CN109371340A - Wrought superalloy production technology - Google Patents
Wrought superalloy production technology Download PDFInfo
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- CN109371340A CN109371340A CN201811489051.XA CN201811489051A CN109371340A CN 109371340 A CN109371340 A CN 109371340A CN 201811489051 A CN201811489051 A CN 201811489051A CN 109371340 A CN109371340 A CN 109371340A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/08—Iron group metals
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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- 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
Abstract
The invention discloses a kind of wrought superalloy production technologies, include the following steps: step S1, alloy raw material pretreatment；Step S2: the melting in vaccum sensitive stove；Step S3: electroslag remelting is carried out；Step S4: vacuum consumable remelting is carried out；Step S5: High temperature diffusion homogenizing annealing is carried out；Step S6: required bar is squeezed on extruder；Step S7: sample is cut using wire cutting mode, and sample is heat-treated；Step S8: pre-oxidation treatment.The present invention ensures that alloy obtains good comprehensive performance by the specific rational proportion of each alloying element, and compared with existing alloy, the wrought superalloy processed has the advantage that include: excellent processability；Higher mechanical behavior under high temperature and structure stability；With excellent antioxygenic property；Processing technology total production cost of the invention is low, can satisfy the low cost manufacturing requirement of aero-engine turbine disk, and with good economic efficiency and social benefit is suitble to promote the use of.
Description
Technical field
The invention belongs to technical field of metal material, and in particular, to a kind of wrought superalloy production technology.
Background technique
High temperature alloy is opposite stainless steel, for heat resisting steel, and it is high to pass through addition multiple element alloying level, Neng Gou
A kind of material of about 600 DEG C or more hot environment long-term works.High temperature alloy divides mainly according to matrix nickel-base high-temperature conjunction
Gold, iron-base superalloy and cobalt base superalloy are generally divided into three classes, including wrought superalloy, casting height by forming technology
Temperature alloy and powder metallurgy high-temperature alloy.Ni-base wrought superalloy has become aero-engine turbine disk, compressor disc etc. and turns
The indispensable critical material of dynamic component.GH4169 is a kind of ni-base wrought superalloy for the use of temperature being 650 DEG C.With height
Push away the development than aero-engine, turbine inlet temperature (TIT) is higher and higher, correspondingly, to the elevated temperature strength of turbine disk high temperature alloy,
The requirement of the high temperature mechanical performance index such as heat resistance is also higher and higher.Although (for example FGH4097 is closed powder metallurgy high-temperature alloy
Gold) be the following height push away than engine turbine disk manufacture a kind of selection consider scheme, still, due to powder metallurgy complex procedures,
Process flow is long, thus opposite casting+forging deformation process route manufacture wrought superalloy turbine disk high production cost.Root
From the point of view of the progress in recent years to turbine disk high temperature alloy, height is prepared using the cast forging process technology of short route low cost
Performance wrought superalloy is the direction given priority to from now on both at home and abroad and trend.Therefore, it is necessary to develop a kind of elevated temperature strength ratio
GH4169 alloy is higher, with the comparable high-strength deformation high temperature alloy of powder metallurgy superalloy (such as FGH4097) comprehensive performance, with full
The use demand and low cost manufacturing requirement for the aero-engine turbine disk that foot more strong mechanical performance requires.
Summary of the invention
The purpose of the present invention is to provide a kind of wrought superalloy production technologies, pass through the specific conjunction of each alloying element
Reason proportion ensures that alloy obtains good comprehensive performance, compared with existing alloy, wrought superalloy that the present invention processes
Have the advantage that include: excellent processability；Higher mechanical behavior under high temperature and structure stability；With excellent antioxygen
Change performance；Processing technology total production cost of the invention is low, can satisfy the low cost manufacturing of the advanced aero engine turbine disk
It is required that with good economic efficiency and social benefit, is suitble to promote the use of.
The purpose of the present invention can be achieved through the following technical solutions:
Wrought superalloy production technology, includes the following steps:
Step S1, alloy raw material pre-processes: according to 2-3 parts of following parts by weight molybdenum, 40-50 parts of nickel, 5-8 parts of aluminium, yttrium oxide
0.5-1 parts, 0.2-0.3 parts of lanthana, 0.1-0.2 parts of chopped carbon fiber weigh each alloy raw material, and alloy raw material carried out pre-
Mixed processing；
Step S2: alloyage, the then melting in vaccum sensitive stove are matched by above-mentioned element, fusion process controls fine melt
Temperature: 1530 DEG C -1580 DEG C；Control liquid steel refining temperature: 1500 DEG C -1570 DEG C；Solution, is poured into conjunction by the tapping of melting latter stage
Gold electrode；
Step S3: alloy electrode obtained in step S2 is subjected to electroslag remelting, remelting is at ESR ingot；Electroslag remelting uses
Pre-melted slag, the quality proportioning of slag system are Al2O3: TiO2: CaO:MgO=20:10:2.8:5；
Step S4: ESR ingot obtained in step S3 is subjected to vacuum consumable remelting, obtains consumable ingot；Vacuum consumable remelting
When, controlling molten speed is 2.5-3.5Kg/min；
Step S5: consumable ingot obtained in step S4 is subjected to High temperature diffusion homogenization within the scope of 1175 DEG C -1185 DEG C
Annealing obtains homogenizing annealing ingot；
Step S6: being heated to 1140 DEG C -1165 DEG C for homogenizing annealing ingot obtained in step S5, keep the temperature 3-4h, is squeezing
Required bar is squeezed on press；
Step S7: cutting sample using wire cutting mode to the head of bar obtained in step S6, and to sample heat at
Reason, sample system of heat treatment process are as follows: 1050 DEG C are heated to, 4h is kept the temperature, oil is cooled to room temperature, sample is then heated to 750 DEG C,
8h is kept the temperature, room temperature is air-cooled to, obtains wrought superalloy bar；
Step S8: by wrought superalloy bar under the conditions of 1000 DEG C of temperature pre-oxidation treatment 1h, cool to the furnace
Room temperature.
Further, the detailed process of processing is premixed in step S1 are as follows:
1) each alloy raw material is placed in acetone and impregnates 30-40min, taken out, with washes of absolute alcohol 2-3 times, then be placed in
Dry 3-4h, removes the spot and impurity of alloy surface in 70 DEG C of baking oven；
2) first by the mixing tank of ball mill and ball with washes of absolute alcohol 2-3 times, then dry 3- is placed in 70 DEG C of baking oven
4h, to prevent there is impurity to pollute alloy；
3) weighed each raw alloy being put into ball mill, revolving speed is set as 150r/min, and mixing time is 5 hours,
Ratio of grinding media to material is 1:1；
4) after mixing process, powder is taken out, crosses 300 meshes, completes the pretreatment to alloy.
Further, the rated pressure of extruder described in step S6 is 4500T.
Beneficial effects of the present invention:
The present invention is added to micro chopped carbon fiber and lanthana in alloy raw material, and CFs is to matrices of composite material alloy
Dislocation when plastic deformation is mobile to have strong pinning effect, causes in fibril aggregation area that there are higher dislocation density and energy
Amount, plays facilitation to the dynamic recrystallization forming core of fiber near zone matrix alloy, to play to basis material good
Good strengthening effect, furthermore it is brilliant to further suppress the new forming core of matrix alloy dynamic recrystallization by the CFs of solid netted intersection construction
The growth process of grain, so that dual refined matrix alloy recrystal grain tissue；Crystalline substance of the lanthanum oxide doping to phase each in alloy
Particle size has apparent refining effect, and more tiny crystal grain not only increases the extensions path of crackle, but also crackle is extending
In the process, the probability for meeting with toughness phase α-Mo is bigger, bridges mechanism by crackle, the energy of crackle is released, to improve
The toughness of alloy；
The present invention has carried out pre-oxidation treatment to the alloy surface after processing, and 1000 DEG C of pre-oxidation treatment is easier quickly
Alloy surface is promoted to be pre-formed answering for finer and close, stable protectiveness aluminum oxide oxidation film and a small amount of spinel structure
Oxide is closed, alloy surface defect is less, and crystallite dimension is most thin and is tightly combined, and prevents the further progress of oxidation, reduces
The oxidation rate of alloy, to effectively improve the high-temperature oxidation resistance of alloy；
The present invention ensures that alloy obtains good comprehensive performance by the specific rational proportion of each alloying element, and existing
Alloy is compared, and the wrought superalloy that the present invention processes has the advantage that include: excellent processability；Higher height
Warm mechanical property and structure stability；With excellent antioxygenic property；Processing technology total production cost of the invention is low, can be with
Meet the low cost manufacturing requirement of the advanced aero engine turbine disk, with good economic efficiency and social benefit is suitble to push away
It is wide to use.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with embodiment, it is clear that described reality
Applying example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiment obtained without creative efforts belongs to what the present invention protected
Range.
Wrought superalloy production technology, includes the following steps:
Step S1, alloy raw material pre-processes: according to 2-3 parts of following parts by weight molybdenum, 40-50 parts of nickel, 5-8 parts of aluminium, yttrium oxide
0.5-1 parts, 0.2-0.3 parts of lanthana, 0.1-0.2 parts of chopped carbon fiber weigh each alloy raw material, and alloy raw material carried out pre-
Mixed processing；
Detailed process are as follows:
1) each alloy raw material is placed in acetone and impregnates 30-40min, taken out, with washes of absolute alcohol 2-3 times, then be placed in
Dry 3-4h, removes the spot and impurity of alloy surface in 70 DEG C of baking oven；
2) first by the mixing tank of ball mill and ball with washes of absolute alcohol 2-3 times, then dry 3- is placed in 70 DEG C of baking oven
4h, to prevent there is impurity to pollute alloy；
3) weighed each raw alloy being put into ball mill, revolving speed is set as 150r/min, and mixing time is 5 hours,
Ratio of grinding media to material is 1:1；
4) after mixing process, powder is taken out, crosses 300 meshes, completes the pretreatment to alloy；
Dislocation when CFs is to matrices of composite material alloy plastic deformation is mobile with strong pinning effect, causes fiber
There are higher dislocation density and energy in accumulation regions, play rush to the dynamic recrystallization forming core of fiber near zone matrix alloy
Into effect, to play good strengthening effect to basis material, furthermore the CFs of solid netted intersection construction is further suppressed
The growth process of the new forming core crystal grain of matrix alloy dynamic recrystallization, so that dual refined matrix alloy recrystal grain group
It knits；Lanthanum oxide doping has apparent refining effect to the crystallite dimension of phase each in alloy, and more tiny crystal grain, which not only increases, to be split
The extensions path of line passes through crackle bridge machine but also crackle, in expansion process, the probability for meeting with toughness phase α-Mo is bigger
System, releases the energy of crackle, to improve the toughness of alloy；
Step S2: alloyage, the then melting in vaccum sensitive stove are matched by above-mentioned element, fusion process controls fine melt
Temperature: 1530 DEG C -1580 DEG C；Control liquid steel refining temperature: 1500 DEG C -1570 DEG C；Solution, is poured into conjunction by the tapping of melting latter stage
Gold electrode；
Step S3: alloy electrode obtained in step S2 is subjected to electroslag remelting, remelting is at ESR ingot；Electroslag remelting uses
Pre-melted slag, the quality proportioning of slag system are Al2O3: TiO2: CaO:MgO=20:10:2.8:5；
Step S4: ESR ingot obtained in step S3 is subjected to vacuum consumable remelting, obtains consumable ingot；Vacuum consumable remelting
When, controlling molten speed is 2.5-3.5Kg/min；
Step S5: consumable ingot obtained in step S4 is subjected to High temperature diffusion homogenization within the scope of 1175 DEG C -1185 DEG C
Annealing obtains homogenizing annealing ingot；
Step S6: being heated to 1140 DEG C -1165 DEG C for homogenizing annealing ingot obtained in step S5, keep the temperature 3-4h, is squeezing
Required bar is squeezed on press；
The rated pressure of the extruder is 4500T；
Step S7: cutting sample using wire cutting mode to the head of bar obtained in step S6, and to sample heat at
Reason, sample system of heat treatment process are as follows: 1050 DEG C are heated to, 4h is kept the temperature, oil is cooled to room temperature, sample is then heated to 750 DEG C,
8h is kept the temperature, room temperature is air-cooled to, obtains wrought superalloy bar；
Step S8: by wrought superalloy bar under the conditions of 1000 DEG C of temperature pre-oxidation treatment 1h, cool to the furnace
Room temperature；
The easier alloy surface that rapidly promotes of 1000 DEG C of pre-oxidation treatment is pre-formed finer and close, stable protectiveness
The composite oxides of aluminum oxide oxidation film and a small amount of spinel structure, alloy surface defect is less, crystallite dimension it is most thin and
It is tightly combined, prevents the further progress of oxidation, reduce the oxidation rate of alloy, so that the high temperature for effectively improving alloy is anti-
Oxidation susceptibility.
Embodiment 1
Wrought superalloy production technology, includes the following steps:
Step S1, alloy raw material pre-processes: according to 2 parts of following parts by weight molybdenum, 40 parts of nickel, 5 parts of aluminium, 0.5 part of yttrium oxide, oxygen
Change 0.2 part of lanthanum, 0.1 part of chopped carbon fiber weigh each alloy raw material, and premix processing carried out to alloy raw material；
Step S2: alloyage, the then melting in vaccum sensitive stove are matched by above-mentioned element, fusion process controls fine melt
Temperature: 1530 DEG C；Control liquid steel refining temperature: 1500 DEG C；Solution, is poured into alloy electrode by the tapping of melting latter stage；
Step S3: alloy electrode obtained in step S2 is subjected to electroslag remelting, remelting is at ESR ingot；Electroslag remelting uses
Pre-melted slag, the quality proportioning of slag system are Al2O3: TiO2: CaO:MgO=20:10:2.8:5；
Step S4: ESR ingot obtained in step S3 is subjected to vacuum consumable remelting, obtains consumable ingot；Vacuum consumable remelting
When, controlling molten speed is 2.5Kg/min；
Step S5: consumable ingot obtained in step S4 is subjected to High temperature diffusion homogenizing annealing within the scope of 1175 DEG C, is obtained
Obtain homogenizing annealing ingot；
Step S6: homogenizing annealing ingot obtained in step S5 is heated to 1140 DEG C, 3h is kept the temperature, is squeezed on extruder
At required bar；
Step S7: cutting sample using wire cutting mode to the head of bar obtained in step S6, and to sample heat at
Reason, sample system of heat treatment process are as follows: 1050 DEG C are heated to, 4h is kept the temperature, oil is cooled to room temperature, sample is then heated to 750 DEG C,
8h is kept the temperature, room temperature is air-cooled to, obtains wrought superalloy bar；
Step S8: by wrought superalloy bar under the conditions of 1000 DEG C of temperature pre-oxidation treatment 1h, cool to the furnace
Room temperature.
Embodiment 2
Wrought superalloy production technology, includes the following steps:
Step S1, alloy raw material pre-processes: according to 2.5 parts of following parts by weight molybdenum, 45 parts of nickel, 7.5 parts of aluminium, yttrium oxide 0.8
Part, 0.25 part of lanthana, 0.15 part of chopped carbon fiber weigh each alloy raw material, and premix processing carried out to alloy raw material；
Step S2: alloyage, the then melting in vaccum sensitive stove are matched by above-mentioned element, fusion process controls fine melt
Temperature: 1550 DEG C；Control liquid steel refining temperature: 1540 DEG C；Solution, is poured into alloy electrode by the tapping of melting latter stage；
Step S3: alloy electrode obtained in step S2 is subjected to electroslag remelting, remelting is at ESR ingot；Electroslag remelting uses
Pre-melted slag, the quality proportioning of slag system are Al2O3: TiO2: CaO:MgO=20:10:2.8:5；
Step S4: ESR ingot obtained in step S3 is subjected to vacuum consumable remelting, obtains consumable ingot；Vacuum consumable remelting
When, controlling molten speed is 3Kg/min；
Step S5: consumable ingot obtained in step S4 is subjected to High temperature diffusion homogenizing annealing within the scope of 1180 DEG C, is obtained
Obtain homogenizing annealing ingot；
Step S6: homogenizing annealing ingot obtained in step S5 is heated to 1155 DEG C, keeps the temperature 3.5h, is squeezed on extruder
It is pressed into required bar；
Step S7: cutting sample using wire cutting mode to the head of bar obtained in step S6, and to sample heat at
Reason, sample system of heat treatment process are as follows: 1050 DEG C are heated to, 4h is kept the temperature, oil is cooled to room temperature, sample is then heated to 750 DEG C,
8h is kept the temperature, room temperature is air-cooled to, obtains wrought superalloy bar；
Step S8: by wrought superalloy bar under the conditions of 1000 DEG C of temperature pre-oxidation treatment 1h, cool to the furnace
Room temperature.
Embodiment 3
Wrought superalloy production technology, includes the following steps:
Step S1, alloy raw material pre-processes: according to 3 parts of following parts by weight molybdenum, 50 parts of nickel, 8 parts of aluminium, 1 part of yttrium oxide, oxidation
0.3 part of lanthanum, 0.2 part of chopped carbon fiber weigh each alloy raw material, and premix processing carried out to alloy raw material；
Step S2: alloyage, the then melting in vaccum sensitive stove are matched by above-mentioned element, fusion process controls fine melt
Temperature: 1580 DEG C；Control liquid steel refining temperature: 1570 DEG C；Solution, is poured into alloy electrode by the tapping of melting latter stage；
Step S3: alloy electrode obtained in step S2 is subjected to electroslag remelting, remelting is at ESR ingot；Electroslag remelting uses
Pre-melted slag, the quality proportioning of slag system are Al2O3: TiO2: CaO:MgO=20:10:2.8:5；
Step S4: ESR ingot obtained in step S3 is subjected to vacuum consumable remelting, obtains consumable ingot；Vacuum consumable remelting
When, controlling molten speed is 3.5Kg/min；
Step S5: consumable ingot obtained in step S4 is subjected to High temperature diffusion homogenizing annealing within the scope of 1185 DEG C, is obtained
Obtain homogenizing annealing ingot；
Step S6: homogenizing annealing ingot obtained in step S5 is heated to 1165 DEG C, 4h is kept the temperature, is squeezed on extruder
At required bar；
Step S7: cutting sample using wire cutting mode to the head of bar obtained in step S6, and to sample heat at
Reason, sample system of heat treatment process are as follows: 1050 DEG C are heated to, 4h is kept the temperature, oil is cooled to room temperature, sample is then heated to 750 DEG C,
8h is kept the temperature, room temperature is air-cooled to, obtains wrought superalloy bar；
Step S8: by wrought superalloy bar under the conditions of 1000 DEG C of temperature pre-oxidation treatment 1h, cool to the furnace
Room temperature.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (3)
1. wrought superalloy production technology, which comprises the steps of:
Step S1, alloy raw material pre-processes: according to 2-3 parts of following parts by weight molybdenum, 40-50 parts of nickel, 5-8 parts of aluminium, yttrium oxide 0.5-1
Part, 0.2-0.3 parts of lanthana, 0.1-0.2 parts of chopped carbon fiber weigh each alloy raw material, and alloy raw material carried out at premix
Reason；
Step S2: alloyage, the then melting in vaccum sensitive stove are matched by above-mentioned element, fusion process controls fine melt temperature
Degree: 1530 DEG C -1580 DEG C；Control liquid steel refining temperature: 1500 DEG C -1570 DEG C；Solution, is poured into alloy by the tapping of melting latter stage
Electrode；
Step S3: alloy electrode obtained in step S2 is subjected to electroslag remelting, remelting is at ESR ingot；Electroslag remelting uses fritting
Slag, the quality proportioning of slag system are Al2O3: TiO2: CaO:MgO=20:10:2.8:5；
Step S4: ESR ingot obtained in step S3 is subjected to vacuum consumable remelting, obtains consumable ingot；When vacuum consumable remelting,
The molten speed of control is 2.5-3.5Kg/min；
Step S5: carrying out High temperature diffusion homogenizing annealing for consumable ingot obtained in step S4 within the scope of 1175 DEG C -1185 DEG C,
Obtain homogenizing annealing ingot；
Step S6: homogenizing annealing ingot obtained in step S5 is heated to 1140 DEG C -1165 DEG C, 3-4h is kept the temperature, in extruder
On be squeezed into required bar；
Step S7: sample is cut using wire cutting mode to the head of bar obtained in step S6, and sample is heat-treated, examination
Sample system of heat treatment process are as follows: be heated to 1050 DEG C, keep the temperature 4h, oil is cooled to room temperature, sample is then heated to 750 DEG C, heat preservation
8h is air-cooled to room temperature, obtains wrought superalloy bar；
Step S8: by wrought superalloy bar under the conditions of 1000 DEG C of temperature pre-oxidation treatment 1h, cool to room temperature with the furnace.
2. wrought superalloy production technology according to claim 1, which is characterized in that premix the tool of processing in step S1
Body process are as follows:
1) each alloy raw material is placed in acetone and impregnates 30-40min, taken out, with washes of absolute alcohol 2-3 times, then be placed in 70 DEG C
Baking oven in dry 3-4h, remove the spot and impurity of alloy surface；
2) first by the mixing tank of ball mill and ball with washes of absolute alcohol 2-3 times, then dry 3-4h is placed in 70 DEG C of baking oven, with
It is anti-to there is impurity to pollute alloy；
3) weighed each raw alloy is put into ball mill, revolving speed is set as 150r/min, and mixing time is 5 hours, ball material
Than for 1:1；
4) after mixing process, powder is taken out, crosses 300 meshes, completes the pretreatment to alloy.
3. wrought superalloy production technology according to claim 1, which is characterized in that extruder described in step S6
Rated pressure is 4500T.
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| CN110468357A (en) * | 2019-08-22 | 2019-11-19 | 惠州市泰铭五金有限公司 | A kind of high life heat resistanceheat resistant difference deformable metal plate and processing method |
| CN113151652A (en) * | 2021-02-08 | 2021-07-23 | 衡阳市金则利特种合金股份有限公司 | Production process and application of small-section high-temperature alloy steel bar |
| CN114686730A (en) * | 2022-03-09 | 2022-07-01 | 北京科技大学 | Preparation method of carbide dispersion strengthening deformation high-temperature metal capable of being applied at 900 DEG C |
| CN114990344A (en) * | 2022-06-07 | 2022-09-02 | 大冶特殊钢有限公司 | Method for producing high-Al alloy by adopting vacuum consumable melting |
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| CN110396605A (en) * | 2019-07-22 | 2019-11-01 | 中国航发北京航空材料研究院 | A kind of preparation method of wrought superalloy ingot casting |
| CN110396605B (en) * | 2019-07-22 | 2021-02-09 | 中国航发北京航空材料研究院 | Preparation method of deformed high-temperature alloy ingot |
| CN110468357A (en) * | 2019-08-22 | 2019-11-19 | 惠州市泰铭五金有限公司 | A kind of high life heat resistanceheat resistant difference deformable metal plate and processing method |
| CN113151652A (en) * | 2021-02-08 | 2021-07-23 | 衡阳市金则利特种合金股份有限公司 | Production process and application of small-section high-temperature alloy steel bar |
| CN114686730A (en) * | 2022-03-09 | 2022-07-01 | 北京科技大学 | Preparation method of carbide dispersion strengthening deformation high-temperature metal capable of being applied at 900 DEG C |
| CN114990344A (en) * | 2022-06-07 | 2022-09-02 | 大冶特殊钢有限公司 | Method for producing high-Al alloy by adopting vacuum consumable melting |
| CN114990344B (en) * | 2022-06-07 | 2023-11-24 | 大冶特殊钢有限公司 | Method for producing high Al alloy by adopting vacuum consumable smelting |
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