锻压技术

航发轴承基体高强韧组织形变-相变协同精确控制定量研究

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

作者：王丰1 2 杜宇辰1 2 刘雨健3 钱东升1 2

单位：1. 武汉理工大学材料科学与工程学院 2. 湖北省材料绿色精密成形工程技术研究中心 3.中国航发哈尔滨轴承有限公司

关键词：航发轴承强韧性近净冷轧环马贝复合相变热处理精确控制

分类号：TG162.6

出版年,卷(期):页码：2021,46(9):99-104

摘要：

以航发轴承套圈基体为研究对象，将近净冷轧成形和马贝复合相变热处理工艺相结合，研究基于形变-相变协同作用下的工艺-组织-性能定量关系，进而实现某型航发轴承基体高强韧组织的形变-相变协同精确定量控制。结果表明：冷轧变形显著细化了贝氏体的尺寸，控制冷轧变形量在20%能够使回火后的强韧性明显改善。通过优化等温淬火的温度和时间，控制贝氏体的含量在10%~12%之间能够使冲击韧性进一步提升。基于航发轴承基体冷轧形变和马贝复合相变热处理工艺条件的精确控制研究，对某型号航发主轴承进行小批量试制，技术效果显著。

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.

基金项目：

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

参考文献：

[1]Bhadeshia H K D H. Steels for bearings[J]. Progress in Materials Science, 2012, 57(2): 268-435.

[2]Wang F, Qian D S, Mao H J, et al. Evolution of microstructure and mechanical properties during tempering of 8Cr4Mo4V steel with Bainite/Martensite duplex structure[J]. Journal of Materials Research and Technology, 2020, 9(3): 6712-6722.

[3]钱东升, 王丰, 华林, 等. 提高M50轴承基体强韧性和尺寸稳定性的成形制造方法[P]. 中国：ZL201810117501.6，2018-08-17.

Qian D S, Wang F, Hua L, et al. Forming and manufacturing method for improving strength, toughness and dimensional stability of M50 bearing matrix[P]. China: ZL201810117501.6，2018-08-17.

[4]Qian D S, He Y G, Wang F, et al. Microstructure and mechanical properties of M50 steel by combining cold rolling with austempering[J]. Metals-Open Access Metallurgy Journal, 2020, 10(3): 381.

[5]Wang F, Qian D S, Hua L, et al. The effect of prior cold rolling on the carbide dissolution, precipitation and dry wear behaviors of 8Cr4Mo4V bearing steel[J]. Tribology International, 2019, 132: 253-264.

[6]Wang F, Qian D S, Lu X H. Effect of prior cold deformation on the stability of retained austenite in GCr15 bearing steel[J]. Acta Metallurgica Sinica-English Letters, 2019, 32: 107-115.

[7]钱东升, 华林, 路博涵, 等. 一种轴承滚道流线控制近净成形工艺[P]. 中国：ZL201911420616.3，2020-06-05.

Qian D S, Hua L, Lu B H, et al. A streamline controlled near net shape forming process for bearing raceway[P]. China: ZL201911420616.3，2020-06-05.

[8]李伟, 楚志兵, 帅美荣, 等. 皮尔格冷轧304不锈钢管组织及性能研究[J]. 锻压技术, 2019, 44(6): 53-58.

Li W, Chu Z B, Shuai M R, et al. Research on microstructure and properties for Pilger cold rolled 304 stainless steel tube [J]. Forging & Stamping Technology, 2019, 44(6): 53-58.

[9]Wang F, Qian D S, Hua L, et al. Tempering response and improved mechanical properties in secondary hardened steel by introducing an optimized austempering process[J]. Materials Science & Engineering: A, 2021, 807: 140895.

[10]Tomita Y, Okabayashi K. Mechanical properties of 0.40 pct C-Ni-Cr-Mo high strength steel having a mixed structure of martensite and bainite[J]. Metallurgical Transactions A, 1985, 16(1): 73-82.

[11]张俊峰, 邓璘. 压缩变形温度对车用贝氏体钢动力学及组织演变的影响[J]. 锻压技术, 2019, 44(3): 164-168.

Zhang J F, Deng L. Influence of compression deformation temperature on dynamics and microstructure evolution of bainitic steel for vehicle[J]. Forging & Stamping Technology, 2019, 44(3): 164-168.

[12]Wang F, Qian D S, Hua L, et al. Voids healing and carbide refinement of cold rolled M50 bearing steel by electropulsing treatment[J]. Scientific Reports, 2019, 9(1): 11315.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】