Abstract
Mathematical simulation of the heat transfer between a WC-Co coating and an aluminum alloy (Al-4%Cu) substrate during HVOF spraying is provided. This simulation includes the investigation of tem-perature evolution, coating solidification, fusion and solidification in the substrate interfacial region, and particular features of the substrate-coating thermal interaction. Optimal thermal conditions for forming the coating structure are estimated. The results obtained are used in another paper (Ref 15), “Formation of Structure of WC-Co Coating on Aluminum Alloy Substrate During High-Velocity Oxygen-Fuel (HVOF) Spraying,” to predict the structural parameters, which agree well with the experimental data.
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