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
{"title":"Short-Range Order and Its Stability in a Soft-Magnetic Iron–Gallium Alloy","authors":"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","doi":"10.1134/s0031918x23602536","DOIUrl":null,"url":null,"abstract":"<p><b>Abstract</b>—The atomic structure of single-crystal samples of soft-magnetic Fe–9 at % Ga alloys (the <i>A</i>2-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, <i>B</i>2 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 <i>B</i>2 clusters in the alloy under study. The formation and stability mechanisms of <i>B</i>2 clusters and their role in the formation of induced magnetic anisotropy in the Fe–Ga alloys are discussed.</p>","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"7 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Metals and Metallography","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1134/s0031918x23602536","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
引用次数: 0
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.