| Martensitic transformation within nanotwins enhances fatigue damage resistance of a nanotwinned austenitic stainless steel | |
| Li, Q.1; Liu, D. Y.1,2; Yan, F. K.1; Tao, N. R.1 | |
| Corresponding Author | Tao, N. R.(nrtao@imr.ac.cn) |
| 2022-01-15 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 207Pages:6 |
| Abstract | We investigated the low-cycle fatigue behavior of a novel nanotwinned 316L stainless steel consisting of nanotwinned austenitic grains embedded in the matrix with characteristic dislocation arrangements. We excitingly found that the alpha\prime-martensitic transformation is activated traversing twin lamellae to undertake the localized deformation of nanotwinned grains at high strain amplitudes. These alpha\prime-Ymartensite nuclei are mainly originated from the intersections between "zigzag" slip bands and twin lamellae. Thanks to the effective release of stress/strain localization by the alpha\prime-martensitic transformation within nanotwins, the fatigue strength and fatigue life in the low-cycle regime are simultaneously enhanced. (C) 2021 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |
| Keyword | Nanotwins Fatigue Austenitic steel, Martensitic transformation |
| Funding Organization | National Natural Science Foundation ; National Key R&D Program of China ; Shenyang National Laboratory for Materials Science, IMR, CAS |
| DOI | 10.1016/j.scriptamat.2021.114313 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation[51771196] ; National Natural Science Foundation[91963110] ; National Natural Science Foundation[52101162] ; National Key R&D Program of China[2017YFA0204401] ; National Key R&D Program of China[2017YFA0204402] ; Shenyang National Laboratory for Materials Science, IMR, CAS[Y9SL3036L] |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000707608000008 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/166567 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Tao, N. R. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Wenhua Rd 72, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Q.,Liu, D. Y.,Yan, F. K.,et al. Martensitic transformation within nanotwins enhances fatigue damage resistance of a nanotwinned austenitic stainless steel[J]. SCRIPTA MATERIALIA,2022,207:6. |
| APA | Li, Q.,Liu, D. Y.,Yan, F. K.,&Tao, N. R..(2022).Martensitic transformation within nanotwins enhances fatigue damage resistance of a nanotwinned austenitic stainless steel.SCRIPTA MATERIALIA,207,6. |
| MLA | Li, Q.,et al."Martensitic transformation within nanotwins enhances fatigue damage resistance of a nanotwinned austenitic stainless steel".SCRIPTA MATERIALIA 207(2022):6. |
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