Effects of quenching temperature on the microstructure and impact toughness of 50CrMnSiVNb spring steel

doi:10.1016/j.msea.2023.144856

IMR OpenIR

	Effects of quenching temperature on the microstructure and impact toughness of 50CrMnSiVNb spring steel
	Xia, Bo 1,2; Zhang, Peng 2; Wang, Bin 2; Li, Xiaowu 1; Zhang, Zhefeng 2
通讯作者	Zhang, Peng(pengzhang@imr.ac.cn) ; Li, Xiaowu(xwli@mail.neu.edu.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
	2023-04-12
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	870 页码:14
摘要	50CrMnSiVNb spring steel was quenched at 760, 820, 880, 940 and 990 degrees C to obtain different microstructures and nucleation rates of tempered carbides. The results show that for the QT-760 sample, the microstructure is mainly pearlite due to incomplete austenization. The coarse lamellar cementite significantly deteriorated the impact toughness. For other conditions, the carbide is key factor affecting impact toughness ranging from 90.3 to 120.3 J/cm2. From the perspective of carbide size, the impact toughness is the result of the competition between matrix softening degree and carbide, thus, there should be a moderate optimal carbide size to obtain the optimal impact toughness. Additionally, increasing the aspect ratio of carbide can greatly reduce the optimal carbide size, making the carbides more likely to become a factor of impact toughness deterioration. This is unfavorable to impact toughness. Therefore, to obtain better impact toughness, the quenching temperature should be high enough to ensure that the microstructure is completely austenitized, and the quenching temperature should be adjusted to increase the carbide nucleation, so as to obtain carbides with a smaller aspect ratio and size closer to the optimum carbide size mentioned above. This study enriches the understanding of impact toughness of spring steel and provides a way to improve impact toughness in practical applications.
关键词	Impact toughness Quenching temperature Carbides Nucleation rate
资助者	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 ; China Postdoctoral Science Foundation ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University ; National Science and Technology Major Project
DOI	10.1016/j.msea.2023.144856
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[52001310] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52171108] ; High-tech Industrialization Cooperation between Jilin Province ; CAS[2020SYHZ0008] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04040502] ; China Postdoctoral Science Foundation[2020M670810] ; Open Research Fund from the State Key Laboratory of Rolling and Automation, Northeastern University[2021RALKFKT004] ; National Science and Technology Major Project[J2019 -VI-0019 -0134]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000995830400001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：6[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/321006/178094
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.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Key Lab Anisotropy & Texture Mat,Minist Educ, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Xia, Bo,Zhang, Peng,Wang, Bin,et al. Effects of quenching temperature on the microstructure and impact toughness of 50CrMnSiVNb spring steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2023,870:14.
APA	Xia, Bo,Zhang, Peng,Wang, Bin,Li, Xiaowu,&Zhang, Zhefeng.(2023).Effects of quenching temperature on the microstructure and impact toughness of 50CrMnSiVNb spring steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,870,14.
MLA	Xia, Bo,et al."Effects of quenching temperature on the microstructure and impact toughness of 50CrMnSiVNb spring steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 870(2023):14.