Strain partition induced abnormal low-cycle fatigue behavior in single-phase heterostructured 316L stainless steels

doi:10.1016/j.scriptamat.2022.115274

IMR OpenIR

	Strain partition induced abnormal low-cycle fatigue behavior in single-phase heterostructured 316L stainless steels
	Han, P. C.1,2; Li, Q.1; Tao, N. R.1
通讯作者	Li, Q.(qli13s@imr.ac.cn) ; Tao, N. R.(nrtao@imr.ac.cn)
	2023-04-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	227 页码:6
摘要	The low-cycle fatigue (LCF) life of conventional materials is largely dependent on their ductility, i.e., the better the ductility, the longer the LCF life. In this work, 316L stainless steel (SS) was subjected to dynamic plastic deformation , subsequent annealing to obtain single-phase heterostructured samples consisting of recrystal-lized grains and remaining nanostructures. The tensile ductility of the heterostructured 316L SS increases monotonically with increasing volume fraction of recrystallized grains, while the strain-controlled LCF life first decreases and then increases, partially deviating from the monotonically increasing LCF-ductility relation. The reason is that the recrystallized grains with a low volume fraction (<= 25 vol.%) in heterostructured 316L SS sustain high cumulative plastic strain due to plastic strain partitioning, leading to cracking in the recrystallized grains at the early stages of LCF and thus reducing the LCF life.
关键词	Heterostructure 316L stainless steel Low-cycle fatigue life Ductility Cumulative plastic strain
资助者	National Natural Science Foundation of China
DOI	10.1016/j.scriptamat.2022.115274
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[91963110] ; National Natural Science Foundation of China[52101162]
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:000918936600001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：1[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/321006/175279
专题	中国科学院金属研究所
通讯作者	Li, Q.; 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, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Han, P. C.,Li, Q.,Tao, N. R.. Strain partition induced abnormal low-cycle fatigue behavior in single-phase heterostructured 316L stainless steels[J]. SCRIPTA MATERIALIA,2023,227:6.
APA	Han, P. C.,Li, Q.,&Tao, N. R..(2023).Strain partition induced abnormal low-cycle fatigue behavior in single-phase heterostructured 316L stainless steels.SCRIPTA MATERIALIA,227,6.
MLA	Han, P. C.,et al."Strain partition induced abnormal low-cycle fatigue behavior in single-phase heterostructured 316L stainless steels".SCRIPTA MATERIALIA 227(2023):6.