The Effect of Electromechanical Treatment on Structure and Properties of Plasma-Sprayed Fe-30Cr Coating

• DOI: 10.1007/s11666-019-00868-y
• Publication Date: 2019-05-07T20:47:18Z
• Authors: A. Yu. Ivannikov; V. I. Kalita; D. I. Komlev; A. A. Radyuk; A. V. Alpatov; I. N. Zakharov; S. N. Grigoriev; M. V. Prozhega
• Keywords: 02 engineering and technology; 0210 nano-technology

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.