具有高度异质微观结构的锆基大块金属玻璃的摩擦学行为

The Tribological Behaviors in Zr-Based Bulk Metallic Glass with High Heterogeneous Microstructure.

作者信息

Ma Yubai, Li Mei, Zu Fangqiu

机构信息

College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401133, China.

Liquid/Solid Metal Processing Institute, School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China.

出版信息

Materials (Basel). 2022 Nov 4;15(21):7772. doi: 10.3390/ma15217772.

DOI:10.3390/ma15217772

PMID:36363364

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9659052/

Abstract

Microstructural inhomogeneity of bulk metallic glasses (BMGs) plays a significant role in their mechanical properties. However, there is hardly ant research concerning the influence of heterogeneous microstructures on tribological behaviors. Hence, in this research, the tribological behaviors of different microstructural-heterogeneity BMGs sliding in-air were systematically investigated, and the corresponding wear mechanisms were disclosed via analyzing the chemical composition and morphology of the wear track. Higher microstructural-heterogeneity BMGs can possess a better wear resistance both under dry sliding and a 3.5% NaCl solution. The results suggest that microstructural heterogeneity enhancement is a valid strategy to improve the tribological performance of BMGs.

摘要

块体金属玻璃（BMGs）的微观结构不均匀性对其力学性能起着重要作用。然而，关于异质微观结构对摩擦学行为影响的研究几乎没有。因此，在本研究中，系统地研究了不同微观结构不均匀性的BMGs在空气中滑动时的摩擦学行为，并通过分析磨损轨迹的化学成分和形态揭示了相应的磨损机制。微观结构不均匀性较高的BMGs在干滑动和3.5% NaCl溶液中都具有更好的耐磨性。结果表明，增强微观结构不均匀性是提高BMGs摩擦学性能的有效策略。