{112} < 1 11 > Twinning during omega to body-centered cubic transition

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	{112} < 1 11 > Twinning during omega to body-centered cubic transition
	S. Q. Wu; D. H. Ping; Y. Yamabe-Mitarai; W. L. Xiao; Y. Yang; Q. M. Hu; G. P. Li; R. Yang
	2014
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	62 页码:122-128
摘要	We propose an omega-lattice mechanism that is irrelevant to dislocation behaviors for a popular twinning ({112}< 1 1 1 >-type) system in body-centered-cubic (bcc) metals and alloys. The twinning process is dependent on the reverse transformation of omega (hexagonal) -> bcc. The driving force of the twinning is attributed to the instability of a high density of nanoscale metastable omega precursors, and the mechanism has been experimentally and theoretically confirmed in bcc-Ti alloys with the {1 1 2}< 1 1 1 >-type twin formed under conditions free of external stress and internal strain. The omega-lattice mechanism involves bcc lattice shuffling only, thus can be applied to all bcc metals and alloys. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[wu, s. q. ; ping, d. h. ; yamabe-mitarai, y. ; xiao, w. l.] natl inst mat sci, tsukuba, ibaraki 3050047, japan. [wu, s. q. ; li, g. p. ; yang, r.] chinese acad sci, inst met res, shenyang 110016, peoples r china. [yang, y.] cent res inst, baosteel grp cooperat, shanghai 201900, peoples r china. [yang, y.] baosteel special steel co ltd, shanghai 200940, peoples r china. [hu, q. m. ; yang, r.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; ping, dh (reprint author), natl inst mat sci, sengen 1-2-1, tsukuba, ibaraki 3050047, japan. ; ping.de-hai@nims.go.jp ; ryang@imr.ac.cn
关键词	Twin Metals And Alloys Titanium Alloy Microstructure First-principles Calculation Multilayer Stacking-faults Potential Model Bcc Metals Alloy Deformation Transformation Approximation Martensite Phase Twins
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/72318
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	S. Q. Wu,D. H. Ping,Y. Yamabe-Mitarai,et al. {112} < 1 11 > Twinning during omega to body-centered cubic transition[J]. Acta Materialia,2014,62:122-128.
APA	S. Q. Wu.,D. H. Ping.,Y. Yamabe-Mitarai.,W. L. Xiao.,Y. Yang.,...&R. Yang.(2014).{112} < 1 11 > Twinning during omega to body-centered cubic transition.Acta Materialia,62,122-128.
MLA	S. Q. Wu,et al."{112} < 1 11 > Twinning during omega to body-centered cubic transition".Acta Materialia 62(2014):122-128.