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Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates
Wang YF; Yang MX(杨沐鑫); Ma XL; Wang MS; Yin K; Huang AH; Huang CX
2018-06-06
发表期刊MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷号727页码:113-118
ISSN0921-5093
摘要The effect of back stress on the mechanical behaviors of heterogeneous material is studied in two modeled heterogeneous laminates, i.e. laminated structure with a nanostructured (NS) Cu-Zn alloy layer sandwiched between two coarse-grained (CG) pure Cu layers. The improved tensile ductility of NS layer is revealed and attributed to the constraint from the stable CG layers. It is found that the elastic/plastic interaction between NS and CG layers is capable of significantly improving the back stress, which makes a significant contribution to the synergetic strain hardening in low strain stage. Furthermore, a higher mechanical incompatibility permits stronger and longer mutual interaction between layers, i.e. coupling effect, which contributes to a higher back stress. These results improve our understanding about the role of back stress on mechanical behaviors of heterogeneous laminate materials.
关键词Laminate Back stress Strain hardening Elastic/plastic interaction Nanostructure
DOI10.1016/j.msea.2018.04.107
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000438000500012
关键词[WOS]MECHANICAL-PROPERTIES ; GRADIENT STRUCTURE ; TENSILE PLASTICITY ; STAINLESS-STEEL ; HIGH-STRENGTH ; GRAIN-SIZE ; DUCTILITY ; DEFORMATION ; BEHAVIOR ; COPPER
WOS研究方向Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS类目Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
项目资助者National Natural Science Foundation of China [11672195, 51601204] ; Sichuan Youth Science and Technology Foundation [2016JQ0047]
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力学所作者排名2
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77824
专题非线性力学国家重点实验室
作者单位1.Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu 610065, Sichuan, Peoples R China
2.Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
3.North Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA
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Wang YF,Yang MX,Ma XL,et al. Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,727:113-118.
APA Wang YF.,杨沐鑫.,Ma XL.,Wang MS.,Yin K.,...&Huang CX.(2018).Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,727,113-118.
MLA Wang YF,et al."Improved back stress and synergetic strain hardening in coarse-grain/nanostructure laminates".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 727(2018):113-118.
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