Effect of Plasma Deposition Production Parameters on Protective and Functional Coating Formation

Improvement of plasma deposition wear-resistant coatings technology is demonstrated. At the same time, special attention is paid to one of the most important parameters, i.e., thickness of a functional layer, since when using plasma deposition methods it has a significant impact on coating quality, as well as functionality and productivity of the process. Based upon planning an experiment, mathematical models are developed that make it possible to establish a relationship between coating thickness and plasma spraying process production parameters. Results of analyzing the dependences obtained show that coating thickness is most affected by plasma torch arc current strength.