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Shape Memory Effect in Microsize Sample of Ni–Mn–Ga–Cu Heusler Alloy
Physics of the Solid State ( IF 0.9 ) Pub Date : 2020-06-10 , DOI: 10.1134/s1063783420060153
A. V. Mashirov , A. V. Irzhak , A. V. Koshelev , N. V. Andreev , K. A. Kolesov , A. P. Kamantsev , V. V. Koledov , V. G. Shavrov

Abstract

The shape memory effect is demonstrated in a ferromagnetic microsample of the Ni50Mn18.5Ga25Cu6.5 Heusler alloy. The 23 × 1.28 × 4-μm microsample has been fabricated using the technology of a focused ion beam. The elastic deformation in the martensite phase is found to be higher than the shape memory effect based on the permanent strain due to twinning. The maximum value of the shape memory effect is 3.4%.


中文翻译:

Ni-Mn-Ga-Cu Heusler合金超细样品中的形状记忆效应

摘要

在Ni 50 Mn 18.5 Ga 25 Cu 6.5 Heusler合金的铁磁显微样品中证明了形状记忆效应。使用聚焦离子束技术制造了23×1.28×4-μm的微量样品。发现马氏体相中的弹性变形高于基于孪生引起的永久应变的形状记忆效应。形状记忆效果的最大值为3.4%。
更新日期:2020-06-10
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