The effect of electromechanical treatment on structure and properties of plasma sprayed Ni–20Cr coating

Autor: V. I. Kalita, A. Yu. Ivannikov, D. I. Komlev, V. P. Bagmutov, I. N. Zakharov, A. A. Radyuk, S. N. Parshev
Rok vydání: 2016
Předmět:
Zdroj: Journal of Alloys and Compounds. 655:11-20
ISSN: 0925-8388
DOI: 10.1016/j.jallcom.2015.09.125
Popis: This study investigates structure and mechanical properties of air plasma sprayed coatings from Ni–20Cr alloy, that were then finished using electromechanical treatment (EMT). As a consequence of the coating thus formed, surface microhardness at 200 gf increased from 1950 ± 250 MPa to 4200 ± 200 MPa, elastic modulus increased from 67 ± 3 GPa to 131 ± 5 GPa, shear adhesion strength increased from 55 ± 15 MPa to 183 ± 15 MPa, and number of pores in the coating structure reduced from 8.0 ± 1.5% to 2.0 ± 0.5%.
Databáze: OpenAIRE