Deformation behavior of brittle/ductile multilayered composites under interface constraint effect
Wu, H; Fan, GH; Huang, M; Geng, L; Cui, XP; Xie, HL
2017
发表期刊INTERNATIONAL JOURNAL OF PLASTICITY
ISSN0749-6419
卷号89期号:-页码:96-109
文章类型期刊论文
摘要A brittle/ductile multilayered composite was designed and fabricated by reaction annealing of pure Ti and Al foils, and comprised alternating ct-Ti(AI) layer, alpha-alpha(2) dual-phase layer, and alpha(2)-Ti3Al layer. Brittle alpha(2)-Ti3Al phase is expected to impart high yield strength to the composite, while the ductile alpha-Ti(Al) phase provides the desired tensile ductility. The role of alpha+alpha(2) dual-phase layer is to weaken the deformation incompatibility between alpha-Ti(Al) and alpha(2)-Ti3Al layers. As expected, tensile tests show a good strength-ductility combination. The real-time tracking of local strain evolution process during the tensile deformation provides a new perspective in understanding the relationship between the microstructure and mechanical properties, by which we found the strength-ductility synergy originates from the constrained crack propagation behavior and strain non localization imparted by multilayered structure. During the tensile deformation, the local Ti3Al cracking firstly occurred, and the size of plastic zone at the crack tip was theoretically predicted and experimentally validated. Additionally, a model was proposed to describe the stress/strain transfer path before and after cracking. (C) 2016 Elsevier Ltd. All rights reserved.
关键词Gradient Structure Bending Behaviors Matrix Composites Layered Materials Basal Slip Strain Tensile Ductile Fracture Strength
DOI10.1016/j.ijplas.2016.11.005
关键词[WOS]GRADIENT STRUCTURE ; BENDING BEHAVIORS ; MATRIX COMPOSITES ; LAYERED MATERIALS ; BASAL SLIP ; STRAIN ; TENSILE ; DUCTILE ; FRACTURE ; STRENGTH
收录类别SCI
语种英语
WOS记录号WOS:000395851200005
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/28598
专题中科院上海应用物理研究所2011-2018年
推荐引用方式
GB/T 7714
Wu, H,Fan, GH,Huang, M,et al. Deformation behavior of brittle/ductile multilayered composites under interface constraint effect[J]. INTERNATIONAL JOURNAL OF PLASTICITY,2017,89(-):96-109.
APA Wu, H,Fan, GH,Huang, M,Geng, L,Cui, XP,&Xie, HL.(2017).Deformation behavior of brittle/ductile multilayered composites under interface constraint effect.INTERNATIONAL JOURNAL OF PLASTICITY,89(-),96-109.
MLA Wu, H,et al."Deformation behavior of brittle/ductile multilayered composites under interface constraint effect".INTERNATIONAL JOURNAL OF PLASTICITY 89.-(2017):96-109.
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