Abstract

The way in which martensitic transformation in iron alloys in high pulsed magnetic field can proceed via two different routes is explained. The first route corresponds to the Clausius–Clapeyron equation and can be considered “typical structural phase transition”. The second route is governed by the redistribution of the exchange-interaction forces between electrons in the fcc-lattice phase under the action of external factors which increase the interatomic distance (magnetostriction of paraprocess). Such a transformation route can be regarded as “the first-order magnetic phase transition”. In magnetic field, in some alloys the “structural phase transition” changes to “the first-order magnetic phase transition”. The hypothesis that the martensitic transformation in some steels and iron alloys can be regarded as “the first-order magnetic phase transition” even in the absence of a magnetic field (expansion of the lattice by spontaneous magnetostriction, carbon doping, etc.) is expressed.

中文翻译：

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高磁场下添加铬，锰和碳的Fe-Ni合金的马氏体相变

摘要

解释了在高脉冲磁场中铁合金中马氏体转变可以通过两种不同途径进行的方式。第一条路线对应于Clausius-Clapeyron方程，可以被认为是“典型的结构相变”。第二种途径是在外在因素的作用下，fcc-晶格相中的电子之间的交换相互作用力的重新分布决定的，这些因素增加了原子间的距离（副过程的磁致伸缩）。这样的变换路径可以被认为是“一阶磁性相变”。在磁场中，在某些合金中，“结构相变”变为“一阶磁性相变”。