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Extraordinary Bauschinger effect in gradient structured copper
Liu XL(刘小龙); Yuan FP(袁福平); Zhu YT; Wu XL(武晓雷)
发表期刊SCRIPTA MATERIALIA
2018-06-01
卷号150页码:57-60
ISSN1359-6462
摘要Bauschinger effect is a well-known phenomenon, in which the tensile stress is higher than the reverse compressive stress. Here we report that the gradient structured copper exhibits an extraordinarily large Bauschinger effect. We propose to use the reverse yield softening, Delta sigma(b), as a quantitative parameter to represent the Bauschinger effect. Delta sigma(b) evolves in the same trend as the back stress with pre-strain, and can be used to evaluate the effectiveness of a heterostructure in producing back stress for superior mechanical properties. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词Bauschinger Effect Geometrically Necessary Dislocations Gradient Structure Reverse Yield Softening Tensile-compressive Test
DOI10.1016/j.scriptamat.2018.03.007
收录类别SCI ; EI
语种英语
WOS记录号WOS:000432612500013
关键词[WOS]STAINLESS-STEEL ; ALUMINUM-ALLOY ; AISI 316L ; STRAIN ; METALS ; DEFORMATION ; PLASTICITY ; MECHANISM ; EVOLUTION ; STRESS
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者National Key RAMP ; National Natural Science Foundation of China(11572328 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB22040503) ; US Army Research Office(W911NF-17-1-0350) ; D Program of China(2017YFA0204402) ; 11472286 ; 11672313 ; 11790293)
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文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77491
专题非线性力学国家重点实验室
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GB/T 7714
Liu XL,Yuan FP,Zhu YT,et al. Extraordinary Bauschinger effect in gradient structured copper[J]. SCRIPTA MATERIALIA,2018,150:57-60.
APA 刘小龙,袁福平,Zhu YT,&武晓雷.(2018).Extraordinary Bauschinger effect in gradient structured copper.SCRIPTA MATERIALIA,150,57-60.
MLA 刘小龙,et al."Extraordinary Bauschinger effect in gradient structured copper".SCRIPTA MATERIALIA 150(2018):57-60.
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