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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
ISSN1359-6462
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.
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