MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Atomic Group Rotation Mechanism for {10\bar{1}2} Twinning of HCP Crystal Materials
Shan Jiang
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2014 Volume 55 Issue 6 Pages 907-910

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Abstract

In this paper the atomic motion law of the {10\bar{1}2} twinning in hexagonal close-packed (HCP) crystal materials was studied through the atomic group rotation (AGR) model. The research results show that the AGR mechanism has universal property to all the HCP crystal materials. Though the structure of the atomic group changes with the axial ratio, the atomic motion of {10\bar{1}2} twinning in all the HCP crystal materials can be ascribed to the rotational motion of the atomic groups. The relation between the rotational angle, the relative displacement magnitude and the axial ratio was obtained. With the growth of axial ratio, the rotational angle increases, but the relative displacement magnitude decreases.

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© 2014 The Japan Institute of Metals and Materials
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