轻质高熵合金的研究进展

doi:10.13251/j.issn.0254-6051.2022.04.016

摘要/Abstract

摘要： 高熵合金是由多种元素以等摩尔或近等摩尔的比例混合形成的一种新型合金,较大的密度极大地限制了其应用。为了降低高熵合金的密度,出现了由Al、Li、Mg、Ti等轻质合金元素组成的轻质高熵合金,其在交通运输、航空航天领域潜在的应用前景引起了广泛关注。本文阐述了轻质高熵合金的研究现状,分析了轻质高熵合金的组元设计方法、相组成以及制备工艺,进而归纳总结了目前不同种类的轻质高熵合金的性能,包括高强度、高硬度、高温抗氧化性、耐蚀性能等。最后总结了轻质高熵合金目前存在的一些问题以及对轻质高熵合金未来的研究方向进行了展望。

关键词: 轻质高熵合金, 力学性能, 相组成, 组元设计

Abstract: High-entropy alloys is a new emerging class of metallic alloys which are constituted by multiple elements with an equi-molar or near equi-molar mixing. But its larger density greatly limits its application. In order to reduce the density of high-entropy alloys, light-weight high-entropy alloys composed of light alloy elements such as Al, Li, Mg, Ti, etc. appeared. Because of its potential application prospects in transportation and aerospace fields, it has attracted widespread attention. The current research status of lightweight high-entropy alloys is described, and the component design methods, phase formation and preparation processes of lightweight high-entropy alloys are analyzed, and then the various properties of different types of lightweight high-entropy alloys are summarized, including high strength, high hardness, high temperature oxidation resistance, corrosion resistance, etc. Finally, some existing problems of light-weight high-entropy alloys are summarized and the future research directions of light-weight high-entropy alloys are prospected.

Key words: light-weight high-entropy alloys, mechanical properties, phase composition, component design

中图分类号:

TG139

骆再斌, 范子泽, 彭振. 轻质高熵合金的研究进展[J]. 金属热处理, 2022, 47(4): 100-107.

Luo Zaibin, Fan Zize, Peng Zhen. Research progress of light-weight high-entropy alloys[J]. Heat Treatment of Metals, 2022, 47(4): 100-107.

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