Lattice correspondence during twinning in hexagonal close-packed crystals

被引：146
作者：
Niewczas, M. [1 ]
机构：
[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4M1, Canada
来源：
ACTA MATERIALIA | 2010年 / 58卷 / 17期
关键词：
Hexagonal close-packed metals; Twinning; Lattice correspondence; Slip systems; Lattice transformation; STACKING-FAULT TETRAHEDRA; PLASTIC DEFORMATION; DISLOCATIONS; SLIP; INTERSECTION; TITANIUM; SHOCKLEY; INDEXES; TWINS; ZR;
D O I：
10.1016/j.actamat.2010.06.059
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The correspondence of the dominant slip modes in parent and twin structures in hexagonal closed-packed crystals is considered within the framework of the theory of deformation twinning. The correspondence matrices, which provide a link between the parent and twin lattices, have been worked out for compound twinning modes and selected metals. Geometrical considerations suggest that in most cases deformation twins should inherit a harder dislocation substructure than that of the corresponding parent. Possible mechanisms of twin hardening are discussed. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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页码：5848 / 5857
页数：10
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