High-temperature Tensile Behavior in Coarse-grained and Fine-grained Nb-containing 25Cr-20Ni Austenitic Stainless Steel
文献类型：期刊论文
| 作者 | Hu, Guodong1,2,3,4; Wang, Pei1; Li, Dianzhong1; Li, Yiyi1 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2020-06-23 |
| 页码 | 11 |
| 关键词 | Austenitic stainless steels High-temperature tensile properties Grain size Precipitates |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-020-01076-2 |
| 通讯作者 | Wang, Pei(pwang@imr.ac.cn) |
| 英文摘要 | In this study, tensile behavior of Nb-containing 25Cr-20Ni austenitic stainless steels composed of coarse or fine grains has been investigated at temperatures ranging from room temperature to 900 degrees C. Results show that the tensile strength of fine-grained specimens decreases faster than that of coarse-grained specimens, as the test temperature increases from 600 degrees C to 800 degrees C. The rapidly decreasing tensile strength is attributed to the enhanced dynamic recovery and recrystallization, because additional slip systems are activated, and cross-slipping is accelerated during deformation in fine-grained specimens. After tensile testing at 700-900 degrees C, sigma phases are formed concurrently with dynamic recrystallization in fine-grained specimens. The precipitation of sigma phases is induced by simultaneous recrystallization as the diffusion of alloying elements is accelerated during the recrystallization process. Additionally, the minimum ductility is observed in coarse-grained specimens at 800 degrees C, which is caused by the formation ofM(23)C(6)precipitates at the grain boundaries. |
| 资助项目 | Youth Innovation Promotion Association, Chinese Academy of Sciences[2013126] ; LiaoNing Revitalization Talents Program[XLYC1807022] ; Guangdong Innovative and Entrepreneurial Research Team Program[2016ZT06G025] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110886] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000542515900003 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | Youth Innovation Promotion Association, Chinese Academy of Sciences ; LiaoNing Revitalization Talents Program ; Guangdong Innovative and Entrepreneurial Research Team Program ; Guangdong Basic and Applied Basic Research Foundation |
| 源URL | [http://ir.imr.ac.cn/handle/321006/139503]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Pei |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Ctr Excellence Adv Mat, Dongguan 523808, Peoples R China 4.Songshan Lake Lab Mat Sci, Dongguan 523808, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Guodong,Wang, Pei,Li, Dianzhong,et al. High-temperature Tensile Behavior in Coarse-grained and Fine-grained Nb-containing 25Cr-20Ni Austenitic Stainless Steel[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2020:11. |
| APA | Hu, Guodong,Wang, Pei,Li, Dianzhong,&Li, Yiyi.(2020).High-temperature Tensile Behavior in Coarse-grained and Fine-grained Nb-containing 25Cr-20Ni Austenitic Stainless Steel.ACTA METALLURGICA SINICA-ENGLISH LETTERS,11. |
| MLA | Hu, Guodong,et al."High-temperature Tensile Behavior in Coarse-grained and Fine-grained Nb-containing 25Cr-20Ni Austenitic Stainless Steel".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2020):11. |
入库方式： OAI收割
来源：金属研究所
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