Effect of Addition Some Element Laser Surface Treatment on Wear Rate of Al-16%Si

Abstract

In this work laser surface treatment has used in hardening alloy which are (Al-16%Si) after melting it and addition element which are (Mg,Cu,Ni) with highpurity with suitable quantities by using pulsed Nd-Glass laser with pulsed duration(6Hz.) with overlapped-pulses.laser surface melting method done for the alloy,andwearing test performed with different loads before and after laser treatment ,theresults show that wear rete and hardness increases after laser treatment.Keywords: high purity, Nd-Glass laser, laser surface melting, wear, hardness.