Effect of ZrB_2, CrB_2 and TiB_2 Additives on the Tribological Characteristics of NiAI-Based Gas-thermal Coatings

摘要

In this study the influence of the TiB_2, ZrB_2, and CrB_2 additives into NiAl-intermetallics on their wear behavior under friction conditions at the high temperature in the pair with steel has been investigated. It was shown, that the borides additives have influenced on the wear mechanism, significantly increasing the wear resistance of composite coatings pointed out. Among the coatings studied the NiAl -15 wt. % CrB_2 coating showed the best result.