Sliding wear behavior and mechanism of Zr-based bulk metallic glasses and metallic glass matrix composites

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2025-04-04 DOI:10.1016/j.jnoncrysol.2025.123520

Jiaxiang Wu , Zhong Wang , Huijun Yang , Junwei Qiao

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引用次数: 0

Abstract

The cross-scale tribological mechanism of Zr-based bulk metallic glasses and its composites was studied. It is found that the wear rate of Zr-based bulk metallic glasses is lower than that of Zr-based metallic glass matrix composite, which is due to the high hardness characteristics of Zr-based bulk metallic glasses and the protection of the wear oxide layer, while the Zr-based metallic glass matrix composite is due to the toughening phase (55 % volume fraction). The hardness mismatch (ΔH = 2.56 GPa) of the matrix causes interfacial stress concentration and increases the wear rate. The wear mechanism of Zr-based metallic glass matrix composites gradually changes from plastic deformation to oxidation-fatigue composite mechanism with the increase of the load. Nano-scratch experiments show that the Zr-based bulk metallic glasses exhibits sawtooth friction fluctuation due to shear band activation, while the Zr-based metallic glass matrix composite produces friction oscillation due to the biphase heterogeneous structure. This study provides a theoretical framework for interface regulation and multiphase synergistic strengthening for the design of wear-resistant bulk metallic glasses.

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.