Concurrently achieving strength-ductility combination and robust anti-wear performance in an in-situ high-entropy bulk metallic glass composite

Yin Du, Dongpeng Hua, Qing Zhou, Xuhui Pei, Hanmin Wang, Yue Ren, Haifeng Wang, Weimin Liu

科研成果: 期刊稿件文章同行评审

37 引用 (Scopus)

摘要

High-entropy bulk metallic glasses (HE-BMGs) with desired thermal stability often exhibit limited plasticity due to the occurrence of shear localization avalanches. The present study reports the fabrication of a novel composite TiZrHfNb0.5Cu0.5Be0.5, consisting of a high entropy crystalline phase (TiZrHfNb) and an amorphous matrix (TiZrHfCuBe). The composite exhibits a distinctive combination of strength and ductility, surpassing that of traditional BMG composites, along with a notable capacity for work-hardening. Furthermore, it demonstrates exceptional wear resistance under varying normal loads or frequencies. The deformation and wear mechanisms are attributed to the solid-solution strengthening and stress-induced β→α" martensitic transformation in the high entropy crystalline phase, as well as the deformation-induced crystallization in HE-BMG matrix. These findings would provide a new strategy for preparing advanced HE-BMGs composite with unique properties.

源语言英语
文章编号111222
期刊Composites Part B: Engineering
272
DOI
出版状态已出版 - 1 3月 2024

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