Factors Affecting the Cracking Resistances of a Spring Steel Tempered at Different Temperatures

doi:10.1002/srin.202300643

IMR OpenIR

	Factors Affecting the Cracking Resistances of a Spring Steel Tempered at Different Temperatures
	Xia, Bo 1,2,3; Zhang, Peng 1; Wang, Bin 1; Li, Xiaowu 2,3; Zhang, Zhefeng 1
通讯作者	Zhang, Peng(pengzhang@imr.ac.cn) ; Li, Xiaowu(xwli@mail.neu.edu.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2024-01-04
发表期刊	STEEL RESEARCH INTERNATIONAL
ISSN	1611-3683
页码	12
摘要	Cracking resistance is vital to the practical application of spring steels, which consists of fracture toughness (KIC) under the quasistatic loading condition and fatigue crack propagation (FCP) resistance under the cyclic loading condition. In the present study, the relation between the KIC/FCP resistance and microstructure of the 50CrMnSiVNb spring steel tempered at various temperatures is studied. In the results, it is shown that the dislocation density is the main factor influencing the KIC and FCP resistances, and the carbide size/quantity and morphology can also affect the KIC and FCP resistances. Thus, reducing the dislocation density is the most effective method to enhance the cracking resistance of the investigated steel. Moreover, decreasing the aspect ratio and obtaining a moderate size of tempered carbides are also beneficial to the cracking resistance. In addition, free hydrogen atoms can cause intergranular fracture on the fracture surface, worsening the FCP rate. To enhance the FCP resistance, smelting processes need to be improved to reduce the hydrogen content of the investigated steel. Herein, the relation between the KIC/fatigue crack propagation (FCP) resistance and microstructures of the 50CrMnSiVNb steel tempered at various temperatures is studied. The dislocation density is the main factor influencing the KIC and FCP resistances, and the carbide size/quantity and morphology are the secondary factor.Reducing the dislocation density is the most effective method to enhance the cracking resistance.image (c) 2024 WILEY-VCH GmbH
关键词	50CrMnSiVNb steel carbides dislocation density fatigue crack propagation resistance fracture toughness
资助者	National Natural Science Foundation of China ; National Natural Science Foundation of China (NSFC) ; High-Tech Industrialization Cooperation between Jilin Province ; CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University ; National Science and Technology Major Project
DOI	10.1002/srin.202300643
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52001310] ; National Natural Science Foundation of China[52130002] ; National Natural Science Foundation of China[52171108] ; National Natural Science Foundation of China (NSFC) ; High-Tech Industrialization Cooperation between Jilin Province[2020SYHZ0008] ; CAS[XDC04040502] ; Strategic Priority Research Program of the Chinese Academy of Sciences[2021RALKFKT004] ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University[J2019-VI-0019-0134] ; National Science and Technology Major Project
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001136379400001
出版者	WILEY-V C H VERLAG GMBH
引用统计	被引频次：1[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/321006/183261
专题	中国科学院金属研究所
通讯作者	Zhang, Peng; Li, Xiaowu; Zhang, Zhefeng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Peoples R China 3.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Minist Educ, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Xia, Bo,Zhang, Peng,Wang, Bin,et al. Factors Affecting the Cracking Resistances of a Spring Steel Tempered at Different Temperatures[J]. STEEL RESEARCH INTERNATIONAL,2024:12.
APA	Xia, Bo,Zhang, Peng,Wang, Bin,Li, Xiaowu,&Zhang, Zhefeng.(2024).Factors Affecting the Cracking Resistances of a Spring Steel Tempered at Different Temperatures.STEEL RESEARCH INTERNATIONAL,12.
MLA	Xia, Bo,et al."Factors Affecting the Cracking Resistances of a Spring Steel Tempered at Different Temperatures".STEEL RESEARCH INTERNATIONAL (2024):12.