The effects of normal load on the dry-sliding, micro-scratch and nanoindentation behaviors of the Zr-based bulk glassy alloys
Source abstract
Abstract
In this work, the macro-sliding, micro-scratch and nanoindentation behaviors of the Zr 55Cu 30Al 10Ni 5 bulk glassy alloy (BGA) were investigated. It was found that the frictional coefficient and wear rate of the BGA in the dry-sliding test increase with the increasing normal load, and the wear mechanism includes abrasive and oxidative wear. The micro-scratch test results show that the plastic deformation of the alloy and the density of shear bands at the edge of scratch scar increase with the increase in normal load. The friction mechanism between the indenter and the BGA shifts from stick-slip friction to ploughing friction and to micro-cutting as the applied normal load elevates. The nanoindentation result reveals that increasing the normal load leads to the plastic deformation accumulation, and the decreasing elastic modulus and hardness, which are related to the increase in the free volume and shear bands during the deformation process.
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Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · High Entropy Alloys Studies · Cultural and Historical Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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