Abstract

The results of investigation of functional characteristics of the Mn₂NiGa Heusler alloy prepared by argon-arc melting are presented. Its electric resistance, magnetization, magnetocaloric and shape memory effects were studied using direct experimental techniques in a wide temperature range 100–400 K. The inverse magnetocaloric effect, which does not reach saturation in pulsed magnetic fields up to 50 T, was observed in both martensite and austenite phases. The value of reversible deformation in the alloy was as high as 0.35% under bending mechanical loads up to 247 MPa.

中文翻译：

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Mn 2 NiGa Heusler合金中的磁热和形状记忆效应

摘要

给出了通过氩弧熔化制备的Mn ₂ NiGa Heusler合金的功能特性的研究结果。使用直接实验技术在100-400 K的宽温度范围内研究了其电阻，磁化，磁热和形状记忆效应。在高达50 T的脉冲磁场中，都未观察到逆磁热效应马氏体和奥氏体相。在高达247 MPa的弯曲机械载荷下，合金的可逆变形值高达0.35％。