Deformation behavior of brittle/ductile multilayered composites under interface constraint effect

doi:10.1016/j.ijplas.2016.11.005

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	Deformation behavior of brittle/ductile multilayered composites under interface constraint effect
	Wu, H; Fan, GH; Huang, M; Geng, L; Cui, XP; Xie, HL
刊名	INTERNATIONAL JOURNAL OF PLASTICITY
	2017
卷号	89 期号:-页码:96-109
关键词	Gradient Structure Bending Behaviors Matrix Composites Layered Materials Basal Slip Strain Tensile Ductile Fracture Strength
ISSN号	0749-6419
DOI	10.1016/j.ijplas.2016.11.005
文献子类	期刊论文
英文摘要	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.
WOS关键词	GRADIENT STRUCTURE ; BENDING BEHAVIORS ; MATRIX COMPOSITES ; LAYERED MATERIALS ; BASAL SLIP ; STRAIN ; TENSILE ; DUCTILE ; FRACTURE ; STRENGTH
语种	英语
WOS记录号	WOS:000395851200005
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28598]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017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.