Deformation behavior of a Ti66Cu8Ni4.8Sn7.2Nb14 nanostructured composite containing ductile dendrites

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	Deformation behavior of a Ti66Cu8Ni4.8Sn7.2Nb14 nanostructured composite containing ductile dendrites
	J. Eckert; J. Das; K. B. Kim; F. Baier; W. Loser; M. Calin; Z. F. Zhang; A. Gebert
	2007
发表期刊	Journal of Alloys and Compounds
ISSN	0925-8388
卷号	434 页码:13-17
摘要	The deformation behavior of multicomponent Ti66Cu8Ni4.8Sn7.2Nb14 composite containing primary dendrites embedded in a nanoeutectic matrix was studied under uniaxial compression. The evolution of slip and shear bands has been investigated at various stages of deformation. This type of advanced composite not only displays a high compressive plasticity of 31.8%, but also exhibits high fracture strength of approximate to 2.02 GPa (true fracture strength 1.38 GPa). Pronounced work hardening was observed after yielding. The surface deformation morphology reveals that the work hardening behavior of the composite is related to the plastic deformation of the dendritic phase through slip bands and the interaction of shear bands in the nanostructured matrix with the hardened dendrites. The nucleation of shear band occurs at a certain amount (8%) of plastic deformation at the dendrite-nanoeutectic matrix interface. The final stage of compression proceeds through passing of the shear bands through the work-hardened dendrites into the nanoeutectic matrix, whereby the propagation of the shear bands in the matrix is retarded by the nanoscale phases. (C) 2006 Elsevier B.V. All rights reserved.
部门归属	ifw dresden, inst festkorperanalyt & strukturforsch, d-01171 dresden, germany. tech univ darmstadt, phys met div, dept mat & geo sci, d-64287 darmstadt, germany. leibniz inst solid state & mat res dresden, d-01171 dresden, germany. sejong univ, dept adv mat engn, seoul 143747, south korea. univ politech bucharest, mat sci & engn fac, r-060032 bucharest, romania. chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china.;eckert, j (reprint author), ifw dresden, inst festkorperanalyt & strukturforsch, postfach 27 01 16, d-01171 dresden, germany;j.eckert@ifw-dresden.de
关键词	Nanostructured Composite Microstructure Mechanical Properties Deformation Mechanism Shear Bands Bulk Metallic-glass Mechanical-properties Enhanced Plasticity Matrix Composite
URL	查看原文
WOS记录号	WOS:000246286900005
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33516
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Eckert,J. Das,K. B. Kim,et al. Deformation behavior of a Ti66Cu8Ni4.8Sn7.2Nb14 nanostructured composite containing ductile dendrites[J]. Journal of Alloys and Compounds,2007,434:13-17.
APA	J. Eckert.,J. Das.,K. B. Kim.,F. Baier.,W. Loser.,...&A. Gebert.(2007).Deformation behavior of a Ti66Cu8Ni4.8Sn7.2Nb14 nanostructured composite containing ductile dendrites.Journal of Alloys and Compounds,434,13-17.
MLA	J. Eckert,et al."Deformation behavior of a Ti66Cu8Ni4.8Sn7.2Nb14 nanostructured composite containing ductile dendrites".Journal of Alloys and Compounds 434(2007):13-17.