Experimental Investigations on the Effects of Multicomponent Laser Boriding on steels

Abstract

In this investigation, the effects of the multicomponent (Ni+Cr+B4C) laser boriding on the microstructure, microhardness, ductility and toughness of AISI 1020 steel are studied. Thick, hard, non-acicular and uniform boride layer are obtained as a result of laser boriding. The impact test results indicate that the laser borided specimens treated at higher energy densities of the laser beam have better ductility and toughness as compared with the specimens treated with lower energy densities of the laser beam as well as the continuous and the interrupted borided specimens.