CN111020245B - Preparation method of nickel-copper corrosion-resistant alloy - Google Patents
Preparation method of nickel-copper corrosion-resistant alloy Download PDFInfo
- Publication number
- CN111020245B CN111020245B CN201911031945.9A CN201911031945A CN111020245B CN 111020245 B CN111020245 B CN 111020245B CN 201911031945 A CN201911031945 A CN 201911031945A CN 111020245 B CN111020245 B CN 111020245B
- Authority
- CN
- China
- Prior art keywords
- nickel
- alloy
- vacuum
- percent
- 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
Classifications
-
- 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
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
-
- 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
-
- 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
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a preparation method of a nickel-copper corrosion-resistant alloy in the technical field of metallurgy, which comprises the steps of vacuum induction, electroslag remelting, vacuum self-consumption, material hot working, material heat treatment and the like. The method firstly adds proper Al and Ti elements in the alloy, not only maintains the original corrosion resistance, but also greatly increases the mechanical property, and the tensile strength can reach more than 1000 MPa. Vacuum self-consumption is added in the process, gas components and harmful elements in the alloy are further removed through the vacuum self-consumption, and helium cooling is carried out after solidification to form the nickel-copper alloy ingot with compact structure, no defect and uniform components. Compared with the traditional process, more than 98 percent of finished products of the nickel-copper corrosion-resistant alloy forged rods prepared by the process have no surface defects such as cracks and the like, good internal quality and no other defects.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a preparation method of a nickel-copper corrosion-resistant alloy.
Background
The high-performance corrosion-resistant alloy for the field of petroleum and natural gas exploration and exploitation can meet the requirements of deep sea and deep well oil and gas fields, has excellent comprehensive performances of mechanics, corrosion resistance and the like, and simultaneously has high-temperature and high-pressure H resistance2S、CO2And Cl. The high-performance corrosion-resistant alloy has high alloy content and serious segregation, particularly large-size products, the adoption of a common electroslag remelting process is easy to generate serious segregation, so that the structure is not uniform, a brittle phase is easy to separate out, particularly, the range of a hot processing temperature region is narrow, the high-temperature thermoplasticity is poor, cracks are easy to generate in the hot processing process, the hot processing yield is extremely low, and the yield of the high-performance corrosion-resistant alloy produced by the common electroslag remelting process is generally not more than 70%. Therefore, whether the smelting process is suitable for high-performance corrosion resistanceThe performance of gold has a great influence, but there are few reports on the preparation data of nickel-copper corrosion resistant alloy. The special technologies related to the nickel-copper corrosion resistant alloy mainly include the following items:
(1) ultrapure electroslag remelting method for CN102912151A high-performance corrosion-resistant alloy
The ultra pure electroslag remelting method of the high-performance corrosion-resistant alloy comprises the following steps of 1) preparing a self-melting electrode rod: the self-melting electrode rod comprises the following ingredients, by weight, 25-34 parts of Ni, 25-29 parts of Cr, 2.5-4.5 parts of Mo and 30-45 parts of Fe, and is cast into a round rod through vacuum induction melting, and the surface of the round rod is sanded and finished to prepare the self-melting electrode rod remelted by electroslag; 2) electroslag remelting: the slag material of electroslag remelting comprises CaF255 to 80 parts, 5 to 25 parts of CaO, A12035-15 parts of MgO, and 5-10 parts of slag materials remelted by the electroslag are heated in a crystallizer to a molten state, and the crystallizer needs to be cooled to play a role in protection during heating. The invention adopts water cooling, namely, the crystallizer and the bottom plate are both cooled by water. Slowly descending the self-melting electrode bar prepared in the step into molten electroslag remelting slag, electrifying for arcing, and adjusting remelting voltage to: 50-65V, current: 12500-14500A; after the self-melting electrode bar is slowly melted, liquid drops of the self-melting electrode bar penetrate through a melted slag material layer to react with slag materials, are purified and are recrystallized at the bottom of the crystallizer to obtain an electroslag ingot; the electroslag ingot is kept warm for 5 hours at the temperature of 1130 ℃ and 50 ℃, forged into a bar material, the bar material is prepared into a plate blank or a tube blank, and the solution treatment is carried out for 25 hours at the temperature of 1130 ℃ and 50 ℃, so as to obtain the high-performance corrosion-resistant alloy.
(2) CN105714152A nickel-based corrosion-resistant alloy and preparation method thereof
The nickel-based corrosion-resistant alloy comprises, by mass, 0-0.02% of C, 29.0-31.0% of Cr, 9.0-11.0% of Fe, 0.3-1.0% of V, 0-l.0% of Nb, 0-0.3% of Ti, 0-0.4% of Al, 0-0.3% of Si, 0-0.3% of Mn, and the balance of Ni and inevitable impurities, wherein (Nb + V)/C is not less than 30, the nickel-based corrosion-resistant alloy is smelted by a vacuum induction and electroslag remelting smelting process, the alloy is forged and rolled into a plate, solid solution treatment is performed at 1050-1150 ℃ for 0.5-3 min/mm, and then desensitization heat treatment is performed at 800-1000 ℃ for 1-3.5 h. The nickel-based corrosion-resistant alloy has higher crystal corrosion resistance.
The method describes a vacuum induction and electroslag remelting process, but does not relate to the application of a vacuum consumable process. The produced corrosion-resistant alloy is nickel-based alloy and does not contain copper. The research of the patent is different in the preparation of the nickel-copper corrosion resistant alloy and the operation process.
Disclosure of Invention
In order to overcome the defects of low yield and the like of the nickel-copper corrosion-resistant alloy prepared by the prior art, the invention aims to solve the technical problems that: provides a preparation method of the nickel-copper corrosion-resistant alloy with good surface and internal quality and high yield of the forged rod.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the preparation method of the nickel-copper corrosion-resistant alloy comprises the following steps:
a. vacuum induction:
the method comprises the following steps of putting alloy raw materials except Al and Ti into a crucible according to a component proportion, putting the crucible into a vacuum induction furnace, vacuumizing, electrifying for melting, measuring the oxygen content of molten liquid after the raw materials are completely melted, adding Al and Ti after the oxygen content is lower than 20ppm, carrying out component detection and fine adjustment on the components of the molten liquid before tapping, tapping and casting the molten liquid into an ingot after the components are qualified, and polishing and finishing the surface of the ingot to obtain an electrode rod required by electroslag remelting;
b. electroslag remelting:
slag of electroslag remelting adopts a ternary slag system, and the specific proportion is CaO: 10% -30% of Al2O3：5％～15％，CaF2: 65% -75%, after graphite electrodes are electrified, slag is melted, electrode rods required by electroslag remelting are switched, after electrification and arcing, voltage is adjusted to 37V-41V, current is 8200A-10000A, water flow is controlled to be 600L/min-800L/min, melting speed is 5.5 Kg/min-7.5 Kg/min, when the electrodes are melted to form molten drops which penetrate through the slag layer and react with the molten drops, redundant harmful impurities in the electrode rods are removed, finally the molten drops are crystallized and solidified under the cooling effect of a crystallizer, and quality combination is obtained after demoldingGrinding and finishing the surface of the electroslag ingot to prepare an electrode rod required by vacuum self-consumption;
c. vacuum self-consumption:
controlling the vacuum degree of the vacuum consumable furnace at 1 × 10-2Electrifying an electrode bar prepared by electroslag remelting after the pressure is lower than Pa, regulating the working current to 20-45V and 8000-9000A, controlling the melting speed to 3-4 kg/min, further removing gas components and harmful elements in the alloy through vacuum self-consumption, cooling with helium after solidification to form a nickel-copper alloy ingot compact in structure, free of defects and uniform in components, and quickly releasing the ingot to a heating furnace after demolding;
d. hot processing of the material:
the temperature of the heating furnace is controlled between 870 ℃ and 1150 ℃, and the strain rate of material processing is controlled at 0.1s-1～0.5s-1；
e. Material heat treatment:
the alloy part is subjected to solution treatment, then is annealed, and finally is quenched and cooled.
Further, in the vacuum induction stage, the vacuum induction furnace is vacuumized to be less than 1 Pa.
Further, during the thermal processing of the material, if a short residence time occurs, the material is first reduced to 1040 ℃ and then heated to 1150 ℃ before processing, until the material is fully temperature uniform, and then removed quickly.
Further, in the heat treatment stage of the material, the solution treatment process is to heat the material to 980-1038 ℃ and then preserve the heat, and the heat preservation time is controlled within 30 min.
Further, for the subsequent materials needing to be machined, annealing and softening are carried out on the materials, the annealing temperature is controlled to be 760-870 ℃, and the heat preservation time is 1-1.5 h.
The invention has the beneficial effects that: the method comprises the steps of firstly, adding proper Al and Ti elements into the alloy, keeping the original corrosion resistance, greatly increasing the mechanical property, enabling the tensile strength to reach more than 1000MPa, increasing vacuum self-consumption in the process, further removing gas components and harmful elements in the alloy through the vacuum self-consumption, performing helium cooling after solidification, and forming the nickel-copper alloy cast ingot with compact structure, no defect and uniform components.
Detailed Description
The present invention will be further described with reference to the following examples.
The technical problem to be solved by the invention is to provide a preparation method of the nickel-copper corrosion-resistant alloy, and the internal quality and the external surface quality of the nickel-copper corrosion-resistant alloy forged rod can be effectively controlled by the control method. The invention is suitable for preparing the nickel-copper corrosion-resistant alloy forged rod, and the main components of the nickel-copper corrosion-resistant alloy forged rod are as follows: less than or equal to 0.3 percent of carbon, less than or equal to 0.5 percent of silicon, less than or equal to 1.60 percent of manganese, less than or equal to 0.005 percent of phosphorus, less than or equal to 0.005 percent of sulfur, 0.30 to 0.90 percent of titanium, 2.30 to 3.15 percent of aluminum, 27 to 33 percent of copper, and the balance of nickel and impurities. The preparation process comprises the following steps:
a. vacuum induction:
the method comprises the following steps of putting alloy raw materials except Al and Ti into a crucible according to a component proportion, putting the crucible into a vacuum induction furnace, vacuumizing, electrifying for melting, measuring the oxygen content of molten liquid after the raw materials are completely melted, adding Al and Ti after the oxygen content is lower than 20ppm, carrying out component detection and fine adjustment on the components of the molten liquid before tapping, tapping and casting the molten liquid into an ingot after the components are qualified, and polishing and finishing the surface of the ingot to obtain an electrode rod required by electroslag remelting;
b. electroslag remelting:
slag of electroslag remelting adopts a ternary slag system, and the specific proportion is CaO: 10% -30% of Al2O3：5％～15％，CaF2: 65% -75%, after graphite electrodes are electrified, slag is melted, electrode rods required by electroslag remelting are switched, after electrification and arcing, voltage is adjusted to 37V-41V, current is 8200A-10000A, water flow is controlled to be 600L/min-800L/min, melting speed is 5.5 Kg/min-7.5 Kg/min, when the electrodes are melted to form molten drops which penetrate through a slag layer and react with the molten drops, redundant harmful impurities in the electrode rods are removed, finally the molten drops are crystallized and solidified under the cooling effect of a crystallizer, and electroslag ingots with qualified quality are obtained after demoldingPolishing and finishing the surface of the electroslag ingot to prepare an electrode rod required by vacuum self-consumption;
c. vacuum self-consumption:
controlling the vacuum degree of the vacuum consumable furnace at 1 × 10-2Electrifying an electrode bar prepared by electroslag remelting after the pressure is lower than Pa, regulating the working current to 20-45V and 8000-9000A, controlling the melting speed to 3-4 kg/min, further removing gas components and harmful elements in the alloy through vacuum self-consumption, cooling with helium after solidification to form a nickel-copper alloy ingot compact in structure, free of defects and uniform in components, and quickly releasing the ingot to a heating furnace after demolding;
d. hot processing of the material:
the temperature of the heating furnace is controlled between 870 ℃ and 1150 ℃, and the strain rate of material processing is controlled at 0.1s-1～0.5s-1；
e. Material heat treatment:
the alloy part is subjected to solution treatment, then is annealed, and finally is quenched and cooled.
In addition to the main parameters mentioned above, there are further process improvements as follows:
in the vacuum induction stage, the vacuum of the vacuum induction furnace is required to be less than 1 Pa.
In the stage of material hot processing, the maximum temperature should not exceed 1150 ℃, if short-time detention occurs, the material is recommended to be firstly reduced to 1040 ℃, and then heated to 1150 ℃ before processing, and the material is taken out quickly until the temperature of the material is uniform; for a common forging, the hot working temperature is 870-1150 ℃, and the working temperature of a large forging is 1040-1150 ℃; to obtain finer grains, it is recommended that the final firing temperature be 1090 ℃ and that the final forging be at least 30%.
In the heat treatment stage of the material, the solution treatment is generally to heat the material to about 980 ℃ and the cold-worked product to about 1038 ℃. To avoid excessive grain growth, the incubation time should be kept to a minimum, typically not more than 30 minutes. The heating and cooling time must be kept to a minimum to avoid precipitation of the deleterious phases.
During the machining production and subsequent forming of nickel-copper alloy products, an intermediate process anneal may be required to soften the product. It is generally possible to operate between 760 ℃ and 870 ℃ because of the static recrystallization behaviour of the alloy at this temperature. During the annealing, after the alloy is held for one hour at a set temperature and after equilibration, the softening of the alloy is guaranteed to proceed smoothly during the process, but annealing times exceeding 1.5 hours are not recommended. However, if titanium carbide is formed by mishandling, it is recommended that the alloy be heated to 1120 ℃ for a solution treatment of at least 30 minutes, but heat treatment in this manner results in larger grain sizes, which may affect formability to some extent. However, if the product is to have sufficient hardness and strength during aging, high temperature solution treatment is necessary.
The nickel-copper corrosion resistant alloy forged rod produced by the method has more than 98 percent of finished products without surface defects such as cracks and the like, good internal quality and no other defects. This is further illustrated by the following specific examples.
The first embodiment is as follows:
in the embodiment, the method implemented by the invention is used for preparing the nickel-copper corrosion-resistant alloy forged rod with the phi of 380 mm. Alloy raw materials are loaded into a crucible according to the composition proportion, a vacuum induction furnace is vacuumized to be less than 1Pa for heating, the proportioned Al and Ti are added when the oxygen content is less than 20ppm, after the components are qualified, tapping is carried out, a 360 mm-phi cast ingot is cast, and then the cast ingot is polished to be made into an electrode rod required by electroslag remelting.
In the electroslag remelting process, slag of the electroslag remelting adopts a ternary slag system, and the proportion of the slag system is CaO: 20% of Al2O3：10％，CaF270 percent, after electrifying and arcing, the voltage is adjusted to 40V, the current is 9000A, the water flow is controlled to 680L/min, the melting speed is controlled to 5.5Kg/min, and the water flow is controlled to 700L/min. And (3) obtaining an electroslag ingot with the phi of 410mm after demoulding, and polishing and finishing the surface of the electroslag ingot to obtain the electrode rod required by vacuum self-consumption.
In the process of vacuum self-consumption, the vacuum degree of the vacuum self-consumption furnace is controlled at 1 x 10-2After the pressure is lower than Pa, electrifying the electrode rod prepared by electroslag remelting, adjusting the working current to 40V and 8500A, controlling the melting speed to 3.5kg/min, and passing throughFurther removing gas components and harmful elements in the alloy by vacuum self-consumption, cooling with helium after solidification, preparing into phi 450mm after demolding, and rapidly placing into a heating furnace.
The heating temperature of the heating furnace is 1150 ℃, and the temperature is kept for 3h to ensure that the internal temperature and the external temperature of the material are uniform. The hot working temperature should be 1100 deg.C, the last fire temperature at 1050 deg.C, and the strain rate of material processing 0.3s-1To make a forged rod with phi 380mm
In the mechanical processing production and the subsequent forming process of the nickel-copper alloy product, the product is softened by intermediate process annealing at 800 ℃. The annealing time was 1 h. Finally, qualified products are prepared.
The continuous casting billet produced by the method has no surface and subcutaneous defects. The internal quality is good: the central porosity is 0 grade, the central shrinkage cavity is 0 grade, the range of internal and external crystal grains is not more than 2 grade, no other defects exist, and the average corrosion rate is not more than 0.03 mm/year in the seawater service environment.
Example two:
in the embodiment, the method implemented by the invention is used for preparing the Ni-Cu corrosion-resistant alloy forged rod with the diameter of 250 mm. Alloy raw materials are loaded into a crucible according to the composition proportion, a vacuum induction furnace is vacuumized to less than 1Pa for heating, the proportioned Al and Ti are added when the oxygen content is less than 15ppm, tapping can be carried out and cast into a phi 210mm ingot after the components are qualified, and then the ingot is polished to prepare the electrode rod required by electroslag remelting.
In the electroslag remelting process, slag of the electroslag remelting adopts a ternary slag system, and the proportion of the slag system is CaO: 15% of Al2O3：10％，CaF275 percent, after electrifying and arcing, the voltage is adjusted to 35V, the current is 8000A, the water flow is controlled to be 650L/min, the melting speed is controlled to be 3.8Kg/min, and the water flow is controlled to be 650L/min. And (3) obtaining an electroslag ingot with the phi of 280mm and qualified quality after demoulding, and polishing and finishing the surface of the electroslag ingot to obtain the electrode rod required by vacuum self-consumption.
In the process of vacuum self-consumption, the vacuum degree of the vacuum self-consumption furnace is controlled to be 5 multiplied by 10-3After the pressure is lower than Pa, electrifying the electrode rod prepared by electroslag remelting, adjusting the working current to 35V and 8500A, controlling the melting speed to 3.5kg/min, and passing through a vacuum furnaceFurther removing gas components and harmful elements in the alloy by using the air-to-air self-consumption, cooling with helium after solidification, preparing into phi 320mm after demolding, and quickly placing into a heating furnace.
The heating temperature of the heating furnace is 1100 ℃, and the internal temperature and the external temperature of the material are uniform after heat preservation for 2 hours. The hot working temperature should be 1100 deg.C, the last fire temperature at 1050 deg.C, and the strain rate of material processing 0.1s-1Making into forged rod of phi 250mm
In the mechanical processing production and the subsequent forming process of the nickel-copper alloy product, the product is softened by intermediate process annealing at 800 ℃. The annealing time was 1 h. Finally, qualified products are prepared.
The continuous casting billet produced by the method has no surface and subcutaneous defects. The internal quality is good: the central porosity is 0 grade, the central shrinkage cavity is 0 grade, the range of internal and external crystal grains is not more than 1 grade, no other defects exist, and the average corrosion rate is not more than 0.03 mm/year in the seawater service environment.
Claims (5)
1. The preparation method of the nickel-copper corrosion-resistant alloy is characterized in that the nickel-copper corrosion-resistant alloy comprises the following components in percentage by mass: less than or equal to 0.3 percent of carbon, less than or equal to 0.5 percent of silicon, less than or equal to 1.60 percent of manganese, less than or equal to 0.005 percent of phosphorus, less than or equal to 0.005 percent of sulfur, 0.30 to 0.90 percent of titanium, 2.30 to 3.15 percent of aluminum, 27 to 33 percent of copper, and the balance of nickel and impurities, wherein the preparation process comprises the following steps:
a. vacuum induction:
the method comprises the following steps of putting alloy raw materials except Al and Ti into a crucible according to a component proportion, putting the crucible into a vacuum induction furnace, vacuumizing, electrifying for melting, measuring the oxygen content of molten liquid after the raw materials are completely melted, adding Al and Ti after the oxygen content is lower than 20ppm, carrying out component detection and fine adjustment on the components of the molten liquid before tapping, tapping and casting the molten liquid into an ingot after the components are qualified, and polishing and finishing the surface of the ingot to obtain an electrode rod required by electroslag remelting;
b. electroslag remelting:
slag of electroslag remelting adopts a ternary slag system, and the specific proportion is CaO: 10% -30% of Al2O3：5％～15％，CaF2: 65% -75%, melting the slag charge after electrifying with graphite electrodeThen, switching electrode bars required by electroslag remelting, electrifying to generate arc, adjusting the voltage to 37-41V, adjusting the current to 8200-10000A, controlling the water flow to 600-800L/min, and the melting speed to 5.5-7.5 Kg/min, when the electrodes are melted to form molten drops which penetrate through a slag layer and react with the molten drops, removing redundant harmful impurities in the electrode bars, finally crystallizing and solidifying the molten drops under the cooling action of a crystallizer, obtaining electroslag ingots with qualified quality after demolding, and polishing and finishing the surfaces of the electroslag ingots to obtain the electrode bars required by vacuum self-consumption;
c. vacuum self-consumption:
controlling the vacuum degree of the vacuum consumable electrode furnace at 1 x 10-2Electrifying an electrode bar prepared by electroslag remelting after the pressure is lower than Pa, regulating the working current to 20-45V and 8000-9000A, controlling the melting speed to 3-4 kg/min, further removing gas components and harmful elements in the alloy through vacuum self-consumption, cooling with helium after solidification to form a nickel-copper alloy ingot compact in structure, free of defects and uniform in components, and quickly releasing the ingot to a heating furnace after demolding;
d. hot processing of the material:
the temperature of the heating furnace is controlled between 870 ℃ and 1150 ℃, and the strain rate of material processing is controlled at 0.1s-1～0.5s-1；
e. Material heat treatment:
the alloy part is subjected to solution treatment, then is annealed, and finally is quenched and cooled.
2. The method of claim 1, wherein the nickel-copper corrosion resistant alloy is prepared by: in the vacuum induction stage, the vacuum induction furnace is vacuumized to be less than 1 Pa.
3. The method of claim 1, wherein the nickel-copper corrosion resistant alloy is prepared by: in the stage of hot working of the material, if a short residence time occurs, the material is first reduced to 1040 ℃ and then heated to 1150 ℃ before working, until the material is completely uniform in temperature and then taken out quickly.
4. The method of claim 1, wherein the nickel-copper corrosion resistant alloy is prepared by: in the heat treatment stage of the material, the solution treatment process is to heat the material to 980-1038 ℃ and then preserve heat, and the heat preservation time is controlled within 30 min.
5. The method of claim 1, wherein the nickel-copper corrosion resistant alloy is prepared by: and for the subsequent materials needing to be machined, annealing and softening the materials, wherein the annealing temperature is controlled to be 760-870 ℃, and the heat preservation time is 1-1.5 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031945.9A CN111020245B (en) | 2019-10-28 | 2019-10-28 | Preparation method of nickel-copper corrosion-resistant alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911031945.9A CN111020245B (en) | 2019-10-28 | 2019-10-28 | Preparation method of nickel-copper corrosion-resistant alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111020245A CN111020245A (en) | 2020-04-17 |
| CN111020245B true CN111020245B (en) | 2021-05-28 |
Family
ID=70200134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911031945.9A Active CN111020245B (en) | 2019-10-28 | 2019-10-28 | Preparation method of nickel-copper corrosion-resistant alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111020245B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111394590B (en) * | 2020-04-07 | 2021-08-03 | 中国航发北京航空材料研究院 | Vacuum consumable remelting method for wrought superalloy GH4169 |
| CN111961919A (en) * | 2020-08-04 | 2020-11-20 | 钢铁研究总院 | Nickel-copper alloy bar for ship and processing method thereof |
| CN112981056B (en) * | 2021-02-08 | 2022-04-12 | 南昌大学 | Preparation method of modified 904L alloy applied to oxygen-containing high-temperature chlorine corrosion environment |
| CN117305611B (en) * | 2023-11-27 | 2024-03-26 | 成都先进金属材料产业技术研究院股份有限公司 | Nickel-copper alloy electroslag remelting method |
| CN117340173B (en) * | 2023-12-06 | 2024-03-08 | 成都先进金属材料产业技术研究院股份有限公司 | Method for inhibiting cracking in nickel-copper alloy forging process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6416564B1 (en) * | 2001-03-08 | 2002-07-09 | Ati Properties, Inc. | Method for producing large diameter ingots of nickel base alloys |
| TWI518183B (en) * | 2015-02-04 | 2016-01-21 | China Steel Corp | Corrosion resistant high nickel alloy and its manufacturing method |
| CN106319255B (en) * | 2015-07-06 | 2018-09-21 | 中国科学院金属研究所 | The sublimate smelting process of nickel base superalloy |
| CN106119666A (en) * | 2016-06-22 | 2016-11-16 | 陈林美 | A kind of high-strength nickel Cu alloy material and preparation method thereof |
| CN109207793A (en) * | 2018-10-19 | 2019-01-15 | 扬州丰铜业有限公司 | A kind of nickel-copper alloy material and its preparation process |
-
2019
- 2019-10-28 CN CN201911031945.9A patent/CN111020245B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111020245A (en) | 2020-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111020245B (en) | Preparation method of nickel-copper corrosion-resistant alloy | |
| CN113025865B (en) | Preparation method of AlCoCrFeNi series two-phase structure high-entropy alloy | |
| CN111519068B (en) | Triple smelting process of difficult-deformation nickel-based high-temperature alloy GH4151 | |
| CN110408803B (en) | Purification smelting method for nickel-based high-temperature alloy master alloy | |
| CN114457270B (en) | L1 2 Medium-entropy alloy with strong particle plasticization and preparation method thereof | |
| CN100343411C (en) | Steel for processing movement limiting core stick of continuous tube grimper and its producing process | |
| CA2771264A1 (en) | Method for producing large diameter ingots of nickel base alloys | |
| CN102925712A (en) | Electroslag remelting method for difficult-processing high alloy stainless steel and electroslag remelting slag system adopting electroslag remelting method | |
| CN105803280A (en) | Damage resisting tolerance high-strength aluminum alloy plate and preparation method thereof | |
| CN113846247A (en) | W-Mo-Co reinforced high-temperature alloy hot-rolled bar and preparation method thereof | |
| CN112746176B (en) | Method for controlling trace element distribution in ESR cast ingot and application thereof | |
| CN104404356B (en) | A kind of return material method of smelting of impeller martensitic stain less steel | |
| CN113234964B (en) | Nickel-based corrosion-resistant alloy and processing method thereof | |
| CN110423928B (en) | High-strength flame-retardant magnesium alloy | |
| CN113502423B (en) | High-plasticity and high-strength cast beryllium-aluminum alloy and preparation method thereof | |
| CN112322987B (en) | Ultrahigh-strength steel wire for electric arc additive manufacturing and preparation method | |
| CN114807646A (en) | Nickel-based alloy plate blank and preparation method thereof | |
| CN108165780A (en) | A kind of preparation method of Ni-Cr-Al-Fe systems high temperature alloy | |
| CN112553486A (en) | Smelting process for improving quality of nickel ingot | |
| TWI557244B (en) | Method of fabricating corrosion-resistant high nickel alloy | |
| CN112575224B (en) | high-Si-content nickel-copper-containing corrosion-resistant alloy and preparation method thereof | |
| CN115233012B (en) | Manufacturing method of nickel-based superalloy hot rolled plate | |
| CN113862511B (en) | Cu-Ni-Mn-P alloy and preparation method thereof | |
| CN111187930B (en) | Method for improving intermetallic compound in casting alloy | |
| JP2018135579A (en) | Structural aluminium alloy material |
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 | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319 Patentee after: Chengdu advanced metal material industry technology Research Institute Co.,Ltd. Address before: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319 Patentee before: CHENGDU ADVANCED METAL MATERIAL INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Tingyao Inventor after: Zheng Wenjie Inventor after: Fang Die Inventor after: Zhang Jian Inventor after: Lai Yu Inventor after: Fu Jianhui Inventor after: Zhu Yuliang Inventor before: Liu Tingyao Inventor before: Zhang Jian Inventor before: Lai Yu Inventor before: Fu Jianhui |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221008 Address after: 100081 No. 76 South College Road, Beijing, Haidian District Patentee after: General Iron and Steel Research Institute Co.,Ltd. Patentee after: Chengdu advanced metal material industry technology Research Institute Co.,Ltd. Patentee after: PANGANG GROUP JIANGYOU CHANGCHENG SPECIAL STEEL Co.,Ltd. Address before: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319 Patentee before: Chengdu advanced metal material industry technology Research Institute Co.,Ltd. |