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Effect of a modified quenching on impact toughness of 52100 bearing steels

文献类型：期刊论文

作者Li, Yonghan1,2; Jiang, Zhonghua1,2; Wang, Pei1,2; Li, Dianzhong1,2; Li, Yiyi1
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2023-10-10
卷号160页码:96-108
关键词Austenitizing process Carbides distribution Impact toughness 52100 steels
ISSN号1005-0302
DOI10.1016/j.jmst.2023.02.057
通讯作者Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
英文摘要In order to improve the uniformity of microstructures, and thus enhance the mechanical properties, especially the impact toughness, of 52100 bearing steels, modified quenching heat treatments with different austenitizing processes have been designed. The results show that 740 degrees C is the optimal holding temperature (approaching Ac 1 = 750 degrees C) to improve the impact toughness of the steel by 37% after quenching and low-temperature tempering. Microstructure observations reveal that 740 degrees C holding shortens the nucleation incubation period of austenitization phase transformation, and inhibits the overfast growth of austenite in some regions, which leads to simultaneous nucleation and growth of austenite during austenitizing, and homogeneous dissolution of carbides in different austenite grains. The changes in microstructure evolution improve the microstructure uniformity (carbide and grain size) after quenching. Uniformly distributed carbides and grain size effectively reduce stress concentration and retard crack propagation during impact loading, thus resulting in high impact toughness.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目National Natural Science Foundation of China[52031013] ; Chinese Academy of Sciences[XDC 04010300]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000998000000001
出版者JOURNAL MATER SCI TECHNOL
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/178021]  
专题金属研究所_中国科学院金属研究所
通讯作者Wang, Pei; Li, Dianzhong
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yonghan,Jiang, Zhonghua,Wang, Pei,et al. Effect of a modified quenching on impact toughness of 52100 bearing steels[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,160:96-108.
APA Li, Yonghan,Jiang, Zhonghua,Wang, Pei,Li, Dianzhong,&Li, Yiyi.(2023).Effect of a modified quenching on impact toughness of 52100 bearing steels.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,160,96-108.
MLA Li, Yonghan,et al."Effect of a modified quenching on impact toughness of 52100 bearing steels".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 160(2023):96-108.

入库方式： OAI收割

来源：金属研究所

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