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

doi:10.1016/j.jmst.2023.02.057

IMR OpenIR

	Effect of a modified quenching on impact toughness of 52100 bearing steels
	Li, Yonghan 1,2; Jiang, Zhonghua 1,2; Wang, Pei 1,2; Li, Dianzhong 1,2; Li, Yiyi 1
通讯作者	Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
	2023-10-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	160 页码:96-108
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.
关键词	Austenitizing process Carbides distribution Impact toughness 52100 steels
资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences
DOI	10.1016/j.jmst.2023.02.057
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000998000000001
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178022
专题	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.