Twin boundaries in trained 10M Ni-Mn-Ga single crystals

被引：20
作者：
Chulist, R. [1 ]
Pagounis, E. [2 ]
Boehm, A. [3 ]
Oertel, C-G. [1 ]
Skrotzki, W. [1 ]
机构：
[1] Tech Univ Dresden, Inst Strukturphys, D-01062 Dresden, Germany
[2] ETO Magnet GmbH, D-78333 Stockach, Germany
[3] Fraunhofer Inst Werkzeugmaschinen & Umformtech, D-01187 Dresden, Germany
来源：
SCRIPTA MATERIALIA | 2012年 / 67卷 / 04期
关键词：
Ni-Mn-Ga; EBSD; Twinning; Modulation; 5M MODULATED MARTENSITE; MICROSTRUCTURE; STRAIN; ALLOY;
D O I：
10.1016/j.scriptamat.2012.05.026
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The arrangement of twin boundaries in trained 10M Ni-Mn-Ga single crystals was investigated by electron backscatter diffraction (EBSD) in a scanning electron microscope. Precise monoclinic structure data including direction of modulation were used to determine all possible boundaries. Besides type I, II and compound twins typical for monoclinic symmetry, a boundary between two directions of modulation was also detected. Compared to EBSD analysis done with simple tetragonal structure for 10M Ni-Mn-Ga alloys, a more complex microstructure with new boundaries is revealed. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：364 / 367
页数：4
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