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

文献类型：期刊论文

作者Xia, Bo1,2; Zhang, Peng1; Wang, Bin1; Li, Xiaowu2; Zhang, Zhefeng1
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2023-04-12
卷号870页码:14
关键词Impact toughness Quenching temperature Carbides Nucleation rate
ISSN号0921-5093
DOI10.1016/j.msea.2023.144856
通讯作者Zhang, Peng(pengzhang@imr.ac.cn) ; Li, Xiaowu(xwli@mail.neu.edu.cn) ; Zhang, Zhefeng(zhfzhang@imr.ac.cn)
英文摘要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.
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
语种英语
WOS记录号WOS:000995830400001
出版者ELSEVIER SCIENCE SA
资助机构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
源URL[http://ir.imr.ac.cn/handle/321006/178093]  
专题金属研究所_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, 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. 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.

入库方式： OAI收割

来源：金属研究所

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