Effects of Additive Compounds on Tribological Properties of High Velocity Arc Sprayed Iron Aluminum Coatings

Iron aluminum cored wires used to achieve iron aluminum coatings by adding powders,combined with high velocity arc spraying(HVAS) technology.Wear experiments were performed at a THT07-135 high temperature experiment machine.Wear scar image and composite analyses were done with SEM.Coatings with addition of reinforcements had better mechanical properties;Coatings that added Cr3C2 compounds owe excellent room temperature wear resistance properties,Coatings with addition of elements Cr and Ni increased their wear resistance properties a little;High temperature tribological properties of coatings with addition of WC and Cr3C2 increased with the rising of temperature under high temperature conditions.