Yu. P. Chernenkov, O. P. Smirnov, V. A. Lukshina, A. V. Timofeeva, M. V. Petrik, A. R. Kuznetsov, N. V. Ershov, Yu. N. Gornostyrev, D. A. Shishkin
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引用次数: 0
摘要
摘要 通过 X 射线衍射研究了经过热磁处理（TMT）的软磁性 Fe-9% Ga 合金（A2 相区）单晶样品的原子结构。在热磁处理过程中，处于铁磁状态的样品在 450°C 下退火，然后在外部饱和磁场中缓慢冷却至室温。在经过 TMT 和零磁场热处理（HT）的合金中发现了 B2 簇，它们是以 Ga 原子为中心的成对 bcc 单元。研究表明，TMT 和 HT 对所研究合金中 B2 团簇的大小和体积分数几乎没有影响。本文讨论了 B2 簇的形成和稳定机制，以及它们在形成铁-镓合金中的诱导磁各向异性中的作用。
Short-Range Order and Its Stability in a Soft-Magnetic Iron–Gallium Alloy
Abstract—The atomic structure of single-crystal samples of soft-magnetic Fe–9 at % Ga alloys (the A2-phase region) subjected to thermomagnetic treatment (TMT) is studied by X-ray diffraction. In the course of TMT, the samples in the ferromagnetic state are annealed at 450°C and slowly cooled to room temperature in an external saturating magnetic field. In the alloys subjected to TMT and in the alloys subjected to heat treatment (HT) in zero magnetic field, B2 clusters are found, which are pairs of bcc cells centered with Ga atoms. The TMT and HT are shown to have virtually no effect on the size and volume fraction of B2 clusters in the alloy under study. The formation and stability mechanisms of B2 clusters and their role in the formation of induced magnetic anisotropy in the Fe–Ga alloys are discussed.
期刊介绍：
The Physics of Metals and Metallography (Fizika metallov i metallovedenie) was founded in 1955 by the USSR Academy of Sciences. Its scientific profile involves the theory of metals and metal alloys, their electrical and magnetic properties, as well as their structure, phase transformations, and principal mechanical properties. The journal also publishes scientific reviews and papers written by experts involved in fundamental, application, and technological studies. The annual volume of publications amounts to some 250 papers submitted from 100 leading national scientific institutions.
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