CN105543748A - Heat treatment method for Nimonic101 nickel-based alloy - Google Patents
Heat treatment method for Nimonic101 nickel-based alloy Download PDFInfo
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- CN105543748A CN105543748A CN201511021777.7A CN201511021777A CN105543748A CN 105543748 A CN105543748 A CN 105543748A CN 201511021777 A CN201511021777 A CN 201511021777A CN 105543748 A CN105543748 A CN 105543748A
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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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- Heat Treatments In General, Especially Conveying And Cooling (AREA)
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Abstract
The invention provides a heat treatment method for Nimonic101 nickel-based alloy. The heat treatment method for the Nimonic101 nickel-based alloy comprises the following steps that (1) solid solution heat treatment is conducted on a Nimonic101 nickel-based alloy forged piece, and the Nimonic101 nickel-based alloy forged piece is discharged out of a furnace and air cooled; (2) intermediate heat treatment is conducted on the air-cooled Nimonic101 nickel-based alloy forged piece at the temperature of 1020-1080 DEG C, heat preservation is conducted for 8-16 hours, and then the Nimonic101 nickel-based alloy forged piece is discharged out of the furnace and air cooled; and (3) aging heat treatment is conducted on the air-cooled Nimonic101 nickel-based alloy forged piece, and then the Nimonic101 nickel-based alloy forged piece is discharged out of the furnace and air cooled, so that the Nimonic101 nickel-based alloy is prepared. Compared with heat treatment methods which are frequently used at present, the heat treatment method can remarkably improve the indoor-temperature tensile strength and indoor-temperature yield strength and can also slightly improve the indoor-temperature ductility and indoor-temperature percentage of area reduction.
Description
Technical field
The present invention relates to technical field of alloy thermal treatment, particularly relate to a kind of heat treating method of Nimonic101 nickel-base alloy.
Background technology
Nimonic101 alloy is the Nimonic series of transformations nickel base superalloy of Britain, mainly for the manufacture of some forging at aircraft engine and gas turbine high temperature position.The main chemical compositions of this alloy sees the following form 1.The thermal treatment process that current Nimonic101 alloy forged piece is conventional sees the following form 2;
Table 1
| Title | Temperature (DEG C) | Soaking time (h) | The type of cooling |
| Solid solution | 1125 | 4 | Air cooling |
| Timeliness | 850 | 16 | Air cooling |
Table 2
| Tensile strength Rm (MPa) | Yield strength Rp0.2 (MPa) | Unit elongation A (%) |
| ≥1080 | ≥685 | ≥12 |
Table 3
The mechanical properties of dimensional effect on distortion nickel base superalloy has remarkably influenced, maximum cross-section thickness is more than the Nimonic101 alloy forged piece of 40mm after the thermal treatment process thermal treatment in table 2, and mechanical properties usually can not meet the acceptance requirement in table 3.Therefore, how solving the defective problem of large size Nimonic101 alloy forged piece mechanical properties is improve the safety margin of this alloy and give full play to the key of alloy property potentiality, has important engineer applied value and significance.
Summary of the invention
In view of this, the invention provides a kind of heat treating method of Nimonic101 nickel-base alloy, this heat treating method can significantly improve room temperature tensile intensity and yield strength compared with heat treating method conventional at present, and room temperature unit elongation and relative reduction in area also slightly improve.
A heat treating method for Nimonic101 nickel-base alloy, comprises the following steps:
(1) Nimonic101 nickel-base alloy forging is carried out solution heat treatment, air cooling of coming out of the stove;
(2) the Nimonic101 nickel-base alloy forging after air cooling is carried out intermediate heat treatment at 1020 ~ 1080 DEG C, and be incubated 8 ~ 16h, come out of the stove air-cooled;
(3) the Nimonic101 nickel-base alloy forging after air-cooled is carried out aging strengthening model, air cooling of coming out of the stove, obtained Nimonic101 nickel-base alloy.
Preferably, in described step (1), solution heat treatment temperature is 1125 DEG C, insulation 4h.
Preferably, described step (2) intermediate heat treatment temperature is 1050 ~ 1080 DEG C, insulation 16h.
Preferably, described step (3) aging strengthening model temperature is 850 DEG C, insulation 16h.
Beneficial effect of the present invention: add intermediate heat treatment in heat treating method of the present invention, significantly improve Nimonic101 nickel-base alloy room temperature tensile intensity and yield strength compared with heat treating method conventional at present, and room temperature unit elongation and relative reduction in area also slightly improve.
Embodiment
Further illustrate technical scheme of the present invention respectively below in conjunction with the embodiments.
Embodiment 1: Nimonic101 nickel-base alloy is carried out solution heat treatment, solution heat treatment temperature 1125 DEG C, is incubated 4 hours after heat penetration, comes out of the stove air cooling to room temperature after insulation terminates; Nimonic101 nickel-base alloy forging after air cooling is carried out intermediate heat treatment at 1020 DEG C, after heat penetration, is incubated 16 hours, come out of the stove after insulation terminates air-cooled to room temperature; Air-cooled rear Nimonic101 nickel-base alloy forging is carried out aging strengthening model at 850 DEG C, after heat penetration, is incubated 16 hours, after insulation terminates, come out of the stove air cooling to room temperature, obtained Nimonic101 nickel-base alloy.
Embodiment 2: Nimonic101 nickel-base alloy forging is carried out solution heat treatment, solution heat treatment temperature 1125 DEG C, is incubated 4 hours after heat penetration, comes out of the stove air cooling to room temperature after insulation terminates; Nimonic101 nickel-base alloy forging after air cooling is carried out intermediate heat treatment at 1050 DEG C, after heat penetration, is incubated 16 hours, come out of the stove after insulation terminates air-cooled to room temperature; Air-cooled rear Nimonic101 nickel-base alloy forging is carried out aging strengthening model at 850 DEG C, after heat penetration, is incubated 16 hours, after insulation terminates, come out of the stove air cooling to room temperature, obtained Nimonic101 nickel-base alloy.
Embodiment 3: Nimonic101 nickel-base alloy forging is carried out solution heat treatment, solution heat treatment temperature 1125 DEG C, is incubated 4 hours after heat penetration, comes out of the stove air cooling to room temperature after insulation terminates; Nimonic101 nickel-base alloy forging after air cooling is carried out intermediate heat treatment at 1080 DEG C, after heat penetration, is incubated 16 hours, come out of the stove after insulation terminates air-cooled to room temperature; Air-cooled rear Nimonic101 nickel-base alloy forging is carried out aging strengthening model at 850 DEG C, after heat penetration, is incubated 16 hours, after insulation terminates, come out of the stove air cooling to room temperature, obtained Nimonic101 nickel-base alloy.
Comparative example: Nimonic101 nickel-base alloy forging is carried out solution heat treatment, solution heat treatment temperature 1125 DEG C, is incubated 4 hours after heat penetration, comes out of the stove air cooling to room temperature after insulation terminates; Nimonic101 nickel-base alloy forging after air cooling is carried out aging strengthening model at 850 DEG C, after heat penetration, is incubated 16 hours, after insulation terminates, come out of the stove air cooling to room temperature, obtained Nimonic101 nickel-base alloy.
Adopt the general testing method in this area to measure tensile strength Rm (MPa), yield strength Rp0.2 (MPa), unit elongation A (%) and relative reduction in area Z (%) in embodiment 1 ~ 3 and comparative example, measurement result is as following table 4:
Table 4
Add intermediate heat treatment in heat treating method of the present invention, significantly improve Nimonic101 nickel-base alloy room temperature tensile intensity and yield strength compared with heat treating method conventional at present, and room temperature unit elongation and relative reduction in area also slightly improve.
It should be noted that and understand, when not departing from the spirit and scope of accompanying claim the present invention for required protection, various amendment and improvement can be made to the present invention of foregoing detailed description.Therefore, the scope of claimed technical scheme is not by the restriction of given any specific exemplary teachings.
Applicant states, the present invention illustrates detailed process equipment and process flow process of the present invention by above-described embodiment, but the present invention is not limited to above-mentioned detailed process equipment and process flow process, namely do not mean that the present invention must rely on above-mentioned detailed process equipment and process flow process and could implement.Person of ordinary skill in the field should understand, any improvement in the present invention, to equivalence replacement and the interpolation of ancillary component, the concrete way choice etc. of each raw material of product of the present invention, all drops within protection scope of the present invention and open scope.
Claims (4)
1. a heat treating method for Nimonic101 nickel-base alloy, is characterized in that, comprises the following steps:
(1) Nimonic101 nickel-base alloy forging is carried out solution heat treatment, air cooling of coming out of the stove;
(2) the Nimonic101 nickel-base alloy forging after air cooling is carried out intermediate heat treatment at 1020 ~ 1080 DEG C, and be incubated 8 ~ 16h, come out of the stove air-cooled;
(3) the Nimonic101 nickel-base alloy forging after air-cooled is carried out aging strengthening model, air cooling of coming out of the stove, obtained Nimonic101 nickel-base alloy.
2. heat treating method according to claim 1, is characterized in that, in described step (1), solution heat treatment temperature is 1125 DEG C, insulation 4h.
3. heat treating method according to claim 1, is characterized in that, described step (2) intermediate heat treatment temperature is 1050 ~ 1080 DEG C, insulation 16h.
4. heat treating method according to claim 1, is characterized in that, described step (3) aging strengthening model temperature is 850 DEG C, insulation 16h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041394A (en) * | 2019-12-31 | 2020-04-21 | 安徽应流铸业有限公司 | Heat treatment process method for forging nickel-based alloy |
| CN113684353A (en) * | 2021-10-27 | 2021-11-23 | 江苏省沙钢钢铁研究院有限公司 | GH2132 alloy and preparation method thereof |
| CN114934157A (en) * | 2022-07-01 | 2022-08-23 | 丹阳市金星镍材有限公司 | Heat treatment process of nickel-based high-temperature alloy for cold heading |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041394A (en) * | 2019-12-31 | 2020-04-21 | 安徽应流铸业有限公司 | Heat treatment process method for forging nickel-based alloy |
| CN113684353A (en) * | 2021-10-27 | 2021-11-23 | 江苏省沙钢钢铁研究院有限公司 | GH2132 alloy and preparation method thereof |
| CN114934157A (en) * | 2022-07-01 | 2022-08-23 | 丹阳市金星镍材有限公司 | Heat treatment process of nickel-based high-temperature alloy for cold heading |
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