Optimization of Vacuum-Plasma Coating Application Technology by Strength and Plasticity Criteria

The results of multi-criteria optimization of vacuum-plasma coating application modes on titanium alloys as applied to compressor blades of a gas turbine engine are presented. Based on operating conditions and part failures, the parameters of short-term static strength and plasticity were selected as optimization criteria for the technological process of vacuum-plasma coating application. When selecting the controlled parameters, the influence of design, technological and operational factors was taken into account in a complex way. Carrying out the experiment, its statistical analysis allowed to build a regression model of optimization criteria dependencies on design, technological and operational factors. The obtained dependencies adequately describe the process and they can be used for analysis and optimization of the technological process of vacuum-plasma coating application.