CN110438424A - A kind of low temperature deformation reinforcing heat treatment method of nickel-base alloy GH4169 - Google Patents
A kind of low temperature deformation reinforcing heat treatment method of nickel-base alloy GH4169 Download PDFInfo
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- CN110438424A CN110438424A CN201910703057.0A CN201910703057A CN110438424A CN 110438424 A CN110438424 A CN 110438424A CN 201910703057 A CN201910703057 A CN 201910703057A CN 110438424 A CN110438424 A CN 110438424A
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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
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Abstract
The present invention provides the low temperature deformations of nickel-base alloy GH4169 a kind of to strengthen heat treatment method comprising the steps of: (1) GH4169 nickel-base alloy forging is carried out solution heat treatment, water cooling of coming out of the stove；(2) the GH4169 nickel-base alloy forging after water cooling is carried out low-temperature deformation, forging or rolling, then water cooling to room temperature: GH4169 nickel-base alloy forging or rolled piece progress aging strengthening model after water cooling are come out of the stove air-cooled, obtain GH4169 nickel-base alloy by (3).The heat treatment method can significantly improve the room temperature tensile intensity and yield strength of material compared with current normative heat treatment method, and room temperature hardness significantly improves.
Description
Technical field
The present invention relates to nickel-base alloy hot-working and technical field of heat treatment more particularly to a kind of GH4169 nickel-base alloys
Low temperature deformation strengthens heat treatment method.
Background technique
GH4169 one kind is with body-centered tetragonal γ " (Ni3) and face-centered cubic γ ' (Ni Nb3(Al, Ti, Nb)) based on need to strengthen phase
Ageing strengthening type ferronickel base wrought superalloy, in -253~700 DEG C of temperature ranges have good comprehensive performance, 650
DEG C yield strength below occupies the first place of wrought superalloy, and has good antifatigue, anti-radiation, anti-oxidant, corrosion-resistant
Performance and good processing performance, welding performance and chronic tissue stability can manufacture zero of various shape complexity
Part obtains extremely wide application in aerospace, nuclear energy, petroleum industry within the said temperature range, is known as " omnipotent alloy "
Laudatory title.The main chemical compositions of the alloy are shown in Table 1:
The alloy normative heat treatment technique is shown in Table 2:
The alloy normative heat treatment performance is shown in Table 3:
Low by the GH4169 nickel-base alloy intensity of normative heat treatment, especially room temperature hardness HRc is the upper limit with 45.Its usability
Special user's requirement can be met.It further increases the application range of the material and gives full play to alloy property potentiality,
With important engineering application value and meaning.
Summary of the invention
The low temperature deformation that the present invention provides a kind of GH4169 nickel-base alloy strengthens heat treatment method, this method and at present routine
Compared to that can significantly improve room temperature intensity and hardness, the wearability of material significantly improves heat treatment method.
The technical scheme is that
A kind of low temperature deformation reinforcing heat treatment method of nickel-base alloy GH4169, comprising the following steps:
(1) GH4169 nickel-base alloy forging is subjected to solution heat treatment, water cooling of coming out of the stove；
(2) the GH4169 nickel-base alloy forging after water cooling is subjected to low-temperature deformation, then water cooling to room temperature；
(3) by after water cooling GH4169 nickel-base alloy forging or rolled piece carry out direct aging heat treatment, come out of the stove and be air-cooled to room temperature, obtain
To GH4169 nickel-base alloy.
Preferably, the temperature of solution heat treatment is 1050 DEG C in the step (1), keeps the temperature 60min, water cooling of coming out of the stove.
Preferably, forging is come out of the stove in the step (1), is put into sink water cooling to room temperature by hanging device.
Preferably, low-temperature deformation temperature range is 820 DEG C ~ 850 DEG C in the step (2), total deformation 30% ~ 50%,
Water cooling is to room temperature after deformation.
Preferably, low-temperature deformation technique is forging or rolling in the step (2).
Preferably, 720 DEG C of aging temperature of the step (3) keeps the temperature 8h, is cooled to 620 DEG C with 55 DEG C/h, heat preservation
10h comes out of the stove and is air-cooled to room temperature.
Room temperature of the present invention is 0-40 DEG C.
Beneficial effects of the present invention: increasing low temperature deformation technique in reinforcing heat treatment method of the invention, with conventional heat
Compared to the room temperature intensity and hardness of GH4169 nickel-base alloy is significantly improved, wearability greatly improves treatment process.
Specific embodiment
It is further described embodiment of the present invention in conjunction with the embodiments separately below.
Embodiment 1: by GH4169 nickel-base alloy carry out solution heat treatment, 1050 DEG C of solution heat treatment temperature, in material
Outer temperature uniformly keeps the temperature 1 hour afterwards, then comes out of the stove and is put into sink water cooling to room temperature.By the GH4169 nickel-base alloy forging after water cooling
Part carries out isothermal forging at 820 DEG C, and deflection 30% is then placed in sink and carries out water quenching.By the GH4169 forging after water cooling
Direct aging processing is carried out, technique is 720 DEG C, keeps the temperature 8h, is then cooled to 620 DEG C with 55 DEG C/h, sky of coming out of the stove after heat preservation 10h
It is cooled to room temperature.
Embodiment 2: GH4169 nickel-base alloy is subjected to solution heat treatment, solid solution craft is the same as embodiment 1.After solution treatment
GH4169 nickel-base alloy forging carry out isothermal forging at 830 DEG C, deflection 50% is then placed in sink and carries out water quenching.It will
GH4169 forging after water cooling carries out direct aging processing, and technique is 720 DEG C, keeps the temperature 8h, is then cooled to 620 with 55 DEG C/h
DEG C, it comes out of the stove after heat preservation 10h and is air-cooled to room temperature.
Embodiment 3: GH4169 nickel-base alloy is subjected to solution heat treatment, solid solution craft is the same as embodiment 1.After solution treatment
GH4169 nickel-base alloy forging carry out isothermal forging at 850 DEG C, deflection 40% is then placed in sink and carries out water quenching.It will
GH4169 forging after water cooling carries out direct aging processing, and technique is 720 DEG C, keeps the temperature 8h, is then cooled to 620 with 55 DEG C/h
DEG C, it comes out of the stove after heat preservation 10h and is air-cooled to room temperature.
Comparative example 1: by GH4169 nickel-base alloy carry out solution heat treatment, 1050 DEG C of solution heat treatment temperature, in material
Outer temperature uniformly keeps the temperature 1 hour afterwards, water cooling of then coming out of the stove.GH4169 nickel-base alloy forging after water cooling is carried out at 880 DEG C
Isothermal forging, deflection 30% are then placed in sink and carry out water quenching.GH4169 forging after water cooling is carried out at direct aging
Reason, technique are 720 DEG C, keep the temperature 8h, are then cooled to 620 DEG C with 55 DEG C/h, come out of the stove after heat preservation 10h and be air-cooled to room temperature.
Comparative example 2: GH4169 nickel-base alloy is subjected to solution heat treatment, solid solution craft is the same as comparative example 1.After solution treatment
GH4169 nickel-base alloy forging carry out isothermal forging at 1100 DEG C, deflection 30% is then placed in sink and carries out water quenching.
GH4169 forging after water cooling is subjected to direct aging processing, technique is 720 DEG C, keeps the temperature 8h, is then cooled to 55 DEG C/h
It 620 DEG C, comes out of the stove after keeping the temperature 10h and is air-cooled to room temperature.
Using test method generally in the art to tensile strength Rm(MPa in Examples 1 to 3 and comparative example 1~2), bend
Take intensity Rp0.2(MPa), ballistic work (%) and room temperature Rockwell hardness HRc be measured, measurement result is as follows:
Low temperature deformation technique is increased in heat treatment method of the invention, is significantly improved compared with normative heat treatment technique
GH4169 nickel-base alloy room temperature intensity and hardness, and impact flexibility is not substantially reduced, and has widened the application neck of the material significantly
Domain.
Detailed process flow of the invention that the present invention is explained by the above embodiments, but the invention is not limited to above-mentioned
Detailed process flow, being also not entirely dependent on above-mentioned process equipment and process flow could implement.Any change for of the invention
Into addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc. all fall within the present invention
Protection scope and the open scope within.
Claims (6)
1. the low temperature deformation of nickel-base alloy GH4169 a kind of strengthens heat treatment method, which comprises the following steps:
(1) GH4169 nickel-base alloy forging is subjected to solution heat treatment, water cooling of coming out of the stove；
(2) the GH4169 nickel-base alloy forging after water cooling is subjected to low-temperature deformation, then water cooling to room temperature；
(3) by after water cooling GH4169 nickel-base alloy forging or rolled piece carry out direct aging heat treatment, come out of the stove and be air-cooled to room temperature, obtain
To GH4169 nickel-base alloy.
2. low temperature deformation according to claim 1 strengthens heat treatment method, which is characterized in that solid solution in the step (1)
The temperature of heat treatment is 1050 DEG C, keeps the temperature 60min, water cooling of coming out of the stove.
3. low temperature deformation according to claim 1 strengthens heat treatment method, which is characterized in that forging in the step (1)
It comes out of the stove, water cooling is put into sink to room temperature by hanging device.
4. low temperature deformation according to claim 1 strengthens heat treatment method, which is characterized in that low temperature in the step (2)
Deformation temperature section is 820 DEG C ~ 850 DEG C, total deformation after 30% ~ 50%, deformation water cooling to room temperature.
5. low temperature deformation according to claim 1 strengthens heat treatment method, which is characterized in that low temperature in the step (2)
Deformation technique is forging or rolling.
6. low temperature deformation according to claim 1 strengthens heat treatment method, which is characterized in that at step (3) timeliness
720 DEG C of temperature of reason keeps the temperature 8h, is cooled to 620 DEG C with 55 DEG C/h, keeps the temperature 10h, come out of the stove and be air-cooled to room temperature.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964995A (en) * | 2019-11-27 | 2020-04-07 | 中国科学院金属研究所 | Increase sigma 3 IN IN718 nickel-base superalloynMethod for proportion of type crystal boundary |
| CN112795857A (en) * | 2020-12-12 | 2021-05-14 | 河钢股份有限公司 | Method for improving comprehensive performance of GH4169 alloy plate |
| CN113308628A (en) * | 2020-02-27 | 2021-08-27 | 南京理工大学 | Nickel-based alloy with high-strength block nano structure and preparation method thereof |
| CN115433892A (en) * | 2022-09-14 | 2022-12-06 | 贵州大学 | Method for simultaneously improving strength and plasticity of GH4169 high-temperature alloy plate |
| 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 |
| CN116351994A (en) * | 2023-05-25 | 2023-06-30 | 北京中辰至刚科技有限公司 | Isothermal forging method of refractory high-entropy alloy product and processed product thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964995A (en) * | 2019-11-27 | 2020-04-07 | 中国科学院金属研究所 | Increase sigma 3 IN IN718 nickel-base superalloynMethod for proportion of type crystal boundary |
| CN113308628A (en) * | 2020-02-27 | 2021-08-27 | 南京理工大学 | Nickel-based alloy with high-strength block nano structure and preparation method thereof |
| CN112795857A (en) * | 2020-12-12 | 2021-05-14 | 河钢股份有限公司 | Method for improving comprehensive performance of GH4169 alloy plate |
| CN115433892A (en) * | 2022-09-14 | 2022-12-06 | 贵州大学 | Method for simultaneously improving strength and plasticity of GH4169 high-temperature alloy plate |
| 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 |
| CN116351994A (en) * | 2023-05-25 | 2023-06-30 | 北京中辰至刚科技有限公司 | Isothermal forging method of refractory high-entropy alloy product and processed product thereof |
| CN116351994B (en) * | 2023-05-25 | 2023-12-19 | 北京中辰至刚科技有限公司 | Isothermal forging method of refractory high-entropy alloy product and processed product thereof |
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