Fracture behavior of heterogeneous nanostructured 316L austenitic stainless steel with nanotwin bundles

doi:10.1016/j.actamat.2018.02.065

IMR OpenIR

	Fracture behavior of heterogeneous nanostructured 316L austenitic stainless steel with nanotwin bundles
	Xiong, L.1; You, Z. S.2; Qu, S. D.2; Lu, L.1
通讯作者	Lu, L.(llu@imr.ac.cn)
	2018-05-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	150 页码:130-138
摘要	The fracture behavior was investigated of a bulk nanostructured 316L austenitic stainless steel with embedded nanotwin bundles incorporated by dynamic plastic deformation. The nanotwin bundles were demonstrated to be critical to strengthen and toughen the as-deformed samples with mixed microstructures of nano-grains and nano-twins. With increment in strength, the fracture toughness decreases due to the generation of increasingly more nano-grains. Additional controlled thermal annealing that makes the nano-grains recover or recrystallize leads to reduced strengths but more remarkably improved fracture toughness. The enhanced strength fracture toughness synergy can be attributed to the nano twin bundles that constrict the damage development in the matrix of either nano-grains or recrystallized grains, and that resist crack propagation via acting as ductile crack bridging ligaments. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	Austenitic stainless steel Nanotwins Fracture toughness Crack bridging Strength-toughness synergy
资助者	Key Research Program of Frontier Sciences, CAS, National Science Foundation of China ; Fundamental Research Funds for the Central Universities, China ; Natural Science Foundation of Jiangsu Province, China
DOI	10.1016/j.actamat.2018.02.065
收录类别	SCI
语种	英语
资助项目	Key Research Program of Frontier Sciences, CAS, National Science Foundation of China[51420105001] ; Key Research Program of Frontier Sciences, CAS, National Science Foundation of China[51371171] ; Key Research Program of Frontier Sciences, CAS, National Science Foundation of China[51471172] ; Key Research Program of Frontier Sciences, CAS, National Science Foundation of China[51401211] ; Key Research Program of Frontier Sciences, CAS, National Science Foundation of China[U1608257] ; Fundamental Research Funds for the Central Universities, China[30915012104] ; Natural Science Foundation of Jiangsu Province, China[BK20161498]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000433272400012
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：80[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/321006/128347
专题	中国科学院金属研究所
通讯作者	Lu, L.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, 200 Xiaolingwei St, Nanjing 210094, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Xiong, L.,You, Z. S.,Qu, S. D.,et al. Fracture behavior of heterogeneous nanostructured 316L austenitic stainless steel with nanotwin bundles[J]. ACTA MATERIALIA,2018,150:130-138.
APA	Xiong, L.,You, Z. S.,Qu, S. D.,&Lu, L..(2018).Fracture behavior of heterogeneous nanostructured 316L austenitic stainless steel with nanotwin bundles.ACTA MATERIALIA,150,130-138.
MLA	Xiong, L.,et al."Fracture behavior of heterogeneous nanostructured 316L austenitic stainless steel with nanotwin bundles".ACTA MATERIALIA 150(2018):130-138.