Cermet Plasma Coatings with Titanium Carbide
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High-grade iron S27 alloy and cermet S27 + 50 vol % TiC are sprayed in Ar-N2 plasma with local protection from the air with a nozzle application. Under S27 alloy spraying, the oxygen content in the coating increases from 0.32 to 0.98%, the nitrogen content increases from 0.038 to 0.15%, and the carbon content is reduced from 4.26 to 3.47%. In the cermet coatings, the oxygen content increases from 0.56 to 1.96%, the nitrogen content increases from 0.068 to 0.64%, and the carbon content is reduced from 10.5 to 8.19%. Changes in the structure and microhardness of the materials investigated depend on the C, O, and N content and the rate of consolidation of sprayed particles.
Keywords:plasma cermet coatings S27 alloy cermet S27 + 50 vol % TiC content of oxygen carbon and nitrogen in coatings microhardness
This work was supported by the Russian Foundation for Basic Research, grants nos. 17-08-00059a, 18-08-00842, 16-48-700381, 16-08-00493a. The experiments on plasma spraying were carried out according to the state task no. 075-00746-19-00.
CONFLICT OF INTERESTS
The authors declare that they have no conflict of interest.
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