TiN- and (Ti, Zr) N-coated EI961 steel turbine blades were tested in a specially designed electrically heated test unit for gaseous abrasive-corrosive wear. The relative decrease in the wear resistance of the coatings with an increase in temperature is inversely proportional to the concurrent squared relative decrease in the internal macrostress of the coatings. (Ti, Zr) N coating proves to be more efficient for corrosion and erosion protection.