Abstract
An in-situ TiNx-reinforced Fe-based amorphous composite coating was fabricated by reactive plasma-spraying. Moreover, well formed TiNx exhibited excellent bonding interface with the amorphous. Besides, the composite coating displayed higher microhardness and resistance to plastic deformation compared to unadulterated amorphous coatings. Additionally, the composite coating reformed the smooth-stepped brittle fracture morphology of the amorphous coating, due to the hindered expansion of cracks between the two phases. Furthermore, delamination, oxidation, and other negative wear phenomena of the amorphous coating were effectively improved in the composite coating, especially under high load and high-speed friction conditions. The integration of TiNx had a significant positive effect on improving the friction-induced crack damage of Fe-based amorphous coatings, thus, the wear resistance.
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