours;
step 6): acid washing
Carrying out acid washing treatment on the annealed wire rod; the pickling treatment specifically comprises the following steps:
soaking in 45-57% concentration sulfuric acid solution for 8-12 hr, and bleaching with 3-6% concentration nitric acid solution; finally, washing with hot water at 60-80 ℃;
step 7): cold drawn filament
Carrying out surface phosphating treatment before cold drawing on the wire material each time, and coating a lubricant on the surface, wherein the lubricant is 80% zinc stearate and 20% lime powder; cold drawing the wire rod on a film coating machine, wherein the temperature of a wire drawing die is controlled to be 200-300 ℃;
step 7-1): the first cold drawing, the diameter of the wire is processed to 3.5-3.8 mm, continuous vacuum annealing treatment is directly carried out, the annealing temperature is 1020-1080 ℃, the annealing time is 2-3 minutes, and the continuous conveying speed of the wire is 3-5 m/s;
step 7-2): the second cold drawing, processing the diameter of the wire material to 2-2.5 mm, directly carrying out continuous vacuum annealing treatment, wherein the annealing temperature is 1020-1080 ℃, the annealing time is 1-2 minutes, and the continuous conveying speed of the wire material is 3-5 m/s;
step 7-3): and thirdly, cold drawing, namely processing the wire diameter to 1.2-1.4 mm, and continuously conveying the wire at a speed of 3-5 m/s. And finally, winding the wire product into a roll, packaging and warehousing.
Embodiment two:
a novel superalloy material comprises the following components in percentage by weight: ni:54.8%, cr:42%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
The forming method of the novel superalloy cold drawn wire in the second embodiment is as follows:
step 1): preparation of raw materials
Taking materials according to mass percent, and taking Ni:54.8%, cr:42%, cu:2.5%, ti:0.5%;
step 2): vacuum smelting
Smelting the taken material in a vacuum induction furnace to form a blank, wherein the smelting temperature is 1350-1450 ℃; the vacuum degree is less than 1Pa, argon with the pressure of 0.05MPa is introduced in the smelting process, after nickel, chromium and copper in the crucible are completely melted, titanium is added for 10-15 minutes, after the titanium is completely melted, the alloy liquid is stirred for 1-2 minutes with high power, so that the components are as uniform as possible, and finally casting is completed;
step 3): electroslag remelting refining
Melting the blank by using resistance heat generated when current passes through slag, and solidifying and crystallizing to form a cylindrical ingot; refining temperature is 1250-1350 ℃; the diameter of the cast ingot is 140-160 mm, and the length is 520-580 mm; the slag comprises the following components in percentage by mass: 60CaF 2 -12CaO-22Al 2 O 3 -3MgO-3TiO 2 ；
Step 4): rolling into a circle
Carrying out continuous hot rolling on the cast ingot for 3-4 times; the section size of the cast ingot is continuously reduced, the length is increased, the total diameter reduction rate of the outer diameter of the hot continuous rolling is 70-85%, the rolling temperature is 1250-1350 ℃, the rolling speed is 20-30 m/s, and finally a coil with the diameter of 5.5-7 mm is formed;
step 5): annealing
Annealing the hot rolled coil at 1020-1080 ℃ for 4-6 hours;
step 6): acid washing
Carrying out acid washing treatment on the annealed wire rod; the pickling treatment specifically comprises the following steps:
soaking in 45-57% concentration sulfuric acid solution for 8-12 hr, and bleaching with 3-6% concentration nitric acid solution; finally, washing with hot water at 60-80 ℃;
step 7): cold drawn filament
Carrying out surface phosphating treatment before cold drawing on the wire material each time, and coating a lubricant on the surface, wherein the lubricant is 80% zinc stearate and 20% lime powder; cold drawing the wire rod on a film coating machine, wherein the temperature of a wire drawing die is controlled to be 200-300 ℃;
step 7-1): the first cold drawing, the diameter of the wire is processed to 3.5-3.8 mm, continuous vacuum annealing treatment is directly carried out, the annealing temperature is 1020-1080 ℃, the annealing time is 2-3 minutes, and the continuous conveying speed of the wire is 3-5 m/s;
step 7-2): the second cold drawing, processing the diameter of the wire material to 2-2.5 mm, directly carrying out continuous vacuum annealing treatment, wherein the annealing temperature is 1020-1080 ℃, the annealing time is 1-2 minutes, and the continuous conveying speed of the wire material is 3-5 m/s;
step 7-3): thirdly, cold drawing, namely processing the diameter of the wire material to 1.2-1.4 mm, and continuously conveying the wire material at a speed of 3-5 m/s; and finally, winding the wire product into a roll, packaging and warehousing.
Embodiment III:
a novel superalloy material comprises the following components in percentage by weight: ni:52.8%, cr:44%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
The forming method of the novel superalloy cold drawn wire in the third embodiment is as follows:
step 1): preparation of raw materials
Taking materials according to mass percent, and taking Ni:52.8%, cr:44%, cu:2.5%, ti:0.5%;
step 2): vacuum smelting
Smelting the taken material in a vacuum induction furnace to form a blank, wherein the smelting temperature is 1350-1450 ℃; the vacuum degree is less than 1Pa, argon with the pressure of 0.05MPa is introduced in the smelting process, after nickel, chromium and copper in the crucible are completely melted, titanium is added for 10-15 minutes, after the titanium is completely melted, the alloy liquid is stirred for 1-2 minutes with high power, so that the components are as uniform as possible, and finally casting is completed;
step 3): electroslag remelting refining
Melting the blank by using resistance heat generated when current passes through slag, and solidifying and crystallizing to form a cylindrical ingot; refining temperature is 1250-1350 ℃; the diameter of the cast ingot is 140-160 mm, and the length is 520-580 mm; the slag comprises the following components in percentage by mass: 60CaF 2 -12CaO-22Al 2 O 3 -3MgO-3TiO 2 ；
Step 4): rolling into a circle
Carrying out continuous hot rolling on the cast ingot for 3-4 times; the section size of the cast ingot is continuously reduced, the length is increased, the total diameter reduction rate of the outer diameter of the hot continuous rolling is 70-85%, the rolling temperature is 1250-1350 ℃, the rolling speed is 20-30 m/s, and finally a coil with the diameter of 5.5-7 mm is formed;
step 5): annealing
Annealing the hot rolled coil at 1020-1080 ℃ for 4-6 hours;
step 6): acid washing
Carrying out acid washing treatment on the annealed wire rod; the pickling treatment specifically comprises the following steps:
soaking in 45-57% concentration sulfuric acid solution for 8-12 hr, and bleaching with 3-6% concentration nitric acid solution; finally, washing with hot water at 60-80 ℃;
step 7): cold drawn filament
Carrying out surface phosphating treatment before cold drawing on the wire material each time, and coating a lubricant on the surface, wherein the lubricant is 80% zinc stearate and 20% lime powder; cold drawing the wire rod on a film coating machine, wherein the temperature of a wire drawing die is controlled to be 200-300 ℃;
step 7-1): the first cold drawing, the diameter of the wire is processed to 3.5-3.8 mm, continuous vacuum annealing treatment is directly carried out, the annealing temperature is 1020-1080 ℃, the annealing time is 2-3 minutes, and the continuous conveying speed of the wire is 3-5 m/s;
step 7-2): the second cold drawing, processing the diameter of the wire material to 2-2.5 mm, directly carrying out continuous vacuum annealing treatment, wherein the annealing temperature is 1020-1080 ℃, the annealing time is 1-2 minutes, and the continuous conveying speed of the wire material is 3-5 m/s;
step 7-3): thirdly, cold drawing, namely processing the diameter of the wire material to 1.2-1.4 mm, and continuously conveying the wire material at a speed of 3-5 m/s; and finally, winding the wire product into a roll, packaging and warehousing.
Further, carrying out room-temperature mechanical tensile property test on the high-temperature alloy cold drawn wire;
the cold drawn wire formed in the embodiment, the cold drawn wire formed in the embodiment and the cold drawn wire formed in the embodiment three are respectively subjected to room temperature mechanical tensile property test on a 30KN universal tensile testing machine, the total length of test samples is 100mm, the gauge length of the test samples is 30mm, and the loading speed is as follows: 2mm/min. Table 1 shows a comparison of cold drawn wire and room temperature tensile mechanical properties.
Table 1 shows the mechanical properties of cold drawn wire at room temperature
| Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | |
| Example 1 | 521 | 856 | 39.1 |
| Example two | 507 | 840 | 40.9 |
| Example III | 497 | 834 | 41.0 |
From the above table, it can be seen that: the ratio of Cr element in the high-temperature alloy cold drawn wire is in the range of 40-44%, the ratio of Ni element is in the range of 53-57%, and a slight increase in Cr content (decrease in Ni content) will result in a corresponding decrease in yield strength and tensile strength, while the elongation is slightly increased, but the overall performance of the alloy in the range of the alloy components is relatively stable.
As shown in fig. 1 and 2, the metallographic structure of the transverse section of the cold drawn wire is characterized by equiaxed grain, the structure is uniform, a large number of Luan Jing structures exist in the grains, and the grain size is 5-15 microns; the longitudinal section grains are elongated in the axial direction, and the length-width ratio is between 2 and 4.
The foregoing description is only illustrative of the invention and is not to be construed as limiting the invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present invention, should be included in the scope of the claims of the present invention.
Claims (9)
1. A novel superalloy material is characterized in that: the high-temperature alloy material comprises the following components in parts by mass: 48.5 to 58.5 percent of Ni, 40 to 45 percent of Cr, 1 to 4 percent of Cu, 0.5 to 2 percent of Ti, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P, and less than or equal to 0.5 percent of other impurity elements.
2. The novel superalloy material according to claim 1, wherein: the high-temperature alloy material comprises the following components in parts by mass: 56.8%, cr:40%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
3. The novel superalloy material according to claim 1, wherein: the high-temperature alloy material comprises the following components in parts by mass: 54.8%, cr:42%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
4. The novel superalloy material according to claim 1, wherein: the high-temperature alloy material comprises the following components in parts by mass: 52.8%, cr:44%, cu:2.5%, ti:0.5 percent, less than or equal to 0.06 percent of C, less than or equal to 0.025 percent of S, less than or equal to 0.025 percent of P.
5. A method of forming a novel superalloy material according to any of claims 1 to 4 wherein: the method comprises the following steps:
step 1): preparation of raw materials
Taking materials according to mass percentages;
step 2): vacuum smelting
Smelting the taken material in a vacuum induction furnace to form a blank, wherein the smelting temperature is 1350-1450 ℃; argon of 0.05Mpa is introduced in the smelting process;
step 3): electroslag remelting refining
Melting the blank by using resistance heat generated when current passes through slag, and solidifying and crystallizing to form a cylindrical ingot; refining temperature is 1250-1350 ℃; the slag comprises the following components: 60% CaF 2 -12％CaO-22％Al 2 O 3 -3％MgO-3％TiO 2 ；
Step 4): rolling into a circle
Carrying out continuous hot rolling on the cast ingot for 3-4 times;
step 5): annealing
Annealing the hot rolled coil at 1020-1080 ℃ for 4-6 hours;
step 6): acid washing
Carrying out acid washing treatment on the annealed wire rod;
step 7): cold drawn filament
Cold drawing the wire rod on a film coating machine, wherein the temperature of a wire drawing die is controlled to be 200-300 ℃; and finally, winding the wire product into a roll, packaging and warehousing.
6. The method for forming a novel superalloy material according to claim 5, wherein: the specific operation of the pickling treatment in the step 6) is as follows:
soaking in 45-57% concentration sulfuric acid solution for 8-12 hr, and bleaching with 3-6% concentration nitric acid solution; finally, the mixture is washed clean by hot water at 60-80 ℃.
7. The method for forming a novel superalloy material according to claim 5, wherein: the cold drawing into filaments in the step 7) specifically comprises the following steps:
step 7-1): the first cold drawing, the diameter of the wire is processed to 3.5-3.8 mm, continuous vacuum annealing treatment is directly carried out, the annealing temperature is 1020-1080 ℃, the annealing time is 2-3 minutes, and the continuous conveying speed of the wire is 3-5 m/s;
step 7-2): the second cold drawing, processing the diameter of the wire material to 2-2.5 mm, directly carrying out continuous vacuum annealing treatment, wherein the annealing temperature is 1020-1080 ℃, the annealing time is 1-2 minutes, and the continuous conveying speed of the wire material is 3-5 m/s;
step 7-3): and thirdly, cold drawing, namely processing the wire diameter to 1.2-1.4 mm, and continuously conveying the wire at a speed of 3-5 m/s.
8. The method for forming a novel superalloy material according to claim 5, wherein: and in the step 4), the cast ingot is subjected to 3-4 times of continuous hot rolling, the total diameter reduction rate of the outer diameter of the hot continuous rolling is 70% -85%, the rolling temperature is controlled at 1250-1350 ℃, the rolling speed is controlled at 20-30 m/s, and a disc with the diameter of 5.5-7 mm is formed.
9. The method for forming a novel superalloy material according to claim 5, wherein: carrying out surface phosphating treatment before cold drawing on the wire in the step 7) each time, and coating a lubricant on the surface; the lubricant is 80% zinc stearate and 20% lime powder.
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| JP2009256729A (en) * | 2008-04-17 | 2009-11-05 | Mitsubishi Materials Corp | Mold member for molding resin |
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| US4655857A (en) * | 1982-03-08 | 1987-04-07 | Tsuyoshi Masumoto | Ni-Cr type alloy material |
| CN1417359A (en) * | 2001-11-06 | 2003-05-14 | 北京有色金属研究总院 | High-chromium nickel-base alloy and produced spraying wire and its application |
| JP2009256729A (en) * | 2008-04-17 | 2009-11-05 | Mitsubishi Materials Corp | Mold member for molding resin |
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