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Microstructural evolution during tempering and intrinsic strengthening mechanisms in a low carbon martensitic stainless bearing steel

文献类型：期刊论文

作者Zeng, T. Y.1,2; Li, W.1,2; Wang, N. M.3; Wang, W.1,4; Yang, K.1
刊名MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
出版日期2022-03-02
卷号836页码:12
ISSN号0921-5093
关键词Low carbon martensitic stainless bearing steel Mo-rich carbides Yield strength Reverted austenite Strengthening mechanisms
DOI10.1016/j.msea.2022.142736
通讯作者Wang, W.(wangw@imr.ac.cn) ; Yang, K.(kyang@imr.ac.cn)
英文摘要Herein, the microstructural evolution and corresponding change in tensile properties in a low carbon martensitic stainless bearing steel during tempering were studied. The results showed that there was no delta-ferrite in the studied steel after austenitizing at 1000-1100 degrees C, and the volume fraction of austenite increased with increasing the tempering temperature from 470 degrees C to 590 degrees C due to the formation of reverted austenite. According to the EDS measurements, the reverted austenite was rich in C, Cr and Mo, other than previously assumed Co and Ni. On top of that, a considerable number of nanosized Mo-rich carbides with globular and rod-like morphologies were found after tempering at 530 degrees C, and further coarsened after tempering at 590 degrees C. Along with the change of phase constituents, the dislocation density decreased, and martensite block width increased as the tempering temperature increased. All the evolution of microstructures jointly contributed to an initial increase and then a decrease in the strength, and various strengthening mechanisms contributed to the change of yield strength were quantitatively analyzed and discussed in the study.
资助项目Youth Innovation Promotion Association of Chinese Academy of Sciences[2017233] ; Chinese Academy of Sciences
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000761630200002
资助机构Youth Innovation Promotion Association of Chinese Academy of Sciences ; Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/173289]  
专题金属研究所_中国科学院金属研究所
通讯作者Wang, W.; Yang, K.
作者单位1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.New Land Bearing Co Ltd, Ningbo 315300, Peoples R China
4.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, T. Y.,Li, W.,Wang, N. M.,et al. Microstructural evolution during tempering and intrinsic strengthening mechanisms in a low carbon martensitic stainless bearing steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,836:12.
APA Zeng, T. Y.,Li, W.,Wang, N. M.,Wang, W.,&Yang, K..(2022).Microstructural evolution during tempering and intrinsic strengthening mechanisms in a low carbon martensitic stainless bearing steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,836,12.
MLA Zeng, T. Y.,et al."Microstructural evolution during tempering and intrinsic strengthening mechanisms in a low carbon martensitic stainless bearing steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 836(2022):12.

入库方式： OAI收割

来源：金属研究所

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