Experimental Study on Argon Arc Depositing Wear-resisting Cladding
The main chemical composition of argon arc depositing wear-resisting cladding were designed by orthogonal method and the cladding samples were made using argon arc heat source.The wear tests of cladding specimens were carried on the sand slurry wear test machine.The results show that C and Cr are significant effect factors on wear resistance of the cladding,but Mo and RE silicon are not.The optimal scheme of wear resistance is 3.0%C,27%Cr,1.5%Mo and 1.0%RESi.The wear resistance of the optimal scheme is 6.37 times of 45 steel guide sample.The wear surface morphologies show that the wear mechanism of the 45 steel sample is micro-cutting and repeating plastic deformation desquamation and that the wear mechanism of the argon arc depositing wear-resisting cladding sample is micro-cutting of the base structure and desquamation of the high hardness carbide particles under the sand slurry wear condition.