| Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment | |
| Cai, Xin1,2; Hu, Xiaoqiang2; Zheng, Leigang2; Li, Dianzhong2 | |
| Corresponding Author | Hu, Xiaoqiang(xqhu@imr.ac.cn) |
| 2021-06-15 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Pages | 5 |
| Abstract | The redistribution of C and N atoms during cryogenic treatment is crucial for the microstructure evolution and properties of high nitrogen martensitic steel. Here, the distinct redistribution behavior of C and N atoms in a martensitic stainless steel with 0.3 wt% C and 0.5 wt% N after cryogenic treatment were investigated by the atom probe tomography. Carbon clusters begin to form after cryogenic treatment at - 60 degrees C and gradually increase with the decrease of cryogenic treatment temperature. While Mo-N and Cr-N pairs are homogeneously distributed in the matrix even after cryogenic treatment at -120 degrees C, and then form enrichment phenomenon when the cryogenic temperature is deeply lowered to - 190 degrees C. It is found that the distinct redistributions of C and N atoms are associated with the different interaction energy between substitutional atoms and them. The stronger interaction between Cr, Mo atoms and N delays the segregation of N during the cryogenic treatment. Finally, the mechanical properties results confirmed that the deep lower cryogenic treatment is a promising method to improve the hardness and strength in the high nitrogen martensitic stainless steel. |
| Keyword | Interstitial atom Cryogenic treatment Martensitic stainless steel Atom probe tomography |
| Funding Organization | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Scientific and Technological Projects of Jiangxi Province |
| DOI | 10.1007/s40195-021-01265-7 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51871212] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC04000000] ; Major Scientific and Technological Projects of Jiangxi Province[20194ABC28011] ; Major Scientific and Technological Projects of Jiangxi Province[TC190A4DA/35] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000661766000001 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/160458 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Hu, Xiaoqiang |
| Affiliation | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Cai, Xin,Hu, Xiaoqiang,Zheng, Leigang,et al. Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:5. |
| APA | Cai, Xin,Hu, Xiaoqiang,Zheng, Leigang,&Li, Dianzhong.(2021).Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment.ACTA METALLURGICA SINICA-ENGLISH LETTERS,5. |
| MLA | Cai, Xin,et al."Redistribution of C and N Atoms in High Nitrogen Martensitic Stainless Steel During Cryogenic Treatment".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):5. |
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