Role of Solute Rare Earth in Altering Phase Transformations during Continuous Cooling of a Low Alloy Cr-Mo-V Steel
文献类型：期刊论文
| 作者 | Jiang, Zhonghua; Wang, Pei; Li, Dianzhong |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2023-07-17 |
| 页码 | 13 |
| 关键词 | Low-alloy Cr-Mo-V steel Rare earth Phase transformation Bainitic microstructures Continuous cooling transformation |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-023-01570-3 |
| 通讯作者 | Jiang, Zhonghua(zhjiang12s@imr.ac.cn) ; Wang, Pei(pwang@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn) |
| 英文摘要 | Effects of solute rare earth (RE) on continuous cooling transformation of a low-alloy Cr-Mo-V bainitic steel are investigated in detail by dilatometry, optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Microstructures appeared in thermal dilatometric samples of both low-alloy Cr-Mo-V (RE) steels are composed of quasi-polygonal ferrite (QPF), degenerate pearlite (DP), granular bainite (GB), lath bainite (LB), and martensite (M) depending on cooling rate. When cooling rate is lower than 2 & DEG;C/s, the addition of RE suppresses QPF transformation, and thereby inducing a broader transformation region of GB. When cooling rate ranges from 2 to 100 & DEG;C/s, the addition of RE decreases the start temperature of bainitic transformation distinctly, which results in finer bainitic ferrite grain size and higher dislocation density. The addition of RE can enhance the hardness of the low alloy Cr-Mo-V steel by affecting the aforementioned diffusional and/or partly displacive transformation. However, when cooling rate increases up to 150 & DEG;C/s, two steels have the same hardness value of about 435 HV due to only martensite obtained by displacive transformation. |
| 资助项目 | National Natural Science Foundation of China[52101059] ; Shenyang National Laboratory for Materials Science[L2019F48] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001031469400001 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178555]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Jiang, Zhonghua; Wang, Pei; Li, Dianzhong |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Zhonghua,Wang, Pei,Li, Dianzhong. Role of Solute Rare Earth in Altering Phase Transformations during Continuous Cooling of a Low Alloy Cr-Mo-V Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2023:13. |
| APA | Jiang, Zhonghua,Wang, Pei,&Li, Dianzhong.(2023).Role of Solute Rare Earth in Altering Phase Transformations during Continuous Cooling of a Low Alloy Cr-Mo-V Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13. |
| MLA | Jiang, Zhonghua,et al."Role of Solute Rare Earth in Altering Phase Transformations during Continuous Cooling of a Low Alloy Cr-Mo-V Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2023):13. |
入库方式： OAI收割
来源：金属研究所
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