Variability of Surface Strengthening of Aluminum Cylinders of Internal Combustion Engines

Abstract:

This article discusses the ways of intensification of the oxidation process with the formation of surface properties necessary to increase the service life of one of the parts of an internal combustion engine - a cylinder made of cast aluminum alloy. A brief overview of existing technologies for hardening the aluminum surface is presented. Environmentally friendly options are proposed for using the potential of processes that have accumulated energy within an electrolytic cell by activating the interelectrode gap and forming an oxide with desired properties. The main difference from the existing model approaches of oxide formation lies in the parallel excitation of the main participant in the process, oxygen, in order to dominate it over other, oxygen-containing donors. Ways of using the energy of cavitation phenomena due to acoustic resonance in an electrolytic solution are proposed. Redistribution of the field potential by replacing a flat cathode with a pointed one changed the conductivity conditions in the interelectrode gap as a result of the electroconvective action. The structure of the oxide layer, phase changes, and physical properties confirming the originality of oxide coatings have been investigated.

• Periodical: International Journal of Engineering Research in Africa (Volume 54)
• Pages: 12-22
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.54.12
• Online since: June 2021
• Authors: Nikolay F. Kolenchin*, Denis V. Denisenko
• Keywords: Aluminum Oxide, Oxidation, Phase Composition, Porosity, Strengthening

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