高熵非晶态合金充分结晶形成含硼的多组分纳米颗粒FCC固溶体

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Scripta Materialia Pub Date : 2025-04-30 DOI:10.1016/j.scriptamat.2025.116725

A. Bazlov , E. Ubyivovk , N. Tabachkova , E. Zanaeva , M. Parkhomenko , A. Rodin , T. Sviridova , A. Inoue

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引用次数: 0

摘要

本文研究了非晶态（Fe0.25Co0.25Ni0.25Cr0.125V0.125）83B17合金充分结晶后，形成含大量硼(B)与少量纳米级BCC相共存的多组分纳米颗粒FCC过饱和固溶体。亚稳FCC相在1073 K温度下保持不变。残余的非晶相不寻常地形成FCC单相可能是由于具有强键合原子对和适当的原子尺寸差异的组成元素之间的远程再分布受到抑制，这可以看作是高熵效应。随着温度进一步升高，固溶体分解为FCC + Me3B2。值得注意的是，在铸态和快速凝固状态下，残余非晶相首先形成的只有饱和B的FCC固溶体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Multicomponent nanogranular FCC solid solution saturated with boron formed by full crystallization of high-entropy amorphous alloy

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Multicomponent nanogranular FCC solid solution saturated with boron formed by full crystallization of high-entropy amorphous alloy

The paper presents the formation of multicomponent nanogranular FCC supersaturated solid solution containing a large amount of boron (B) in coexistent with small amount of nanoscale BCC phase after full crystallization of an amorphous (Fe_0.25Co_0.25Ni_0.25Cr_0.125V_0.125)₈₃B₁₇ alloy. The metastable FCC phase remains unchanged at temperatures up to 1073 K. The unusual formation of an FCC single phase from the residual amorphous phase is presumably due to the suppression of long-range redistribution among the constituent elements with strong bonding atomic pairs and suitable atomic size differences, which can be regarded as a high entropy effect. With further increasing temperature, the solid solution decomposes to FCC + Me₃B₂. It is notable that the formation of only an FCC solid solution saturated with B from the residual amorphous phase is the first in as-cast and rapid solidification states.

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来源期刊

Scripta Materialia 工程技术-材料科学：综合

CiteScore

11.40

自引率

5.00%

发文量

581

审稿时长

34 days

期刊介绍： Scripta Materialia is a LETTERS journal of Acta Materialia, providing a forum for the rapid publication of short communications on the relationship between the structure and the properties of inorganic materials. The emphasis is on originality rather than incremental research. Short reports on the development of materials with novel or substantially improved properties are also welcomed. Emphasis is on either the functional or mechanical behavior of metals, ceramics and semiconductors at all length scales.