Microstructure and Wear Properties of Fe-Based Alloy Coating

Fe-based alloy coatings were produced by the plasma transferred arc(PTA) at arc current values of 90A,100A,110A and 120A. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and optical microscopy (OM) were used to characterize the microstructure of the coatings. The wear resistances of the coatings were tested by impact and wear experiment. The results show that, the coating and substrate are metallurgy combination, and the coating modified at 110A shows that better wear resistance than others.