Formation of zigzag-shaped {112}< 111 > beta mechanical twins in Ti-24.5 Nb-0.7 Ta-2 Zr-1.4 O alloy

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	Formation of zigzag-shaped {112}< 111 > beta mechanical twins in Ti-24.5 Nb-0.7 Ta-2 Zr-1.4 O alloy
	Y. Yang; G. P. Li; H. Wang; S. Q. Wu; L. C. Zhang; Y. L. Li; K. Yang
	2012
发表期刊	Scripta Materialia
ISSN	1359-6462
卷号	66 期号:5 页码:211-214
摘要	Zigzag-shaped {112}< 111 > mechanical twins are formed in a cold-compressed Ti-24.5 Nb-0.7 Ta-2 Zr-1.4 O beta alloy. The formation process involves a 1/2 < 111 > screw dislocation dissociation, movement of three partials on adjacent {112} planes to form microtwins, constriction of blocked extended dislocation to form a new screw dislocation, as well as cross-slip of such dislocation onto another {112} plane in repetitive sequences. Obstacles to extended dislocation and appropriate stacking fault energy of the 13 phase should be the key factors for the formation of such twins. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[yang, y.; li, g. p.; wang, h.; wu, s. q.; li, y. l.; yang, k.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [yang, y.] nw inst nonferrous met res, xian 710016, peoples r china. [wu, s. q.] chinese acad sci, grad sch, beijing 100039, peoples r china. [wu, s. q.] natl inst mat sci, tsukuba, ibaraki 3050047, japan. [zhang, l. c.] univ western australia, sch mech & chem engn, perth, wa 6009, australia.;yang, y (reprint author), chinese acad sci, inst met res, shenyang 110016, peoples r china.;yiyang.imr@163.com; gpli@imr.ac.cn
关键词	Titanium Alloy Plastic Deformation Zigzag-shaped Mechanical Twinning Dislocation Behavior Gum Metal Deformation Tantalum Fcc
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60401
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Yang,G. P. Li,H. Wang,et al. Formation of zigzag-shaped {112}< 111 > beta mechanical twins in Ti-24.5 Nb-0.7 Ta-2 Zr-1.4 O alloy[J]. Scripta Materialia,2012,66(5):211-214.
APA	Y. Yang.,G. P. Li.,H. Wang.,S. Q. Wu.,L. C. Zhang.,...&K. Yang.(2012).Formation of zigzag-shaped {112}< 111 > beta mechanical twins in Ti-24.5 Nb-0.7 Ta-2 Zr-1.4 O alloy.Scripta Materialia,66(5),211-214.
MLA	Y. Yang,et al."Formation of zigzag-shaped {112}< 111 > beta mechanical twins in Ti-24.5 Nb-0.7 Ta-2 Zr-1.4 O alloy".Scripta Materialia 66.5(2012):211-214.