| Microstructural evolution during tempering and intrinsic strengthening mechanisms in a low carbon martensitic stainless bearing steel | |
| Zeng, T. Y.1,2; Li, W.1,2; Wang, N. M.3; Wang, W.1,4; Yang, K.1 | |
| Corresponding Author | Wang, W.(wangw@imr.ac.cn) ; Yang, K.(kyang@imr.ac.cn) |
| 2022-03-02 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 836Pages:12 |
| Abstract | 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. |
| Keyword | Low carbon martensitic stainless bearing steel Mo-rich carbides Yield strength Reverted austenite Strengthening mechanisms |
| Funding Organization | Youth Innovation Promotion Association of Chinese Academy of Sciences ; Chinese Academy of Sciences |
| DOI | 10.1016/j.msea.2022.142736 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Youth Innovation Promotion Association of Chinese Academy of Sciences[2017233] ; Chinese Academy of Sciences |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000761630200002 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173290 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, W.; Yang, K. |
| Affiliation | 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 |
| Recommended Citation 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. |
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