Laser-Microplasma Reactive Powder Spraying of Titanium Coatings with Nitride Phases

Abstract

One of the actual problems of modern surface engineering is to improve the wear and corrosion resistance of structural elements made ​​of titanium and titanium alloys, which owing to a number of unique characteristics are becoming more widely used in industries such as aerospace, chemical engineering, medicine and many others. Promising way to improve the tribological characteristics as well as corrosion resistance in aggressive environments of such materials is the formation of titanium nitride layers on the surface. Titanium nitride is characterized by high hardness (up to 20000 MPa), wear resistance, chemical resistance and high refractory properties [1], which allows to significantly expand applicability and product lifetime of these materials.