Abstract
This study investigates structure and properties of the plasma-sprayed coating from Fe-30Cr 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 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 post-treatment of plasma-sprayed coatings.
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Acknowledgments
Authors are grateful to Yulia Ivannikova for technical support in preparing the manuscript, Konstantin Vorkachev for scanning electron microscopy investigation (State Target No. 075-00746-19-00), and Tatiana Sviridova for x-ray investigation (RFBR 18-08-00842).
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Ivannikov, A.Y., Kalita, V.I., Komlev, D.I. et al. The Effect of Electromechanical Treatment on Structure and Properties of Plasma-Sprayed Fe-30Cr Coating. J Therm Spray Tech 28, 883–892 (2019). https://doi.org/10.1007/s11666-019-00868-y
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DOI: https://doi.org/10.1007/s11666-019-00868-y