Dual refinement effect of Rare Earth addition on solidification structure of TRIP steels
文献类型：期刊论文
| 作者 | Liu, Peng1,2; Ma, Hui1,2; Li, Zan1,2; Luan, Yikun1,2; Ma, Guangcai3; Li, Dianzhong1,2 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 252页码:6 |
| 关键词 | TRIP steels Rare earth elements Solidification structure Grain -refinement Composition homogeneity |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2024.116267 |
| 通讯作者 | Luan, Yikun(ykluan@imr.ac.cn) |
| 英文摘要 | A novel concept involving dual-refinement of solidification structure (referring to high-temperature ferrites delta- Fe and proeutectoid ferrites alpha-Fe) followed by dual-homogenization of solute atoms has been proposed accounting for the crystallization process of Nb/V-alloyed TRIP steels with Rare Earth (RE) addition. M(Nb,V)C carbides were predicted and observed easily precipitating on RE 2 O 2 S. Both RE 2 O 2 S and RE 2 O 2 S-MC can serve as heterogeneous nucleation sites for delta- Fe, and induce oriented epitaxy of alpha-Fe following certain orientation relationships. In above processes, RE segregation ahead of liquid-solid interfaces significantly hinders the movement of these interfaces thus promoting the intragranular dissolution of solute atoms. Furthermore, extensive precipitations of alpha-Fe from both austenite boundaries and grain interiors can also facilitate C/Mn homogenization. Such effects can be similarly reproduced in Nb/V-free TRIP steels. This study provides a strategy for microstructure tailoring of peritectic steels using RE-metamorphic products, and offers profound insights into alloy designing of RE-Nb(V) co-microalloying or replacing Nb(V) by RE. |
| 资助项目 | National Natural Science Foundation of China[52321001] ; National Science and Tech- nology Major Project[J2019 -VI -0019-0134] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001273186700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; National Science and Tech- nology Major Project ; Key Research Program of the Chinese Academy of Sciences |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Luan, Yikun |
| 作者单位 | 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, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Peng,Ma, Hui,Li, Zan,et al. Dual refinement effect of Rare Earth addition on solidification structure of TRIP steels[J]. SCRIPTA MATERIALIA,2024,252:6. |
| APA | Liu, Peng,Ma, Hui,Li, Zan,Luan, Yikun,Ma, Guangcai,&Li, Dianzhong.(2024).Dual refinement effect of Rare Earth addition on solidification structure of TRIP steels.SCRIPTA MATERIALIA,252,6. |
| MLA | Liu, Peng,et al."Dual refinement effect of Rare Earth addition on solidification structure of TRIP steels".SCRIPTA MATERIALIA 252(2024):6. |
入库方式： OAI收割
来源：金属研究所
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