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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 | |
| Source Publication | SCRIPTA MATERIALIA
 |
| ISSN | 1359-6462 |
| Volume | 127Pages:173-177 |
| Abstract | 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. |
| description.department | [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 |
| Keyword | Nanotwinned Stainless Steel Fracture Toughness Shear Deformation Void Nucleation |
| Subject Area | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Organization | National Basic Research Program of China (973 Program) [2012CB932202]; National Science Foundation of China [51420105001, 51171181, 51371171, 51471172, 51401211] |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/78341 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Lu, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China. |
| Recommended Citation 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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