Wear Resistance of Detonation Coatings with Amorphous Structure Under Conditions of Friction Against Nonrigidly Fixed Abrasive Particles

The possibility of forming coatings with a high content of amorphous phase by knock (detonation) spraying of a powder of alloy Fe 66 Cr 10 Nb 5 B 19 of fraction 45 – 75 μm is considered. Results of comparative tests of the coatings and of a stainless steel check test piece for abrasive wear under friction against nonrigidly fixed abrasive particles conducted according to ASTM G65D are presented. The wear mechanisms of the knock-sprayed coatings with partially crystallized structure are studied.