Martensitic transformation within nanotwins enhances fatigue damage resistance of a nanotwinned austenitic stainless steel

doi:10.1016/j.scriptamat.2021.114313

IMR OpenIR

	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
通讯作者	Tao, N. R.(nrtao@imr.ac.cn)
	2022-01-15
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	207 页码:6
摘要	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.
关键词	Nanotwins Fatigue Austenitic steel, Martensitic transformation
资助者	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
收录类别	SCI
语种	英语
资助项目	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研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000707608000008
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/166567
专题	中国科学院金属研究所
通讯作者	Tao, N. R.
作者单位	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
推荐引用方式 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.