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Browsing by Subject "micro-arc oxidation"

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    Item type:Article, Access status: Open Access ,
    Characterization of oxide layers made on aluminum alloy 7075 by different methods
    (2016) Jędrusik, Mateusz; Kopia, Agnieszka; Dębowska, Aleksandra; Petrzak, Paweł; Koclęga, Damian; Kalemba-Rec, Izabela
    Aluminum and aluminum alloys are now being widely used as materials for structural applications due to a number of valuable properties. Improvement in the functional and decorative properties of aluminum can be obtained by forming an oxide layer on its surface. The aim of the present study was to produce and compare the properties of oxide layers on the surface of aluminum alloy 7075 and compare their properties. The methods that were used during the study were as follows: phosphating, micro-arc oxidation, and a chemical method involving the formation of a passive layer. The layers were subjected to corrosion tests. SEM and EDS methods were used for characterization of the received results. Also, some tests on an optical profilometer were done. It was proven that the micro-arc oxidation method allowed us to obtain a layer with the greatest thickness and highest corrosion resistance.