Phase States and Structural Phase Transitions in Fe73Ga27RE0.5 (RE = Dy, Er, Tb, Yb) Alloys: A Neutron Diffraction Study

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Physics of Metals and Metallography Pub Date : 2024-07-17 DOI:10.1134/s0031918x24600131

A. M. Balagurov, B. Yerzhanov, B. Mukhametuly, N. Yu. Samoylova, V. V. Palacheva, S. V. Sumnikov, I. S. Golovin

{"title":"Phase States and Structural Phase Transitions in Fe73Ga27RE0.5 (RE = Dy, Er, Tb, Yb) Alloys: A Neutron Diffraction Study","authors":"A. M. Balagurov, B. Yerzhanov, B. Mukhametuly, N. Yu. Samoylova, V. V. Palacheva, S. V. Sumnikov, I. S. Golovin","doi":"10.1134/s0031918x24600131","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">\nAbstract—</h3>New data on phase states and structural phase transitions in alloys Fe73Ga27 doped with Dy, Er, Tb, and Yb in an amount of about 0.5 at % are presented. Structural data were obtained in neutron diffraction experiments performed with high resolution and in continuous temperature scanning mode during heating to 850°C and subsequent cooling at a rate of ±2°C/min. It has been established that both the sequence of forming and disappearing structural phases and the final state of the alloy depend on the type of rare earth element. Phase transitions in the alloy with Dy are similar to those in the initial Fe73Ga27 alloy, excluding the final state. The procedure of doping with Er and Tb leads to the formation of disordered A1 and A3 phases instead of the L12 and D019 ordered close packed phases, respectively. In the case of doping with Yb, neither of the above phases is observed. The formation of the L60 (m-D03) and D022 tetragonal structural phases previously discovered in similar alloys by the electron diffraction method is not confirmed.","PeriodicalId":20180,"journal":{"name":"Physics of Metals and Metallography","volume":"10 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2024-07-17","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/s0031918x24600131","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—

New data on phase states and structural phase transitions in alloys Fe₇₃Ga₂₇ doped with Dy, Er, Tb, and Yb in an amount of about 0.5 at % are presented. Structural data were obtained in neutron diffraction experiments performed with high resolution and in continuous temperature scanning mode during heating to 850°C and subsequent cooling at a rate of ±2°C/min. It has been established that both the sequence of forming and disappearing structural phases and the final state of the alloy depend on the type of rare earth element. Phase transitions in the alloy with Dy are similar to those in the initial Fe₇₃Ga₂₇ alloy, excluding the final state. The procedure of doping with Er and Tb leads to the formation of disordered A1 and A3 phases instead of the L1₂ and D0₁₉ ordered close packed phases, respectively. In the case of doping with Yb, neither of the above phases is observed. The formation of the L6₀ (m-D0₃) and D0₂₂ tetragonal structural phases previously discovered in similar alloys by the electron diffraction method is not confirmed.

Abstract Image

查看原文本刊更多论文

Fe73Ga27RE0.5（RE = Dy、Er、Tb、Yb）合金中的相态和结构相变：中子衍射研究

摘要-本文提供了关于掺杂了 Dy、Er、Tb 和 Yb（含量约为 0.5%）的 Fe73Ga27 合金的相态和结构相变的新数据。结构数据是在中子衍射实验中以高分辨率和连续温度扫描模式获得的，实验过程是加热到 850°C，然后以 ±2°C/min 的速度冷却。实验证明，结构相的形成和消失顺序以及合金的最终状态都取决于稀土元素的种类。除最终状态外，含 Dy 的合金中的相变与初始 Fe73Ga27 合金中的相变相似。掺杂 Er 和 Tb 的过程会导致形成无序的 A1 和 A3 相，而不是 L12 和 D019 有序的紧密堆积相。在掺入镱的情况下，上述两种相都没有出现。之前通过电子衍射方法在类似合金中发现的 L60（m-D03）和 D022 四方结构相的形成未得到证实。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Physics of Metals and Metallography 工程技术-冶金工程

CiteScore

2.00

自引率

25.00%

发文量

108

审稿时长

3 months

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.