Change in microstructure during training of a Ni50Mn29Ga21 bicrystal
Change in microstructure during training of a Ni50Mn29Ga21 bicrystal
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DOI：
10.1016/j.scriptamat.2010.05.028
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发表时间：
2010-09
影响因子：
6
通讯作者：
R. Chulist;W. Skrotzki;C. Oertel;A. Böhm;M. Pötschke
中科院分区：
文献类型：
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作者：
R. Chulist;W. Skrotzki;C. Oertel;A. Böhm;M. Pötschke
用电子背散射衍射扫描电镜研究了Ni 50 Mn 29 Ga 21双晶在训练过程中的显微组织变化。马氏体变体形成宏观孪晶和微观孪晶，这些孪晶彼此相关。这架双胞胎飞机是同一类型的。为了实现Ni-Mn-Ga合金中的磁场诱导应变，施加训练过程。该过程包括沿沿着两个轴连续压缩样品。结果，孪晶应力减小并且孪晶应变最大化。
The change in microstructure during training of a Ni50Mn29Ga21bicrystal was investigated by electron backscatter diffraction in a scanning electron microscope. The martensitic variants form macro and micro twins which are twin related with each other. The twin plane is of type. To achieve magnetic field induced strain in Ni–Mn–Ga alloys, a training process was applied. This process consists of successively compressing the sample along two axes. As a result the twinning stress is reduced and the twinning strain is maximized.