Effect of Heat Treatment of Bronze Powder CuAl₁₀Fe₃Mn₂ on the Microhardness of its Particles

Abstract

The purpose of this work is to test the possibility of reducing the microhardness of particles of bronze powder CuAl10Fe3Mn2 by heat treatment. It is assumed that in the future, when obtaining coatings by cold gas-dynamic spraying, the use of less hard bronze particles will lead to more favorable conditions for the formation of coatings with improved characteristics. The conducted experimental studies allow us to conclude that the selected modes of heat treatment of this powder can noticeably reduce the microhardness of its particles (approximately by factor of 1.5). It should also be noted that heat treatment in a vacuum and in an argon medium leads to close values of the microhardness of the particles.