The formation mechanism of S-ferrite and its evolution behavior in M50NiL steel
文献类型：期刊论文
| 作者 | Wang, Shijie1,2; Lu, Xingyu1,2; Guan, Jian2; Liu, Hongwei2; Lei, Chengshuai2; Sun, Chen2; Zhou, Lina3; Liu, Ming3; Huang, Ju4; Cao, Yanfei2 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 31页码:3551-3562 |
| 关键词 | Bearing steel Microsegregation S -Ferrite Carbide Microstructure evolution |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2024.07.088 |
| 通讯作者 | Liu, Hongwei(hwliu@imr.ac.cn) ; Lei, Chengshuai(cslei@imr.ac.cn) ; Sun, Chen(csun15s@imr.ac.cn) |
| 英文摘要 | Residual S-ferrite is ubiquitous in M50NiL bearing steel and seriously deteriorates impact toughness. In the present work, the formation mechanism of S-ferrite in M50NiL steel and the influence of element segregation on its formation process were investigated. The residual S-ferrite was proved to form directly from the final liquid phase at the end of solidification due to serious segregation of Mo and V elements. Calculation results indicate that the segregation of Mo and V elements expanded the "L + S" two-phase region and stabilized S-ferrite. Due to the high concentration of Mo and V, large-sized V-rich MC and Mo-rich M2C carbides would precipitate in S-ferrite at 900-1200 degrees C if the cooling rate is slow. When kept at 1200 degrees C for no more than 30 min, Mo and V elements derived from the decomposition of large-sized carbides are preferentially diffused into S-ferrite, enhancing the stability of S-ferrite. To achieve the effective elimination of S-ferrite in M50NiL steel, it is necessary to keep the ingot at 1200 degrees C for at least 20 h. |
| 资助项目 | National Key Research and Devel-opment Program of China[2018YFA0702900] ; National Natural Science Foundation of China[52321001] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001275418800001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Devel-opment Program of China ; National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Hongwei; Lei, Chengshuai; Sun, Chen |
| 作者单位 | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.AECC Harbin Bearing Co Ltd, Harbin 150025, Peoples R China 4.AECC Guiyang Engine Design Res Inst, Guiyang 550081, Peoples R China 5.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Shijie,Lu, Xingyu,Guan, Jian,et al. The formation mechanism of S-ferrite and its evolution behavior in M50NiL steel[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,31:3551-3562. |
| APA | Wang, Shijie.,Lu, Xingyu.,Guan, Jian.,Liu, Hongwei.,Lei, Chengshuai.,...&Li, Dianzhong.(2024).The formation mechanism of S-ferrite and its evolution behavior in M50NiL steel.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,31,3551-3562. |
| MLA | Wang, Shijie,et al."The formation mechanism of S-ferrite and its evolution behavior in M50NiL steel".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 31(2024):3551-3562. |
入库方式： OAI收割
来源：金属研究所
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