Abstract
Laser metal deposition (LMD) is an additive
manufacturing process. Unlike conventional manufacturing
process which is subtractive, LMD produces part layer by
layer from the ground up and has been used to fabricate fully
dense components using a variety of metallic powders. This
paper investigates the evolving properties of laser deposited 17-
4PH stainless steel. The microstructure was martensitic with a
dendritic structure. The average microhardness of the samples
was found to be less than their wrought counterpart.