Physics of the Solid State ( IF 0.9 ) Pub Date : 2022-04-26 , DOI: 10.1134/s1063783422010115 D. D. Kuznetsov 1 , A. V. Mashirov 1 , V. G. Shavrov 1 , V. V. Koledov 1 , E. I. Kuznetsova 2 , A. S. Loshachenko 3 , D. V. Danilov 3 , G. A. Shandryuk 4
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Abstract
This paper presents a study of the metamagnetostructural transition of the martensitic type in the Ni46Mn41In13 alloy with magnetic shape memory and inverse magnetocaloric effect. Differential scanning calorimetry was used to determine the characteristic temperatures of the direct transformation (start at Ms = 253 K, finish at Mf = 164 K) and the reverse transformation (As = 203 K and Af = 236 K, respectively). The characteristic features of the transformation, that is, a decrease in the temperature of the onset of the direct transformation and the presence of a residual austenite phase, and premartensite states, were studied using transmission electron microscopy. The estimated thickness of the material at which the martensitic transformation is suppressed is 50 nm.
中文翻译：
非化学计量 Ni46Mn41In13 Heusler 合金相变的原位 TEM 研究
摘要
本文介绍了具有磁形状记忆和逆磁热效应的 Ni46Mn41In13 合金中马氏体型的超磁结构转变的研究。差示扫描量热法用于确定直接转变（开始于M s = 253 K，结束于M f = 164 K）和反向转变（A s = 203 K 和A f= 236 K，分别）。使用透射电子显微镜研究了转变的特征，即直接转变开始温度的降低和残余奥氏体相的存在以及前马氏体状态。抑制马氏体转变的材料的估计厚度为 50 nm。
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