GH2150A alloy heat treatment process, GH2150A alloy and application
Through the heat treatment process of solid solution, oil-cooling, aging and air-cooling treatment of GH2150A alloy forgings, the problem of decreasing grain size on the surface of the forgings is solved, the grain size and mechanical properties are improved, and the flaw detection level A and above standards are met.
Patent Information
- Application Number
- CN202411560044.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-02-11
AI Technical Summary
In the existing GH2150A alloy heat treatment process, the grain size of the forging surface decreases and is difficult to improve.
A heat treatment process including preparation of alloys, solution treatment, oil-cooling treatment, aging treatment and air-cooling treatment are adopted. The specific steps include: forging the GH2150A alloy forgings, performing solid solution treatment (temperature is 1050℃~1080℃), then performing oil-cooling treatment, followed by aging treatment (temperature is 690℃~800℃, and insulation time is 18 h~23 h ),最后进行空冷处理。
Through this heat treatment process, the surface grain size of the forgings is significantly improved, the clutter level and bottom loss meet the A-level standards or above, and the mechanical performance is also improved.
Smart Images
Figure CN119411045A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of alloy heat treatment, and in particular to a GH2150A alloy heat treatment process, a GH2150A alloy and applications. Background Art
[0002] GH2150A is a Fe-Ni-Cr based precipitation hardening deformation high temperature corrosion resistant alloy, with a long-term use temperature of less than 700℃ and a short-term use temperature of 800℃. The alloy is added with chromium, tungsten and molybdenum elements for solid solution strengthening, and titanium, aluminum and niobium elements are added to form an aging precipitation phase. The alloy has high strength, good plasticity, good cold formability, welding and cutting performance. This alloy is often used to make high-thrust aircraft engine high-pressure compressor stators and rotor blades, as well as load-bearing and high-load-bearing structural parts.
[0003] Since this alloy part is often used as an important part of the engine, the parts have higher requirements for organization and flaw detection.
[0004] In the existing heat treatment process of GH2150A, the solution temperature is generally between 1000℃ and 1130℃, and the specific temperature may be fine-tuned according to the product form and required performance. However, the surface grain size of the forging after heat treatment will decrease, so it is necessary to improve the pretreatment process so that the surface grain size grade of the forging treated by the heat treatment process can be improved. Summary of the invention
[0005] In order to solve at least one of the above technical problems, a heat treatment process capable of improving the surface grain size grade of forgings is developed. The present application provides a GH2150A alloy heat treatment process, a GH2150A alloy and applications.
[0006] On the one hand, the present application provides a GH2150A alloy heat treatment process, comprising the following steps: S1. Preparation of alloy GH2150A alloy forgings were obtained by forging, and the surface grain size of the forgings was tested; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C to 1080°C; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment The forgings treated in S3 are subjected to aging treatment at a temperature of 690°C to 800°C and a holding time of 18 h to 23 h, and the forgings are air-cooled after the treatment; S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0007] Optionally, S1. In preparing the alloy, the surface grain size of the forging must meet the requirements of level 4 or above.
[0008] Optionally, in S2, solution treatment, the time is 210min±10min.
[0009] Optionally, the temperature in S2, the solution treatment, is inversely proportional to the temperature in S4, the aging treatment.
[0010] Optionally, when the temperature in S2, solution treatment, is 1050°C, the temperature in S4, aging treatment, is 800°C.
[0011] Optionally, when the temperature in S2, solution treatment, is 1080°C, the temperature in S4, aging treatment, is 690°C.
[0012] Optionally, S4, the temperature in the aging treatment is inversely proportional to the time.
[0013] Optionally, in S4, the temperature in the aging treatment is 690°C and the time is 23h.
[0014] Optionally, in S4, the temperature in the aging treatment is 800°C and the time is 18 hours.
[0015] Optionally, S4, aging treatment, includes two aging treatments, namely: S4.1 First aging treatment The temperature is 750℃~800℃, and the holding time is 5h~8h; S4.2 Second aging treatment The temperature is 690℃~750℃, and the holding time is 10 h ~18 h.
[0016] Optionally, the temperature in the first aging treatment in S4.1 is inversely proportional to the temperature in the second aging treatment in S4.2.
[0017] Optionally, the holding time in the first aging treatment in S4.1 is inversely proportional to the holding time in the second aging treatment in S4.2.
[0018] Optionally, S4.1 the temperature in the first aging treatment is inversely proportional to the holding time.
[0019] Optionally, S4.2 the temperature in the second aging treatment is inversely proportional to the holding time.
[0020] Optionally, after the first aging treatment in S4.1 and before the second aging treatment in S4.2, air cooling treatment is performed.
[0021] In a second aspect, the present application also provides a GH2150A alloy prepared by any of the above-mentioned GH2150A alloy heat treatment processes.
[0022] On the third aspect, the present application also provides the application of the above-mentioned GH2150A alloy in aerospace engines, wherein the long-term use temperature thereof does not exceed 750°C, and the short-term temperature does not exceed 800°C.
[0023] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The surface grain size of the forgings treated by the pretreatment process of this application can be improved compared with that before treatment; 2. The forgings treated by the pretreatment process of this application have a noise level of less than Φ0.8-6dB and a bottom loss of less than 50%, which can meet the flaw detection standards of Grade A or above; 3. The mechanical properties of the forgings treated by the pretreatment process of this application are improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a scanning electron microscope image of the forging before heat treatment in Comparative Example 1 of the present application; Figure 2 This is a scanning electron microscope image of the forging before heat treatment in Example 1 of the present application; Figure 3 This is a scanning electron microscope image of the forging before heat treatment in Example 2 of the present application; Figure 4 This is a scanning electron microscope image of the forging before heat treatment in Comparative Example 2 of the present application; Figure 5 This is a scanning electron microscope image of the forging after heat treatment in Comparative Example 1 of the present application; Figure 6 This is a scanning electron microscope image of the forging after heat treatment in Example 1 of the present application; Figure 7 This is a scanning electron microscope image of the forging after heat treatment in Example 2 of the present application; Figure 8 This is a scanning electron microscope image of the forging after heat treatment in Comparative Example 2 of the present application. DETAILED DESCRIPTION
[0025] The present application is further described in detail below with reference to the accompanying drawings and embodiments.
[0026] In the following examples of the present application, unless otherwise specified, the main components involved were purchased from commercially available products. Specific embodiments Example 1 This embodiment provides a GH2150A alloy heat treatment process.
[0028] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 2 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C (≤1050°C for charging the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment The forgings treated in S3 were subjected to aging treatment at a temperature of 800°C for 18 h, and the forgings were air-cooled after treatment; S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0029] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0030] The forgings prepared above were subjected to physical and chemical tests, such as Figure 6 As shown, the grain size of the forging is level 4, and the mechanical properties at room temperature are shown in Table 1.
[0031] Example 2 This embodiment provides a GH2150A alloy heat treatment process.
[0032] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 3 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1080°C (≤1080°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment The forgings treated in S3 were subjected to aging treatment at a temperature of 690°C for a holding time of 23 h, and the forgings were air-cooled after treatment; S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0033] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0034] The forgings prepared above were subjected to physical and chemical tests, such as Figure 7 As shown, the grain size of the forging is 5.5, and the mechanical properties at room temperature are shown in Table 1.
[0035] Comparative Example 1 This comparative example provides a GH2150A alloy heat treatment process.
[0036] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 1 As shown, it is level 5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1020°C (≤1020°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment The forgings treated in S3 were subjected to aging treatment at a temperature of 800°C for 18 h, and the forgings were air-cooled after treatment; S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0037] The forgings prepared above were tested for flaws, and the noise of the forgings exceeded the standard (measured Φ0.8-3dB), and the bottom loss was less than 50%. When the flaw detection standard was reduced to Class A, the flaw detection noise was qualified and met the standard requirements.
[0038] The forgings prepared above were subjected to physical and chemical tests, such as Figure 5 As shown, the grain size of the forging is level 2, and the mechanical properties at room temperature are shown in Table 1.
[0039] Comparative Example 2 This comparative example provides a GH2150A alloy heat treatment process.
[0040] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 4 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1100°C (≤1100°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment The forgings treated in S3 were subjected to aging treatment at a temperature of 690°C for a holding time of 23 h, and the forgings were air-cooled after treatment; S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0041] The forgings prepared as above were inspected for flaws, and the noise of the forgings exceeded the standard (measured Φ0.8-3dB~0.8-5dB), and the bottom loss was less than 50%.
[0042] The forgings prepared above were subjected to physical and chemical tests, such as Figure 8 As shown, the grain size of the forging is level 3, and the mechanical properties at room temperature are shown in Table 1.
[0043] Table 1 Mechanical properties test results of forgings in Examples 1-2 and Comparative Examples 1-2 at room temperature It can be seen from Examples 1-2, Comparative Examples 1-2 and Table 1 that in the technical solution of the present application, the GH2150A alloy is solid-solutionized in the range of 1000°C-1130°C, the solid-solution temperature decreases, the grain size is refined, and insufficient crystallization occurs below 1050°C; the GH2150A alloy is solid-solutionized in the range of 1000°C-1130°C, and its flaw detection effect is better at 1050°C-1080°C; the GH2150A alloy is solid-solutionized in the range of 1000°C-1130°C, the solid-solution temperature decreases, the strength increases, and the plasticity decreases.
[0044] Therefore, it can be seen that in the technical solution of the present application, when the temperature is set in the range of 1050°C to 1080°C during the solution treatment of the GH2150A alloy, the overall performance of the forging is better. In particular, in Example 2 where the solution temperature is 1080°C, the surface grain size of the forging before solution treatment is 4.5, and after solution treatment and aging treatment, the surface grain size reaches 5.5.
[0045] Examples 3 to 6 provide a different heat treatment process for GH2150A alloy, which differs from Example 1 in that the aging treatment is performed twice, as described below.
[0046] Example 3 This embodiment provides a GH2150A alloy heat treatment process.
[0047] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 2 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C (≤1050°C for charging the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 750℃ and the holding time is 8h; S4.2 Second aging treatment The temperature is 690℃ and the holding time is 18h.
[0048] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0049] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0050] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was grade 4, and the mechanical properties at room temperature were shown in Table 2.
[0051] Example 4 This embodiment provides a GH2150A alloy heat treatment process.
[0052] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 2 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C (≤1050°C for charging the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 750℃ and the holding time is 8h; S4.2 Second aging treatment The temperature is 750℃ and the holding time is 10h.
[0053] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0054] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0055] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was 4.5, and the mechanical properties at room temperature were shown in Table 2.
[0056] Example 5 This embodiment provides a GH2150A alloy heat treatment process.
[0057] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 2 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C (≤1050°C for charging the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 800℃ and the holding time is 5h; S4.2 Second aging treatment The temperature is 690℃ and the holding time is 18h.
[0058] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0059] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0060] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was 4.5, and the mechanical properties at room temperature were shown in Table 2.
[0061] Example 6 This embodiment provides a GH2150A alloy heat treatment process.
[0062] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 2 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C (≤1050°C for charging the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 800℃ and the holding time is 5h; S4.2 Second aging treatment The temperature is 750℃ and the holding time is 10h.
[0063] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0064] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0065] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was grade 4, and the mechanical properties at room temperature were shown in Table 2.
[0066] Table 2 Mechanical properties test results of forgings in Examples 3 to 6 at room temperature Through implementation 3 to 6 and Table 2, it can be seen that in the technical scheme of the present application, when the temperature in the solution treatment of the GH2150A alloy is set at 1050°C, the aging treatment is carried out twice, the temperature of the first aging treatment is 750°C, the treatment time is 8h; the temperature of the second aging treatment is 750°C, the treatment time is 10h in Example 4, and the temperature of the first aging treatment is 800°C, the treatment time is 5h; the temperature of the second aging treatment is 690°C, and the treatment time is 18h in Example 5, the grain size of the prepared forging can reach 4.5, and the mechanical properties of the forging are improved.
[0067] Therefore, it can be seen that in the technical solution of the present application, when the temperatures of the two aging treatments are inversely proportional, and the time of each aging treatment is inversely proportional to the temperature of the aging treatment, the grain size grade of the prepared forgings is improved, and the mechanical properties of the forgings are improved.
[0068] Examples 7 to 10 provide a different heat treatment process for the GH2150A alloy, which differs from Example 2 in that the aging treatment is performed twice, as described below.
[0069] Example 7 This embodiment provides a GH2150A alloy heat treatment process.
[0070] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 3 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1080°C (≤1080°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 750℃ and the holding time is 8h; S4.2 Second aging treatment The temperature is 690℃ and the holding time is 18h.
[0071] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0072] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0073] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was 5.5, and the mechanical properties at room temperature were shown in Table 3.
[0074] Example 8 This embodiment provides a GH2150A alloy heat treatment process.
[0075] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 3 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1080°C (≤1080°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 750℃ and the holding time is 8h; S4.2 Second aging treatment The temperature is 750℃ and the holding time is 10h.
[0076] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0077] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0078] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was grade 6, and the mechanical properties at room temperature are shown in Table 3.
[0079] Example 9 This embodiment provides a GH2150A alloy heat treatment process.
[0080] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 3 As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1080°C (≤1080°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 800℃ and the holding time is 5h; S4.2 Second aging treatment The temperature is 690℃ and the holding time is 18h.
[0081] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0082] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0083] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was grade 6, and the mechanical properties at room temperature are shown in Table 3.
[0084] Example 10 This embodiment provides a GH2150A alloy heat treatment process.
[0085] S1. Preparation of alloy GH2150A alloy forgings are obtained by forging with the existing process, and the surface grain size of the forgings is tested. Figure 3As shown, it is level 4.5; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1080°C (≤1080°C for charging into the furnace, and the temperature is raised along with the furnace), and the temperature is kept for 210min±10min; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment S4.1 First aging treatment The temperature is 800℃ and the holding time is 5h; S4.2 Second aging treatment The temperature is 750℃ and the holding time is 10h.
[0086] S5. Air cooling treatment The forgings treated in S4 are air-cooled.
[0087] The forgings prepared above were tested for flaws, and no excessive display was found on the forgings, the noise level was below Φ0.8-6dB, and the bottom loss was less than 50%, which met the standard requirements.
[0088] The forgings prepared above were subjected to physical and chemical tests. The grain size of the forgings was grade 5, and the mechanical properties at room temperature are shown in Table 3.
[0089] Table 3 Mechanical properties test results of forgings in Examples 7 to 10 at room temperature Through implementation 7 to 10 and Table 3, it can be seen that in the technical scheme of the present application, when the temperature in the solution treatment of the GH2150A alloy is set at 1080°C, the aging treatment is carried out twice, the temperature of the first aging treatment is 750°C, and the treatment time is 8h; the temperature of the second aging treatment is 750°C, and the treatment time is 10h in Example 8, and the temperature of the first aging treatment is 800°C, and the treatment time is 5h; the temperature of the second aging treatment is 690°C, and the treatment time is 18h in Example 9, the grain size of the prepared forging can reach 6, and the mechanical properties of the forging are improved.
[0090] Therefore, it can be seen that in the technical solution of the present application, when the temperatures of the two aging treatments are inversely proportional, and the time of each aging treatment is inversely proportional to the temperature of the aging treatment, the grain size grade of the prepared forgings is improved, and the mechanical properties of the forgings are improved.
[0091] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A GH2150A alloy heat treatment process, characterized in that: The following steps are involved: S1. Preparation of alloy GH2150A alloy forgings were obtained by forging, and the surface grain size of the forgings was tested; S2. Solution treatment The forgings prepared in S1 are subjected to solution treatment at a temperature of 1050°C to 1080°C; S3, Oil cooling treatment The forgings treated in S2 are subjected to oil cooling; S4. Aging treatment The forgings treated in S3 are subjected to aging treatment at a temperature of 690°C to 800°C and a holding time of 18 h to 23 h, and the forgings are air-cooled after the treatment; S5. Air cooling treatment The forgings treated in S4 are air-cooled.
2. The heat treatment process according to claim 1, characterized in that: S1. In the preparation of alloys, the surface grain size of forgings must meet the requirements of level 4 or above.
3. The heat treatment process according to claim 1, characterized in that: S2. Solution treatment, time is 210min±10min.
4. The heat treatment process according to claim 1, characterized in that: S2, the temperature during solution treatment, is inversely proportional to S4, the temperature during aging treatment.
5. The heat treatment process according to claim 1, characterized in that: When the temperature in S2, solution treatment, is 1050°C, the temperature in S4, aging treatment, is 800°C.
6. The heat treatment process according to claim 1, characterized in that: When the temperature in S2, solution treatment, is 1080°C, the temperature in S4, aging treatment, is 690°C.
7. The heat treatment process according to claim 1, characterized in that: S4. The temperature during aging treatment is inversely proportional to time.
8. The heat treatment process according to claim 1, characterized in that: S4. The temperature in the aging treatment is 690°C and the time is 23h.
9. A GH2150A alloy prepared by the GH2150A alloy heat treatment process according to any one of claims 1 to 8.
10. Use of the GH2150A alloy prepared in claim 9 in aerospace engines, wherein the long-term use temperature does not exceed 750°C and the short-term use temperature does not exceed 800°C.