Fracture behavior of an austenitic stainless steel with nanoscale deformation twins

IMR OpenIR

	Fracture behavior of an austenitic stainless steel with nanoscale deformation twins
	Xiong, L.; You, Z. S.; Lu, L.; Lu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
	2017-01-15
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	127 页码:173-177
摘要	A bulk nanotwinned austenitic stainless steel containing a large volume fraction of deformation twins was produced by dynamic plastic deformation. The tensile tests and J-integral fracture toughness measurements indicate that this steel exhibits a combination of high strength (sigma(ys) = 920 MPa) and considerable fracture toughness (K-JC > 126 MPa m(1/2)). The fracture is associated with localized shear band induced destruction of the nanotwinned structure and with micro-void development at the generated nanoscale large angle grain boundaries within the shear bands, which consumes large plastic energy and contributes the fracture resistance. (C) 2016 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.; A bulk nanotwinned austenitic stainless steel containing a large volume fraction of deformation twins was produced by dynamic plastic deformation. The tensile tests and J-integral fracture toughness measurements indicate that this steel exhibits a combination of high strength (sigma(ys) = 920 MPa) and considerable fracture toughness (K-JC > 126 MPa m(1/2)). The fracture is associated with localized shear band induced destruction of the nanotwinned structure and with micro-void development at the generated nanoscale large angle grain boundaries within the shear bands, which consumes large plastic energy and contributes the fracture resistance. (C) 2016 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
部门归属	[xiong, l. ; you, z. s. ; lu, l.] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china ; [you, z. s.] nanjing univ sci & technol, herbert gleiter inst nanosci, 200 xiaolingwei st, nanjing 210094, jiangsu, peoples r china
关键词	Nanotwinned Stainless Steel Fracture Toughness Shear Deformation Void Nucleation
学科领域	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
资助者	National Basic Research Program of China (973 Program) [2012CB932202]; National Science Foundation of China [51420105001, 51171181, 51371171, 51471172, 51401211]
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/78341
专题	中国科学院金属研究所
通讯作者	Lu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.
推荐引用方式 GB/T 7714	Xiong, L.,You, Z. S.,Lu, L.,et al. Fracture behavior of an austenitic stainless steel with nanoscale deformation twins[J]. SCRIPTA MATERIALIA,2017,127:173-177.
APA	Xiong, L.,You, Z. S.,Lu, L.,&Lu, L .(2017).Fracture behavior of an austenitic stainless steel with nanoscale deformation twins.SCRIPTA MATERIALIA,127,173-177.
MLA	Xiong, L.,et al."Fracture behavior of an austenitic stainless steel with nanoscale deformation twins".SCRIPTA MATERIALIA 127(2017):173-177.