Transactions of Materials and Heat Treatment

Title：Quantitative study on synergistic accurate control of deformation-phase transformation for high strength and toughness microstructure in aero-bearing ring matrix

Authors： Wang Feng1 2 Du Yuchen1 2 Liu Yujian3 Qian Dongsheng1 2

Unit：

KeyWords：

ClassificationCode：TG162.6

year,vol(issue):pagenumber：2021,46(9):99-104

Abstract：

For the aero-engine bearing ring matrix, combining with the near-net cold rolling and martensite-bainite multiphase heat treatment process were combined. The quantitative relationship between processes, microstructures and properties under the synergistic effect of deformation-phase transformation was studied. Then, and the synergistic accurate quantitative control of deformation-phase transformation for high strength and toughness microstructure in the a certain type of aero-bearing matrix was realized. The results show that the size of bainite size is significantly refined by cold rolling deformation, and the strength and toughness can be is significantly improved by controlling the cold rolling deformation at 20%. Through the optimization of temperature and time of austempering, the impact toughness can be further improved by controlling bainite content between 10% and 12%. Based on the accurate control research on processing condition of cold rolling deformation and martensite-bainite multiphase heat treatment, the small-batch trial production of the aero-engine main bearing is realized, which exhibits a remarkable technical effect.

Funds：

国家自然科学基金资助项目（51875426）；教育部创新团队发展计划（IRT_17R83）；111计划（B17034）；湖北省技术创新专项重大项目（2019AAA001）

王丰（1992-），男，博士，助理研究员 E-mail：wangfengwhut@163.com 通信作者：钱东升（1982-），男，博士，教授 E-mail：qiands@whut.edu.cn

Reference：

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