Microstructure Evolution and Tensile Properties of Medium Manganese Steel Heat Treated by Two-Step Annealing
文献类型：期刊论文
| 作者 | Kang, Tao1,2,3; Zhan, Zhanyu1; Wang, Changcheng1; Zhao, Zhengzhi2,3; Liang, Juhua4; Yao, Lele1 |
| 刊名 | METALS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 14 |
| 关键词 | medium manganese steel element partition microstructure mechanical properties two-step annealing |
| DOI | 10.3390/met14091008 |
| 通讯作者 | Kang, Tao(13220101686@163.com) ; Liang, Juhua(liangjuhua0721@126.com) |
| 英文摘要 | In this paper, the nucleation and growth of austenite are controlled through a two-step annealing process to achieve multi-scale distribution and content increase of retained austenite in low manganese series medium-Mn steel. Combining SEM, EBSD, AES, and other experimental equipment, the evolution rules of the microstructure, properties, and element distribution behavior of the test steel during the annealing process are studied. Compared with one-step annealing, the two-step annealing significantly broadens the size distribution range of retained austenite. In the first step, after annealing at a higher intercritical temperature (760 degrees C), the ferrite and the M/A island are obtained, completing the initial partition of Mn and the refinement of microstructures. During the second step of annealing (720 degrees C), the primary Mn-rich martensite region provides higher nucleation driving force and finer dispersed nucleation sites, promoting the nucleation and growth of reverse transformation austenite. At the same time, the metastable-retained austenite formed after the first step of annealing continues to grow through interface movement. Furthermore, a high proportion (23.4%) of retained austenite with multi-scale distribution is formed in the final microstructure, and the product of strength and elongation increased from 21.8 GPa |
| WOS关键词 | MECHANICAL-PROPERTIES ; RETAINED AUSTENITE ; HIGH-STRENGTH ; TRANSFORMATION |
| 资助项目 | Key research and development plan of Shandong Province[2019TSLH0103] ; National Natural Science Foundation of China[52001304] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001323100000001 |
| 出版者 | MDPI |
| 资助机构 | Key research and development plan of Shandong Province ; National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135571]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Kang, Tao; Liang, Juhua |
| 作者单位 | 1.China North Vehicle Res Inst, Beijing 100072, Peoples R China 2.Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China 3.Beijing Lab Met Mat & Proc Modern Transportat, Beijing 100083, Peoples R China 4.Chinese Acad Sci, Key Lab Mat Phys, Inst Solid State Phys, HFIPS, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, Tao,Zhan, Zhanyu,Wang, Changcheng,et al. Microstructure Evolution and Tensile Properties of Medium Manganese Steel Heat Treated by Two-Step Annealing[J]. METALS,2024,14. |
| APA | Kang, Tao,Zhan, Zhanyu,Wang, Changcheng,Zhao, Zhengzhi,Liang, Juhua,&Yao, Lele.(2024).Microstructure Evolution and Tensile Properties of Medium Manganese Steel Heat Treated by Two-Step Annealing.METALS,14. |
| MLA | Kang, Tao,et al."Microstructure Evolution and Tensile Properties of Medium Manganese Steel Heat Treated by Two-Step Annealing".METALS 14(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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