ANALYSIS OF THE PROPERTIES OF THE AL2O3 / IF-WS2 SURFACE LAYERS OBTAINED IN THREE-COMPONENT’ ELECTROLYTE

1 KORZEKWA Joanna
Co-authors:
2 GĄDEK-MOSZCZAK Aneta 1 BARA Marek 1 BOCHENEK Dariusz
Institutions:
1 University of Silesia, Faculty of Computer and Materials Science, ul. Zytnia 10, 41–200 Sosnowiec, Poland, EU, joanna.korzekwa@us.edu.pl, marek.bara@us.edu.pl, dariusz.bochenek@us.edu.pl
2 Cracow University of Technology, Faculty of Mechanical Engineering, Al. Jana Pawla II 37, 31-864 Krakow, Poland, EU, aneta.gadek-moszczak@mech.pk.edu.pl
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
1068-1073
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
24 views / 13 downloads
Abstract

Anodic oxidation of aluminum alloy in a ternary solution of SAS (sulfuric, adipic and oxalic acids) was carried out in order to obtain the aluminum oxide layer (Al2O3) and Al2O3 with inorganic fullerene-like tungsten disulfide (IF-WS2) named in article as Al2O3/IF-WS2. The micro-hardness, thickness, geometric structure of the surface (SGP) and the microstructures of Al2O3 and Al2O3/IF-WS2 were investigated. The influence of electrolysis time, temperature and type of electrolyte on the micro-hardness of coatings was studied using the Taguchi statistical method. A L2 orthogonal array with the three main factors of control at two levels each was studied. Signal-to-noise ratio showed that the great influence of temperature on micro-hardness. The optimized electrolysis conditions were defined.

Keywords: Aluminum oxide layer, inorganic fullerene-like tungsten disulfide, microstructures, hardness
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