Influence of Ultrasonic Nanocrystal Surface Modification Treatment Temperature on Microstructure and Tribological Behavior of Bearing Steel

摘要

In this study, a bearing steel AISI 52100 was subjected to ultrasonic nanocrystalline surface modification (UNSM) technique at ambient and high temperature of 500 °C. The objective of this study is to investigate the effectiveness of UNSM technique on the friction and wear behavior at ambient and high temperatures. The hardness with respect to depth from the top surface was measured using a microhardness. The findings from this preliminary study are expected to be implemented to the bearings and tools to increase the efficiency and performance of the components.