117301 Surface Modification for Laser Sintered Titanium Alloy by Fine Particle Peening

Abstract

Titanium alloys formed by a Selective Laser Sintering (SLS) method include many defects. In order to improve the fatigue and corrosion properties of the SLS samples, Fine Particle Peening (FPP) was introduced. When treated with high speed steel particles, almost all defects disappeared within 30 seconds of treatment. However, no noticeable effect was observed on fatigue strength and corrosion resistance of the specimen.