Abstract The wear, elastic, mechanical and thermodynamic properties of bulk metallic glasses (BMGs) is studied to explore correlations between the wear resistance and properties of BMGs. It is found that the wear resistance of BMGs is dominated by synergistic effects of strength factors, namely the hardness (H), Young's modulus (E), yield strength (σy) and glass transition temperature (Tg), as well as toughness factors, like the notch toughness (KQ) and Poisson's ratio (ν). Moreover, a novel strategy for optimizing the wear resistance of BMGs is proposed from elastic perspective. The wear resistance of BMGs is correlated with chemistry-induced changes to bulk modulus (B) and Poisson's ratio (ν) for the first time. Developing BMGs with high value of B 0.5 · [ 2 ( 1 + v ) / 3 ( 1 − 2 v ) ] 0.25 can achieve simultaneously both high strength and good toughness, which provides the elastic opportunities for designing ultra-wear-resistant BMGs.

中文翻译：

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块状金属玻璃耐磨性与性能的相关性

摘要 研究了块状金属玻璃 (BMGs) 的磨损、弹性、机械和热力学性能，以探索 BMGs 的耐磨性和性能之间的相关性。结果表明，BMGs 的耐磨性主要受强度因素的协同作用，即硬度 (H)、杨氏模量 (E)、屈服强度 (σy) 和玻璃化转变温度 (Tg) 以及韧性因素的协同作用，如缺口韧性 (KQ) 和泊松比 (ν)。此外，从弹性的角度提出了一种优化 BMG 耐磨性的新策略。BMG 的耐磨性首次与化学诱导的体积模量 (B) 和泊松比 (ν) 变化相关。开发具有高 B 0.5 · [ 2 ( 1 + v ) / 3 ( 1 − 2 v ) ] 0 值的 BMG。