Enhanced high-cycle fatigue resistance of 304 austenitic stainless steel with nanotwinned grains

doi:10.1016/j.ijfatigue.2020.105994

CORC > 金属研究所 > 中国科学院金属研究所

	Enhanced high-cycle fatigue resistance of 304 austenitic stainless steel with nanotwinned grains
	Cui, F.1,2; Pan, Q. S.1; Tao, N. R.1; Lu, L.1
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2021-02-01
卷号	143 页码:11
关键词	Nanotwin Austenitic stainless steel Fatigue property Cyclic deformation Strain localization
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2020.105994
通讯作者	Lu, L.(llu@imr.ac.cn)
英文摘要	Introducing high density of nanotwins (NT) into metals is regarded an effective strategy to achieve superior mechanical properties. Our study shows that heterogeneous structured 304 austenitic stainless steel comprising of NT and micrometer-sized grains with a lower strength exhibits a comparable fatigue strength and larger fatigue limit/strength ratio, compared to its counterpart comprising of grains with NT and dislocation structures, distinct from the traditional fatigue view. Such superior high-cycle fatigue resistance arises from a weakened strain-localized fatigue mechanism where some NT grains co-deform plastically with a large volume fraction of surrounding microsized grains with enhanced dislocation slipping and martensitic transformation.
资助项目	National Science Foundation of China (NSFC)[U1608257] ; National Science Foundation of China (NSFC)[51931010] ; Key Research Program of Frontier Science and International partnership program[GJHZ2029] ; CAS, and LiaoNing Revitalization Talents Program[XLYC1802026] ; SYNL Program ; NSFC[51601196 52071321] ; Youth Innovation Promotion Association CAS[2019196]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000597144800003
资助机构	National Science Foundation of China (NSFC) ; Key Research Program of Frontier Science and International partnership program ; CAS, and LiaoNing Revitalization Talents Program ; SYNL Program ; NSFC ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158674]
专题	金属研究所_中国科学院金属研究所
通讯作者	Lu, L.
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 230026, Peoples R China
推荐引用方式 GB/T 7714	Cui, F.,Pan, Q. S.,Tao, N. R.,et al. Enhanced high-cycle fatigue resistance of 304 austenitic stainless steel with nanotwinned grains[J]. INTERNATIONAL JOURNAL OF FATIGUE,2021,143:11.
APA	Cui, F.,Pan, Q. S.,Tao, N. R.,&Lu, L..(2021).Enhanced high-cycle fatigue resistance of 304 austenitic stainless steel with nanotwinned grains.INTERNATIONAL JOURNAL OF FATIGUE,143,11.
MLA	Cui, F.,et al."Enhanced high-cycle fatigue resistance of 304 austenitic stainless steel with nanotwinned grains".INTERNATIONAL JOURNAL OF FATIGUE 143(2021):11.