PLASTIC DEFORMATION OF GRAPHITE WHILE HEATING COMPOSITE POWDERS

Abstract

The paper presents results of graphite surface morphology research and graphite structure improvement (density increase) in nano-coatings of iron alloy powders while making isothermal heating up to 1200 °С and plastic deformation caused by tensile stress due to significant difference in iron and graphite thermal expansion coefficients. Framework structure formation of squeezed graphite on iron-group metal particles makes it possible to obtain composite powders for preparation of erosion-resistant composite materials.