Study of Cermet Coatings Formed By Carbo-Vibro-Arc Hardening and Containing Nanosized Al2O3.

Autor:	Titov, N. V., Kolomeychenko, A. V., Basinyuk, V. L.
Předmět:	CERAMIC metals SURFACE coatings ALUMINUM oxide WEAR resistance MACHINE parts
Zdroj:	Refractories & Industrial Ceramics; Mar2022, Vol. 62 Issue 6, p672-675, 4p
Abstrakt:	Results of studies of the physical and mechanical properties of cermet coatings formed during carbo-vibro-arc hardening (CVAH) using a multicomponent paste containing nanosized aluminum oxide Al2O3 in its composition are presented. It was found that the maximum microhardness of such coatings was 1110 HV at the coating surface and 835 HV at the interface with the base metal. The microstructure was very fine with uniform distribution of strengthening ceramic phases B4C and Fe2B throughout the coating. The wear resistance was 1.9 times higher than in coatings that did not contain nanosized components in the multicomponent paste for CVAH. The results of the studies showed that these coatings are promising for hardening of machine parts of various functional purposes. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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