Study of the Crack Resistance of Microarc Oxidation Coatings after Laser Doping with Zirconium Oxide

In this paper we present the results of a study of crack resistance of a microarc oxidation coating (MAO) after laser doping with zirconium oxide. Crack resistance was determined by indentation with imprint imaging using atomic force microscopy. Laser doping with zirconium oxide was established to l...

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Bibliographic Details
Published in:	Technical physics Vol. 64; no. 11; pp. 1609 - 1614
Main Authors:	Lapitskaya, V. A., Kuznetsova, T. A., Chizhik, S. A., Komarov, A. I., Frolov, Yu. I., Romanyuk, A. S.
Format:	Journal Article
Language:	English
Published:	Moscow Pleiades Publishing 01-11-2019 Springer Nature B.V
Subjects:	ATOMIC FORCE MICROSCOPY Classical and Continuum Physics COATINGS CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Crack propagation CRACKS CRYSTAL DOPING DAMAGE Doping HARDENING Indentation LASER RADIATION Lasers OXIDATION Oxidation resistance Physics Physics and Astronomy STRESS INTENSITY FACTORS SURFACES Zirconium ZIRCONIUM OXIDES
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Summary:	In this paper we present the results of a study of crack resistance of a microarc oxidation coating (MAO) after laser doping with zirconium oxide. Crack resistance was determined by indentation with imprint imaging using atomic force microscopy. Laser doping with zirconium oxide was established to lead to a significant hardening of the MAO coating. The stress intensity factor increases by a factor of 2.7 while surface damage decreases by a factor of 2 compared with the initial MAO coating.
ISSN:	1063-7842 1090-6525
DOI:	10.1134/S1063784219110173