Problems of materials science

Fundamentals of structural theory of wear resistance. Wear caused by abrasive particles located in the gap between adjacent parts

“…An extremely dispersed structure can be produced using the continuous wave CO 2 -laser for thermal treatment of the deposited gas-thermal coating. [4].…”

“…Powder metallurgy provides ample technological possibilities for the production of composite antifriction matrix-filled metal-based materials with regularly alternating wear resistant and antifriction regions. The indicated technological potentials of powder metallurgy can also be realized using gas-thermal deposition of powder alloys with or without fusing of the produced coatings [4].…”

“…2) [4]. The mechanism of surface failure is similar to the processes of wear with fixed and loose abrasive particles under heavy loads.…”

“…x cr yd P = (4) where y and x are constants, d is the size of the grain. Crushing of abrasive grains intensifies the wear process causing a sort of microstrike that leads to the formation of crater-shaped recesses into which the fragments of abrasive are stuck.…”