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Title: Microstructure and properties of composite coatings obtained on aluminium alloys
Authors: Bara, Marek
Kmita, Tomasz
Korzekwa, Joanna
Keywords: Al2O3; Composite coatings; Hard anodising; Aluminum
Issue Date: 2016
Citation: Archives of Metallurgy and Materials, 2016, iss. 3, s. 1107-1112
Abstract: This paper presents methods of modifying the anode surface layers of Al2O3 by introducing carbon to their microstructure. Composite coatings were prepared using two different methods. In the first, coatings were formed by means of oxidation under constant current conditions. Anodic oxidation of aluminium was conducted in a multicomponent electrolyte with the addition of organic acids and graphite. The second method was based on the formation of oxide coatings in an electrolyte without the addition of graphite or heat treatment of the layers of succinic acid. The obtained coatings were tested using SEM, TEM, and GDOES (glow discharge optical emission spectrometry) and their tribological and stereometric properties were measured. The study demonstrated the beneficial effects of the methods when used to improve the tribological properties of sliding couples.
DOI: 10.1515/amm-2016-0238
ISSN: 1733-3490
Appears in Collections:Artykuły (WNŚiT)

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