Recrystallization Controlling in a Cold-Rolled Medium Mn Steel and Its Effect on Mechanical Properties
文献类型：期刊论文
| 作者 | Hu Baojia1,2; Zheng Qinyuan1,2; Lu Yi1,2; Jia Chunni1; Liang Tian3; Zheng Chengwu1; Li Dianzhong1 |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2024-02-11 |
| 卷号 | 60期号:2页码:189-200 |
| 关键词 | cold-rolled medium Mn steel ferrite recrystallization retained austenite TRIP effect mechanical property |
| ISSN号 | 0412-1961 |
| DOI | 10.11900/0412.1961.2022.00350 |
| 通讯作者 | Zheng Chengwu(cwzheng@imr.ac.cn) ; Li Dianzhong(dzli@imr.ac.cn) |
| 英文摘要 | Owing to the excellent combination of specific strength and ductility, medium Mn steels (MMSs) with Mn contents of 3%-12% (mass fraction) are considered the most promising candidates for the third-generation advanced high-strength steel. The combination of excellent strength-ductility is mainly attributed to the active transformation-induced plasticity effect of the metastable retained austenite during deformation. Therefore, producing a considerable amount of retained austenite with reasonable stabilities in the steel by various heat treatment schedules is always important. In this study, granular- and lamellar-structured retained austenites were developed in a cold-rolled 0.15C-5Mn MMS by introducing a technical process of precontrolling ferrite recrystallization in the annealing schedule. The microstructures of the annealed samples were analyzed using SEM, EBSD, and TEM. The results show that duplex microstructures comprising various amounts of recrystallized ferrite and fresh martensite can be obtained in the cold-rolled MMS when controlling the occurrence of recrystallization at different intercritical temperatures by a preannealing process. When this microstructure is used for the final austenite reverted transformation annealing, the resultant ultrafine duplex microstructure with recrystallized ferrite and two types of heterogeneous retained austenite, i. e., lamellar and granular, is produced. The heterogeneous-structured austenite shows more sensitivity to increasing strain, i. e., various mechanical stabilities, which enable an excellent strength-ductility combination and reduced Luders strain in the cold-rolled medium Mn steel. |
| 资助项目 | National Natural Science Foundation of China[52071322] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001153599200006 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | 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 | Zheng Chengwu; Li Dianzhong |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, 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, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu Baojia,Zheng Qinyuan,Lu Yi,et al. Recrystallization Controlling in a Cold-Rolled Medium Mn Steel and Its Effect on Mechanical Properties[J]. ACTA METALLURGICA SINICA,2024,60(2):189-200. |
| APA | Hu Baojia.,Zheng Qinyuan.,Lu Yi.,Jia Chunni.,Liang Tian.,...&Li Dianzhong.(2024).Recrystallization Controlling in a Cold-Rolled Medium Mn Steel and Its Effect on Mechanical Properties.ACTA METALLURGICA SINICA,60(2),189-200. |
| MLA | Hu Baojia,et al."Recrystallization Controlling in a Cold-Rolled Medium Mn Steel and Its Effect on Mechanical Properties".ACTA METALLURGICA SINICA 60.2(2024):189-200. |
入库方式： OAI收割
来源：金属研究所
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