期刊论文详细信息
SCRIPTA MATERIALIA 卷:62
Direction of modulation during twin boundary motion
Article
Chulist, R.1  Oertel, C. -G.1  Skrotzki, W.1  Lippmann, T.2 
[1] Tech Univ Dresden, Inst Strukturphys, D-01062 Dresden, Germany
[2] GKSS Forschungszentrum Geesthacht, Inst Werkstoffforsch, D-21502 Geesthacht, Germany
关键词: Synchrotron radiation;    Diffraction;    Martensitic phase transformation;    Twinning;    Modulation;   
DOI  :  10.1016/j.scriptamat.2009.11.004
来源: Elsevier
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【 摘 要 】

To study the change of modulation direction during deformation, two NiMnGa single crystals, one with a five-layered modulated tetragonal structure (5 M) and the other with a seven-layered modulated orthorhombic structure (7 M), were chosen. Synchrotron diffraction experiments show that the modulation takes place on the {1 1 0) plane along the < 1 1 0] directions. During deformation the c-axis orientation changes by twinning, and with this the direction of modulation obeying the twin relation also changes. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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