Reducing friction noise of M50 matrix composites by adding Ti3SiC2

Abstract

Friction noise is a common problem in the industrial field. It not only affects the accuracy and service life of system, but also damages the environmental comfort. In this paper, Ti3SiC2 is added to M50 matrix composites for reducing friction noise. The characteristics of friction noise signal, worn surface and cross-section morphology of wear scar are analyzed. The cause of friction noise is explored, and the influence of Ti3SiC2 on friction noise is revealed. The results show that the addition of Ti3SiC2 significantly improves the wear condition of contact surface, decreases the noise intensity level and suppresses the high frequency components. Especially when the Ti3SiC2 content is 10 wt%, the effect is more pronounced. The generation of friction noise is due to energy dissipation caused by surface roughness. Ti3SiC2 is conducive to forming a good friction interface layer on the worn surface, which reduces surface roughness and decreases friction noise.