Influence of vanadium doping and rapid quenching on phase stability and magnetic properties of τ-MnAl alloys

IF 3 3区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Magnetism and Magnetic Materials Pub Date : 2026-03-01 Epub Date: 2026-01-18 DOI:10.1016/j.jmmm.2026.173851

A.S. Fortuna , K.S. Nechaev , N.M. Vazhinskii , M.V. Gorshenkov , D.Yu. Karpenkov

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Abstract

This paper focuses on the determination of the influence of V on the stability, magnetic properties, and features of phase transitions in Mn_55-xA_42+xV₃ alloys (x = 0, 2, and 4), both in the cast and rapidly quenched states. It has been shown that vanadium decreases the stability of the ferromagnetic τ-phase. The feasibility of directly producing the τ-phase through rapid quenching has been confirmed by achieving a high proportion of the τ-phase, approximately 90 vol%, in the Mn₅₃Al₄₄V₃ as-quenched alloy. Additionally, the Curie temperature of this alloy has been determined to exhibit hysteresis during heating and subsequent cooling. Based on these findings, it was suggested that Mn₅₃Al₄₄V₃ undergoes a first-order magnetic phase transformation. Based on the experimental data, a Mn-Al-V phase diagram for alloys with a vanadium concentration of 3% and a manganese concentration of 51–55% has been proposed, and a diagram of the dependence of the phase composition in rapidly quenched ribbons on the composition of Mn_55-xA_42+xV₃ has been constructed.

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钒掺杂和快速淬火对τ-MnAl合金相稳定性和磁性能的影响

本文重点研究了V对Mn55-xA42+xV3合金（x = 0、2和4）铸态和快速淬火态稳定性、磁性能和相变特征的影响。结果表明，钒降低了铁磁τ相的稳定性。通过在Mn53Al44V3淬火合金中获得较高的τ相比例（约90 vol%），证实了通过快速淬火直接产生τ相的可行性。此外，该合金的居里温度在加热和随后的冷却过程中表现出滞后。结果表明，Mn53Al44V3发生了一级磁相变。根据实验数据，提出了钒浓度为3%、锰浓度为51 ~ 55%合金的Mn-Al-V相图，并构建了快速淬火带中相组成与Mn55-xA42+xV3组成的关系图。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Magnetism and Magnetic Materials 物理-材料科学：综合

CiteScore

5.30

自引率

11.10%

发文量

1149

审稿时长

59 days

期刊介绍： The Journal of Magnetism and Magnetic Materials provides an important forum for the disclosure and discussion of original contributions covering the whole spectrum of topics, from basic magnetism to the technology and applications of magnetic materials. The journal encourages greater interaction between the basic and applied sub-disciplines of magnetism with comprehensive review articles, in addition to full-length contributions. In addition, other categories of contributions are welcome, including Critical Focused issues, Current Perspectives and Outreach to the General Public. Main Categories: Full-length articles: Technically original research documents that report results of value to the communities that comprise the journal audience. The link between chemical, structural and microstructural properties on the one hand and magnetic properties on the other hand are encouraged. In addition to general topics covering all areas of magnetism and magnetic materials, the full-length articles also include three sub-sections, focusing on Nanomagnetism, Spintronics and Applications. The sub-section on Nanomagnetism contains articles on magnetic nanoparticles, nanowires, thin films, 2D materials and other nanoscale magnetic materials and their applications. The sub-section on Spintronics contains articles on magnetoresistance, magnetoimpedance, magneto-optical phenomena, Micro-Electro-Mechanical Systems (MEMS), and other topics related to spin current control and magneto-transport phenomena. The sub-section on Applications display papers that focus on applications of magnetic materials. The applications need to show a connection to magnetism. Review articles: Review articles organize, clarify, and summarize existing major works in the areas covered by the Journal and provide comprehensive citations to the full spectrum of relevant literature.