This study investigates structure and properties of the plasma sprayed coating from Fe–30Cr-0.6C steel that was then finished using electromechanical treatment (EMT). As a consequence of the coating thus formed, surface microhardness under a 200 gf load increased from 3.4 ± 0.4 GPa to 5.2 ± 0.4 GPa and number of pores in the coating structure reduced from 8.0 ± 1.5% to 2.0 ± 0.5%. The results of the microstructural studies showed fundamental changes of the plasma sprayed coating treated by the EMT with the formation of nanostructured crystalline phases. The obtained results revealed the high potential of the EMT for posttreatment of plasma sprayed coatings.

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