Wear Resistance of Carbide and Boride Coatings on U8A Steel

Authors: Khizhnyak V.G.¹; Korol' V.I.¹; Kostenko A.D.²

Source: Powder Metallurgy and Metal Ceramics, Volume 42, Numbers 11-12, November 2003 , pp. 644-648(5)

Publisher: Springer

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Abstract:

Wear resistance measurements have been made with U8A steel bearing protective coatings based on the carbides of titanium, vanadium, and chromium or iron borides, for various forms of wear. The carbide and boride coatings raise the wear resistance considerably (by factors of 6-30 in accordance with the type of wear). Measurements have been made on the microhardness, microbrittleness, and adhesion of the coating to the substrate, which are effective characteristics that quite fully reflect the effects of the microhardness and state of stress, structure, and defectiveness on the wear resistance.

Keywords: carbide coatings; steel; wear resistance; cracking resistance; microhardness

Document Type: Research article

DOI: http://dx.doi.org/10.1023/B:PMMC.0000022206.96897.eb

Affiliations: 1: National Technical University of Ukraine «Kiev Polytechnic Institute”,Prospect Pobedy 37, Kiev, Ukraine 03056 2: Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, ul. Krzhizhanovskogo 3, Kiev, Ukraine 03142

Publication date: 2003-11-01