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| Study on Processing Characteristics of Superalloy GH141 |
| NIU Yongji 1,2, ZHANG Zhiwei2 , AN Ning2 , GAO Yang 2 |
| (1. School of Material Science and Engineering, University of Science and Technology Beijing，Beijing 100083，China; 2. Beijing Beiye Functional Materials Corporation, Beijing 100192, China) |
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Abstract In this paper, the cold work hardening characteristics, static recrystallization characteristics and the effect of heat treatment on the hardness and microstructure of GH141 nickel-based deformation superalloy had been studied. The results show that the solution temperature of GH141 alloy must be above 1060℃. The cooling speed has a significant effect on the hardness, and the effect of water-cooling softening is obviously better than air cooling, which shows that precipitation hardening covers the softening effect of heat treatment during cooling. It needs to be heated above 1050℃for γ′ large-scale dissolution. The recrystallization of the cold deformed alloy can be completed at 1050℃ , and the grain coarsening will occur above 1120℃.
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2021, 
