Fatigue strength optimization of high-strength steels by precisely controlling microstructure and inclusions

doi:10.1016/j.jmst.2025.01.018

IMR OpenIR

	Fatigue strength optimization of high-strength steels by precisely controlling microstructure and inclusions
	Xu, Zikuan 1; Wang, Peng 1,2; Zhang, Peng 1,2; Wang, Bin 1; Liu, Yang 1; Luan, Yikun 1,2; Wang, Pei 1,2; Li, Dianzhong 1,2; Zhang, Zhefeng 1,2
通讯作者	Zhang, Peng(pengzhang@imr.ac.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2025-09-20
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	230 页码:165-176
摘要	With the increasing demand for high-performance metallic materials, the improvement of fatigue strength (FS) has become a crucial issue. This study focuses on the AISI 52100 steel, a material with leading fatigue performance and low-cost raw material, aiming to further improve its FS. It is found that the fatigue damage mechanism of 52100 steels with different tensile strengths has undergone significant changes, and the inclusions, mainly nitride and oxide, are key factors limiting the further improvement of FS. Therefore, the size reduction and modification of inclusions were attempted through the rare earth addition and strict control of harmful elements. Combining targeted microstructure adjustment, the FS of the 52100 steel has been further enhanced to similar to 1.6 GPa, exceeding that of other metallic materials (performed in uniaxial tension with a stress ratio of R = 0.1), and thus establishing it as a standout for its exceptional performance-to-cost ratio. By clarifying the influences of different types of inclusions on fatigue performance and establishing the correlation between micro-hardness (or strength) and FS, an optimization strategy for FS improvement of the 52100 steel was proposed. The FS has been improved by approximately 187 MPa at most by implementing this strategy. These achievements provide feasible technical approaches and theoretical foundations for the anti-fatigue design of metallic materials. (c) 2025 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Bearing steel Fatigue strength Inclusion Rare earth element Heat treatment
资助者	National Key Re-search and Development Program of China ; National Natural Science Foundation of China (NSFC) ; IMR Innovation Fund
DOI	10.1016/j.jmst.2025.01.018
收录类别	SCI
语种	英语
资助项目	National Key Re-search and Development Program of China[2022YFB3705200] ; National Natural Science Foundation of China (NSFC)[52321001] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52371123] ; IMR Innovation Fund[2024-PY07]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001443694000001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/191912
专题	中国科学院金属研究所
通讯作者	Zhang, Peng; Zhang, Zhefeng
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, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xu, Zikuan,Wang, Peng,Zhang, Peng,et al. Fatigue strength optimization of high-strength steels by precisely controlling microstructure and inclusions[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,230:165-176.
APA	Xu, Zikuan.,Wang, Peng.,Zhang, Peng.,Wang, Bin.,Liu, Yang.,...&Zhang, Zhefeng.(2025).Fatigue strength optimization of high-strength steels by precisely controlling microstructure and inclusions.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,230,165-176.
MLA	Xu, Zikuan,et al."Fatigue strength optimization of high-strength steels by precisely controlling microstructure and inclusions".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 230(2025):165-176.