Study on Microstructure and Properties of TC4 Titanium Alloy Blade Formed by Spot Forging Laser Rapid Prototyping

In order to improve the performance of laser rapid prototyping TC4 titanium alloy blades, the TC4 titanium alloy blade test prepared by spot forging laser rapid prototyping.The microstructure, wear resistance and corrosion resistance of specimens were explored,and compared with those of conventional laser rapid prototyping samples.The results show that compared with those of the conventional laser rapid forming, the room temperature wear volume of the point forging laser rapid forming blade is reduced by 43.9%, the positive shift amplitude of corrosion potential in 5wt%sodium chloride aqueous solution reaches 10.9%.The spot forging laser rapid prototyping can refine the blade grains, avoid hole defects, and improve the wear resistance and corrosion resistance of the blade.