Abstract
This aim of this research is to investigate the impact of laser power on the hardness
and the wear resistance properties of laser metal deposited 17-4 PH stainless steel.
Hardness was studied using Zwick/Roell microhardness tester and the wear
resistance property was carried out using ball-on-disc Anton Paar-tribometer wear
tester. The study revealed that an irregular increase and decrease in the average
hardness value and wear behaviour were observed. This could be attributed to the
presence of copper precipitate which was more concentrate at the overlapping region
because of the reheating activity that is happening between the succeeding and
preceding track layers.