CN106521121A - Heat treatment method for high-temperature alloy steel - Google Patents
Heat treatment method for high-temperature alloy steel Download PDFInfo
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- CN106521121A CN106521121A CN201611000185.1A CN201611000185A CN106521121A CN 106521121 A CN106521121 A CN 106521121A CN 201611000185 A CN201611000185 A CN 201611000185A CN 106521121 A CN106521121 A CN 106521121A
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- 238000000034 method Methods 0.000 title claims abstract description 62
- 238000010438 heat treatment Methods 0.000 title claims abstract description 55
- 229910000851 Alloy steel Inorganic materials 0.000 title claims abstract description 30
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 238000005242 forging Methods 0.000 claims abstract description 34
- 230000032683 aging Effects 0.000 claims abstract description 17
- 239000006104 solid solution Substances 0.000 claims abstract description 15
- 238000000137 annealing Methods 0.000 claims abstract description 9
- 238000009792 diffusion process Methods 0.000 claims abstract description 8
- 238000009413 insulation Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000007669 thermal treatment Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000003303 reheating Methods 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 description 28
- 239000000956 alloy Substances 0.000 description 28
- 239000013078 crystal Substances 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 206010016256 fatigue Diseases 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000001556 precipitation Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005204 segregation Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910001257 Nb alloy Inorganic materials 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910000601 superalloy Inorganic materials 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
Abstract
The invention belongs to the technical field of alloy steel and particularly relates to a heat treatment method for high-temperature alloy steel. The heat treatment method comprises the steps of a, a high-temperature diffusion annealing process, wherein a high-temperature alloy steel ingot is heated for 22-26 h at the temperature of 1,150 plus or minus 10 DEG C, then heating is conducted for 70-74 h at the temperature of 1,190 plus or minus 10 DEG C, and then air cooling is conducted; b, pretreatment after forging, wherein the heating temperature is 950 plus or minus 10 DEG C, the temperature is kept for 0.5-1.5 h, and then air cooling is conducted; c, high-temperature solid solution treatment, wherein the heating temperature is 910 plus or minus 10 DEG C, the temperature is kept for 18-24 h, and then air cooling is conducted; and reheating is conducted, the heating temperature is 960 plus or minus 10 DEG C, the temperature is kept for 1-2 h, and air cooling is conducted; and d, low-temperature aging treatment, wherein the heating temperature is 710 plus or minus 10 DEG C, the temperature is kept for 7-10 h, then the temperature is decreased to 610 plus or minus 10 DEG C at the speed of 50-60 DEG C/h with furnace cooling, then the temperature is kept for 7-10 h, air cooling is conducted, and a forging is obtained. By the adoption of the heat treatment method for the GH4169 high-temperature alloy steel, the heating pretreatment after forging, high-temperature solid solution treatment and low-temperature aging treatment thermal treatment process system is adopted, the high-temperature plasticity is good and the creep resistance life is long.
Description
Technical field
The invention belongs to technical field of alloy steel, and in particular to a kind of heat treatment method of high-temperature alloy steel.
Background technology
The annual production of GH4169 alloys accounts for the 45% of wrought superalloy total output, is the maximum high temperature alloy of current production rate
One of.GH4169 alloys are a kind of precipitation hardenable Fe Ni matrix high temperature alloys of niobium reinforcing, and the alloy has high-strength at high temperature
Degree, high fatigue property and good plasticity, therefore it is widely used in the fields such as Aeronautics and Astronautics, nuclear energy and oil.It is domestic general
It is the part of one class of the turbine disk by dydraulic forging and this material of hammering two kinds of technique productions of forging.
The strengthening mechanism of high temperature alloy mainly has two class of solution strengthening and precipitation strength, the heat treatment mode of GH4169 alloys
Also mainly it is made up of solution treatment and Ageing Treatment two parts.And different Technologies for Heating Processing can be to the grain size of alloy, strong
The precipitation or dissolving, precipitation quantity and particle size even grain boundary state for changing phase produces impact.Due to the price of the alloy it is suitable
Costliness, in order to ensure stablizing for the tissue and performance of workpiece, Technology for Heating Processing is typically chosen vacuum heat.As vacuum drying oven exists
Heat transfer under vacuum state is single radiant heat transfer, and the heating in vacuum atmosphere has other media (air, controllable gas
Atmosphere, salt bath) the characteristics of can not possibly possessing is heated, the selection of technological parameter also has particularity.
Many scholars had studied impact of the different heat treatment to GH4169 alloy hot behaviors.As a result show, heat
The δ phase contents separated out in processing procedure are with the different and different of Technology for Heating Processing, and the resistance of deformation of alloy is with the increase of δ phases
And reduce, it is present in the recrystallization that the δ phases of crystal boundary are conducive in thermal deformation process, the δ phases in crystal boundary then hinder its nucleation process.
Used as domestic turbine disk material, its actual service condition is usually under 650 DEG C of operating mode, at such a temperature to its fatigability
Research can be carried out with more practical engineering significance.At the same time, for the research of GH4169 alloy low-cycle fatigue, great majority
Scholar is the impact for studying temperature, frequency etc. to the mechanical property of material, with regard to mutually in high temperature environments to alloy fatigue row
For impact be rarely reported.
Publication No. " CN105695703A ", entitled " a kind of mould steel heat treatment process ", discloses one kind
The direct heat-treatment technology method of two fire of the conditioning treatment of 7Cr7Mo2V2Si high-strength toughness cold working die steels and quenching and tempering,
From the point of view of the parameter introduced, the hardness and wearability value only to the mould steel lifts some effects, but is extremely difficult to high temperature alloy
Technology for Heating Processing is substantially without reference value.
" GH4169 alloy components vacuum aging numerical simulations ", metal heat treatmet, disclose right at the 1st phase of volume 31
The simulation of GH4169 alloy components vacuum aging process temperatures field is calculated, and is carried out simple authentication, but is not provided alloy solid solution process
With the technological parameter such as the suitable temperature of Ageing Treatment.
The content of the invention
The technical problem to be solved is to provide a kind of form for changing precipitated phase in alloy and distribution, and changes
The form of crystal boundary in kind alloy, and then the purpose for improving alloy mechanical property is reached, improve the heat of steel alloy high temperature life
Processing method.
A kind of heat treatment method of high-temperature alloy steel of the present invention, comprises the following steps：
A, high temperature diffusion annealing technique：High-temperature alloyed steel ingot is heated into 22～26h at 1150 ± 10 DEG C, then 1190 ± 10
After 70～74h is heated at DEG C, air cooling；
Pre-process after b, forging：Heating-up temperature is 950 ± 10 DEG C, after 0.5～1.5h of insulation, air cooling；
C, higher temperature solid solution：Heating-up temperature is 910 ± 10 DEG C, after 18～24h of insulation, air cooling；Reheat, heating-up temperature
For 960 ± 10 DEG C, 1～2h, air cooling are incubated；
D, low temperature aging process：Heating-up temperature is 710 ± 10 DEG C, is controlled with the speed of 50～60 DEG C/h after 7～10h of insulation
Cool to 610 ± 10 DEG C with the furnace, then be incubated 7～10h, then air cooling, obtain forging finished product.
Further, high-temperature alloyed steel ingot is wherein existed in a steps by the heat treatment method of above-mentioned a kind of high-temperature alloy steel
1150 DEG C of heating 24h, then after heating 72h at 1190 DEG C, air cooling.
Further, the heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein in b step, heating-up temperature is 960 DEG C, is protected
After warm 1h, air cooling.
Further, the heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein in step c, heating-up temperature is 900 DEG C, is protected
Air cooling after warm 22h；Reheat, heating-up temperature is 950 DEG C, air cooling after insulation 1.5h.
Further, the heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein in Step d, heating-up temperature is 720 DEG C, is protected
620 DEG C are cooled to the furnace with the speed of 50 DEG C/h after warm 8h, then is incubated 8h, last air cooling.
The heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein the final crystal grain rank for obtaining forging is 8.0～8.6
Level.
A kind of heat treatment method of above-mentioned high-temperature alloy steel, the forging for obtaining under 650 DEG C, the creep condition of 720MPa,
Creep life is 182h.
A kind of GH4169 high-temperature alloy steels heat treatment method of the present invention, heat pre-treatment after forging, higher temperature solid solution and
Low temperature aging processes system of heat treatment process, obtains preferable high-temp plastic and creep resistant life-span.
Specific embodiment
Forging of the present invention is heated by large-scale electric furnace, temperature by temperature controller control, by thermocouple sensor
The temperature spot for measuring forging each 4 diverse locations on furnace wall both sides, upper and lower surface is total 24, is sent on temperature transmitter
Feedback control is realized, the uniformity of temperature rise in stove is ensured.Ingot casting Jing coggings, the alloy forged piece being forged into, GH4169 of the present invention are high
Temperature alloy steel forgings thermal treatment process technology scheme is comprised the following steps：
A, high temperature diffusion annealing technique：High-temperature alloyed steel ingot is heated into 22～26h at 1150 ± 10 DEG C, then 1190 ± 10
After 70～74h is heated at DEG C, air cooling；
Pre-process after b, forging：Heating-up temperature is 950 ± 10 DEG C, after 0.5～1.5h of insulation, air cooling；
C, higher temperature solid solution：Heating-up temperature is 910 ± 10 DEG C, after 18～24h of insulation, air cooling；Reheat, heating-up temperature
For 960 ± 10 DEG C, 1～2h, air cooling are incubated；
D, low temperature aging process：Heating-up temperature is 710 ± 10 DEG C, is controlled with the speed of 50～60 DEG C/h after 7～10h of insulation
610 ± 10 DEG C are cooled to stove, then are incubated 7～10h, air cooling obtains forging.
For high temperature alloy ingot, a part of element segregation or precipitation can be all made after heating every time, air cooling after phase solid solution
Temperature drop speed is slower, spreads beneficial to follow-up uniform, make tissue tend to uniformly, elimination segregation, other type of cooling cooling velocities are inclined
Greatly, room temperature or non-scald on hand are air cooled to.
Further, high-temperature alloyed steel ingot is wherein existed in a steps by the heat treatment method of above-mentioned a kind of high-temperature alloy steel
1150 DEG C of heating 24h, then after heating 72h at 1190 DEG C, air cooling.
Further, the heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein in b step, heating-up temperature is 960 DEG C, is protected
After warm 1h, air cooling.
Further, the heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein in step c, heating-up temperature is 900 DEG C, is protected
Air cooling after warm 22h；Reheat, heating-up temperature is 950 DEG C, air cooling after insulation 1.5h.
Further, the heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein in Step d, heating-up temperature is 720 DEG C, is protected
620 DEG C are cooled to the furnace with the speed of 50 DEG C/h after warm 8h, then is incubated 8h, then be air cooled to room temperature.
The heat treatment method of above-mentioned a kind of high-temperature alloy steel, wherein the final crystal grain rank for obtaining forging is 8.0～8.6
Level.
A kind of heat treatment method of above-mentioned high-temperature alloy steel, the forging for obtaining under 650 DEG C, the creep condition of 720MPa,
Creep life is 182h.
The present invention after take suitable forging at heat pre-treatment, higher temperature solid solution and low temperature aging to high temperature alloy
Reason system of heat treatment process, dissolves the γ ' of uneven distribution in nickel-base alloy mutually all or part of, reduces to greatest extent
The content of γ/γ ' two-phase eutectics, makes element fully be spread, the chemical composition of equal alloy, reduces component segregation, and adjusts
Quantity, form and the distribution of γ ' precipitated phases in gold are integrated, reaching improves the purpose of alloy property.By Ageing Treatment so as to from
Tiny γ ' and γ " phase, to put forward heavy alloyed room temperature and mechanical behavior under high temperature are separated out in supersaturated solid solution fully.Again simultaneously
Ageing Treatment so as to tiny γ ' and γ " phases, to carry heavy alloyed room temperature and high temperature are fully separated out from supersaturated solid solution
Mechanical property, makes alloy have longer creep life, can greatly improve product encashment ratio and user satisfaction, with climbing length
Other high temperature alloy heat treated articles of steel and the market prospects of domestic pharmaceutical industry industry popularization and application.
The specific embodiment of the present invention is further described with reference to embodiment, not therefore by present invention limit
System is among described scope of embodiments.
Embodiment 1
It is a kind ofThe GH4169 high-temperature alloyed steel ingot Jing high temperature diffusion annealing techniques of size are：1150±10
DEG C, be incubated 24h, then air cooling after 72h being incubated at 1190 ± 10 DEG C, it is after the upset heat processing technique with pulling of 7 passages, upset
ArriveCake, subsequent heat treatment technique are comprised the steps of：
(1) pre-process after forging：Heating-up temperature is 960 DEG C, is incubated 1h, air cooling；
(2) higher temperature solid solution：Heating-up temperature is 900 DEG C, is incubated 22h, air cooling；Reheat, heating-up temperature is 950 DEG C,
Insulation 1.5h, air cooling；
(3) low temperature aging is processed：Heating-up temperature is 720 DEG C, is incubated 8h, is cooled to 620 DEG C with stove with 50 DEG C/h speed, then protects
Warm 8h, air cooling.
The final crystal grain rank of forging is 8.5 grades；
Forging is 650 DEG C under creep condition, carry out the low all creep-fatigue experimental tests of high temperature, creep life under 720MPa
182h。
Embodiment 2
It is a kind ofThe GH4169 high-temperature alloyed steel ingot Jing high temperature diffusion annealing techniques of size are：1150±10
After 24h is incubated at DEG C, then 72h is incubated at 1190 ± 10 DEG C, air cooling is after the upset heat processing technique with pulling of 7 passages, upset
ArriveCake, subsequent heat treatment technique are comprised the steps of：
(1) pre-process after forging：Heating-up temperature is 950 DEG C, is incubated 1h, air cooling；
(2) higher temperature solid solution：Heating-up temperature is 910 DEG C, is incubated 24h, and air cooling is reheated, and heating-up temperature is 960 DEG C,
Insulation 2h, air cooling；
(3) low temperature aging is processed：Heating-up temperature is 710 DEG C, is incubated 9h, is cooled to 610 DEG C with stove with 60 DEG C/h speed, then protects
Warm 9h, air cooling.
The final crystal grain rank of forging is 8.2 grades；
Forging is 650 DEG C under creep condition, carry out the low all creep-fatigue experimental tests of high temperature, creep life under 720MPa
180h。
Embodiment 3
It is a kind ofThe GH4169 high-temperature alloyed steel ingot Jing high temperature diffusion annealing techniques of size are：1150±10
After 24h is incubated at DEG C, then 72h is incubated at 1190 ± 10 DEG C, air cooling is after the upset heat processing technique with pulling of 7 passages, upset
ArriveCake, subsequent heat treatment technique are comprised the steps of：
(1) pre-process after forging：Heating-up temperature is 940 DEG C, is incubated 1h, air cooling；
(2) higher temperature solid solution：Heating-up temperature is 920 DEG C, is incubated 18h, and air cooling is reheated, and heating-up temperature is 970 DEG C,
Insulation 1h, air cooling；
(3) low temperature aging is processed：Heating-up temperature is 700 DEG C, is incubated 10h, is cooled to 600 DEG C with stove with 55 DEG C/h speed, then
Insulation 7h, air cooling.
The final crystal grain rank of forging is 8.4 grades；
Forging is 650 DEG C under creep condition, carry out the low all creep-fatigue experimental tests of high temperature, creep life under 720MPa
181h。
Comparative example 1
It is a kind ofThe GH4169 high-temperature alloyed steel ingot Jing high temperature diffusion annealing techniques of size are：1190±10
Air cooling after 48h is incubated at DEG C, it is after the upset heat processing technique with pulling of 7 passages, upset to arriveCake, subsequent thermal
Handling process is comprised the steps of：
(1) pre-process after forging：Heating-up temperature is 940 DEG C, is incubated 1h, air cooling；
(2) higher temperature solid solution：Heating-up temperature is 920 DEG C, is incubated 12h, and air cooling is reheated, and heating-up temperature is 970 DEG C,
Insulation 1h, air cooling；
(3) low temperature aging is processed：Heating-up temperature is 700 DEG C, is incubated 7h, is cooled to 600 DEG C with stove with 55 DEG C/h speed, then protects
Warm 5h, air cooling.
The final crystal grain rank of forging is 7 grades, and still with the presence of minority mixed crystal；
Forging products carry out the low all creep-fatigue experimental tests of high temperature, creep life 54h under 650 DEG C, 720MPa.It is right
See than embodiment, former technique (1 technique of comparative example) shows annealing and follow-up heat treatment process is insufficient.
Claims (7)
1. a kind of heat treatment method of high-temperature alloy steel, it is characterised in that comprise the following steps：
A, high temperature diffusion annealing technique：High-temperature alloyed steel ingot is heated into 22～26h at 1150 ± 10 DEG C, then at 1190 ± 10 DEG C
After 70～74h of heating, air cooling；
Pre-process after b, forging：Heating-up temperature is 950 ± 10 DEG C, after 0.5～1.5h of insulation, air cooling；
C, higher temperature solid solution：Heating-up temperature is 910 ± 10 DEG C, after 18～24h of insulation, air cooling；Reheat, heating-up temperature is
960 ± 10 DEG C, it is incubated 1～2h, air cooling；
D, low temperature aging process：Heating-up temperature is 710 ± 10 DEG C, is controlled with the speed of 50～60 DEG C/h with stove after 7～10h of insulation
610 ± 10 DEG C being cooled to together, then being incubated 7～10h, air cooling obtains forging finished product.
2. a kind of heat treatment method of high-temperature alloy steel according to claim 1, it is characterised in that：High temperature is closed in a steps
Golden steel ingot heats 24h at 1150 DEG C, then after heating 72h at 1190 DEG C, air cooling.
3. a kind of heat treatment method of high-temperature alloy steel according to claim 1, it is characterised in that：Heating-up temperature in b step
For 960 DEG C, after insulation 1h, air cooling.
4. a kind of heat treatment method of high-temperature alloy steel according to claim 1, it is characterised in that：Heating-up temperature in step c
For 900 DEG C, air cooling after insulation 22h；Reheat, heating-up temperature is 950 DEG C, air cooling after insulation 1.5h.
5. a kind of heat treatment method of high-temperature alloy steel according to claim 1, it is characterised in that：Heating-up temperature in Step d
For 720 DEG C, control 620 DEG C to be cooled to the furnace with the speed of 50 DEG C/h after insulation 8h, then be incubated 8h, then air cooling.
6. a kind of heat treatment method of high-temperature alloy steel according to any one of Claims 1 to 5, it is characterised in that：Forging is brilliant
Grade Wei 8.0～8.6 grades.
7. a kind of heat treatment method of high-temperature alloy steel according to any one of Claims 1 to 5, it is characterised in that：Forging exists
650 DEG C, under the creep condition of 720MPa, creep life is 182h.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321854A (en) * | 2018-11-16 | 2019-02-12 | 首都航天机械有限公司 | A kind of heat treatment process improving precinct laser fusion forming GH4169 alloy cold plasticity |
| CN110527796A (en) * | 2019-08-26 | 2019-12-03 | 张家港广大特材股份有限公司 | A method of passing through Heat Treatment Control high temperature alloy forging grain size |
| CN111633164A (en) * | 2020-06-09 | 2020-09-08 | 上海蓝铸特种合金材料有限公司 | Forging process special for mask plate support alloy Invar36 |
| CN112481477A (en) * | 2020-10-28 | 2021-03-12 | 江麓机电集团有限公司 | Heat treatment method of 30CrMnSiA thin steel plate fine punching part |
| CN114107852A (en) * | 2021-11-25 | 2022-03-01 | 北京钢研高纳科技股份有限公司 | Heat treatment method of GH4096 alloy forging, forging prepared by same and application thereof |
| CN116005087A (en) * | 2022-12-09 | 2023-04-25 | 陕西宏远航空锻造有限责任公司 | Heat treatment method of GH4169 alloy forging |
| CN116987990A (en) * | 2023-08-11 | 2023-11-03 | 衡水中裕铁信装备工程有限公司 | Heat treatment method for eliminating double grains of precipitation hardening type high-temperature alloy forging |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109321854A (en) * | 2018-11-16 | 2019-02-12 | 首都航天机械有限公司 | A kind of heat treatment process improving precinct laser fusion forming GH4169 alloy cold plasticity |
| CN110527796A (en) * | 2019-08-26 | 2019-12-03 | 张家港广大特材股份有限公司 | A method of passing through Heat Treatment Control high temperature alloy forging grain size |
| CN111633164A (en) * | 2020-06-09 | 2020-09-08 | 上海蓝铸特种合金材料有限公司 | Forging process special for mask plate support alloy Invar36 |
| CN112481477A (en) * | 2020-10-28 | 2021-03-12 | 江麓机电集团有限公司 | Heat treatment method of 30CrMnSiA thin steel plate fine punching part |
| CN114107852A (en) * | 2021-11-25 | 2022-03-01 | 北京钢研高纳科技股份有限公司 | Heat treatment method of GH4096 alloy forging, forging prepared by same and application thereof |
| CN114107852B (en) * | 2021-11-25 | 2022-07-19 | 北京钢研高纳科技股份有限公司 | Heat treatment method of GH4096 alloy forging, forging prepared by same and application thereof |
| CN116005087A (en) * | 2022-12-09 | 2023-04-25 | 陕西宏远航空锻造有限责任公司 | Heat treatment method of GH4169 alloy forging |
| CN116987990A (en) * | 2023-08-11 | 2023-11-03 | 衡水中裕铁信装备工程有限公司 | Heat treatment method for eliminating double grains of precipitation hardening type high-temperature alloy forging |
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