| Effect of a modified quenching on impact toughness of 52100 bearing steels | |
| Li, Yonghan1,2; Jiang, Zhonghua1,2; Wang, Pei1,2; Li, Dianzhong1,2; Li, Yiyi1 | |
| Corresponding Author | Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn) |
| 2023-10-10 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 160Pages:96-108 |
| Abstract | In order to improve the uniformity of microstructures, and thus enhance the mechanical properties, especially the impact toughness, of 52100 bearing steels, modified quenching heat treatments with different austenitizing processes have been designed. The results show that 740 degrees C is the optimal holding temperature (approaching Ac 1 = 750 degrees C) to improve the impact toughness of the steel by 37% after quenching and low-temperature tempering. Microstructure observations reveal that 740 degrees C holding shortens the nucleation incubation period of austenitization phase transformation, and inhibits the overfast growth of austenite in some regions, which leads to simultaneous nucleation and growth of austenite during austenitizing, and homogeneous dissolution of carbides in different austenite grains. The changes in microstructure evolution improve the microstructure uniformity (carbide and grain size) after quenching. Uniformly distributed carbides and grain size effectively reduce stress concentration and retard crack propagation during impact loading, thus resulting in high impact toughness.(c) 2023 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Austenitizing process Carbides distribution Impact toughness 52100 steels |
| Funding Organization | National Natural Science Foundation of China ; Chinese Academy of Sciences |
| DOI | 10.1016/j.jmst.2023.02.057 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[52031013] ; Chinese Academy of Sciences[XDC 04010300] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000998000000001 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/178022 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Pei; Li, Dianzhong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Yonghan,Jiang, Zhonghua,Wang, Pei,et al. Effect of a modified quenching on impact toughness of 52100 bearing steels[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2023,160:96-108. |
| APA | Li, Yonghan,Jiang, Zhonghua,Wang, Pei,Li, Dianzhong,&Li, Yiyi.(2023).Effect of a modified quenching on impact toughness of 52100 bearing steels.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,160,96-108. |
| MLA | Li, Yonghan,et al."Effect of a modified quenching on impact toughness of 52100 bearing steels".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 160(2023):96-108. |
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