Effect of cryogenic treatment on residual stress of YG8 cemented carbide/42CrMo steel brazed joints

doi:10.13251/j.issn.0254-6051.2021.10.036

Abstract

Abstract: Welding process model and cryogenic treatment process model of YG8 cemented carbide/42CrMo steel brazed joint were established through ANSYS simulation software, and the residual stress distribution on the joint surface was analyzed and compared with the brazed joint after cryogenic and tempering treatments. The results show that cryogenic treatment can cause the formation of residual compressive stress on the 42CrMo steel side of the brazed joint, and the influence of cryogenic temperature on the residual compressive stress is more obvious than the number of cryogenic treatments. The optimal cryogenic process is treating at -160 ℃ for three times, and the simulation result is not much different from the experimental one, indicating that the established models have a certain degree of reliability.

Key words: YG8 cemented carbide/42CrMo steel brazed joint, cryogenic treatment, residual stress, numerical simulation

CLC Number:

TG156.91

Yuan Ruize, Yan Xianguo, Chen Zhi, Guo Rui, Lan Dongsheng, Su Hang, Yao Yongchao. Effect of cryogenic treatment on residual stress of YG8 cemented carbide/42CrMo steel brazed joints[J]. Heat Treatment of Metals, 2021, 46(10): 204-208.

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Effect of cryogenic treatment on residual stress of YG8 cemented carbide/42CrMo steel brazed joints

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