A Review on Microstructure and Mechanical Properties of L-PBF 17-4PH and 15-5PH SS

Additive manufacturing made a revolution in the Manufacturing area by producing parts with less lead time and highest complexity. It creates parts in layer by layer manner using engineering design. Metallic components in all fields can be produced by Additive manufacturing because of its near net shape production and high quality production. Many Steels can be processed using Additive manufacturing methods. 17-4PH and 15-5 PH Stainless Steels are the precipitated hardened steels which exhibits better mechanical properties after Heat treatment. Even though so many Additive manufacturing Processes are there, Selective Laser Melting gives fully dense and quality parts. In this review paper, we have given an over view on the Microstructure, mechanical, corrosion properties and fatigue properties of 17-4 PH SS and 15-5 PH SS produced by SLM and comparison with conventional parts.