Abstract
AbstractThe mathematical simulation of the thermal interaction between a 34Cr–4Mo steel substrate (UNS-G41350) and a coating formedfrom droplets of WC–12Co powder particles during high velocity oxyfuel (HVOF) spraying is undertaken in the present paper. Analysis of the heat transfer processes permitted investigation of temperature evolution, coating solidification, substrate fusion and solidification, and in particular features of the thermal interactions between the substrate and the coating as well as the coating layers. The analysis also allowed the optimal conditions of the substrate and coating structure formation to be estimated. The results obtained are used in Part 2 of this paper (to be published later) to predict the structural parameters, which are then compared with the experimental data.MST/3039
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