The effect of surface roughness parameters on frictional properties of AlSi10Mg alloy

Abstract

Experimental study of the effects of surface roughness parameters and their relationship to the coefficient of friction (COF) on AlSi10Mg alloy. The information demonstrates that the average surface roughness (Ra) directly correlates with COF during sliding. This study aims to study the effect of surface roughness characteristics on AlSi10Mg alloy and the relationship between the coefficient of friction (COF), the maximum lateral height (Rt), as well as the roughness parameters (Ra). The alloy samples are chemically treated in neutral mode for 0, 5, 10, 15, 25, and 50 minutes, and then evaluated under different conditions for changes in the effect of surface roughness. Surface roughness was measured, 3D surface measurements were performed, and the coefficient of friction was determined using a T-05 tri-mass caliper. As well as using MATLAB to analyze the data. When the results were verified experimentally, it was found that the average surface roughness (Ra) and coefficient of friction in sliding settings were correlated with each other, and the data indicated a strong positive relationship with (Rt). After a 50-minute testing process, a 20% increase in Ra resulted in a higher COF of 118.07%.