Resistance of surfaced layers and arc sprayed coatings with structure of metastable austenite against abrasive and adgesive wear

A comparative study of a structure and tribological properties of layers produced by Arc Spraying and Surfacing was done. A Fe-based alloy was used as a feedstock. Its distinctive feature is forming a meta-stable austenite type structure in a sprayed or surfaced layer. Applied external load dissipates here in transforming of austenite to hard martensite. Methods of structural and phase analysis, abrasion and adhesive wear tests were performed to evaluate layer’s properties. An explanation of differences in properties between sprayed or surfaced layers was proposed. It was based on the analysis of influence of input energy parameters of Arc Spraying and Surfacing.