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The influence of the cathode shape on the phase composition and structure during oxidation

The microstructure of the oxide layer and the density distribution of the phases in the volume of the film in two positions of the cathode — stationary and during its rotation — were investigated. | The influence of the cathode shape on the phase composition and structure during oxidation International Journal of Mechanical Engineering and Technology IJMET Volume 10 Issue 03 March 2019 pp. 1210 1216 Article ID IJMET_10_03_123 Available online at http www.iaeme.com ijmet issues.asp JType IJMET amp VType 10 amp IType 3 ISSN Print 0976-6340 and ISSN Online 0976-6359 IAEME Publication Scopus Indexed THE INFLUENCE OF THE CATHODE SHAPE ON THE PHASE COMPOSITION AND STRUCTURE DURING OXIDATION N. F. Kolenchin Chief Researcher of Technopolis Doctor of Engineering Associate Professor Industrial University of Tyumen Volodarskogo 38 Tyumen Russia 652000 ABSTRACT The process of anodizing aluminium alloys in an ozone-containing electrolyte when a flat cathode is replaced with a needle shape was studied. The microstructure of the oxide layer and the density distribution of the phases in the volume of the film in two positions of the cathode stationary and during its rotation were investigated. The mechanical properties of the surface layer were determined. Key words anodizing needle-shaped cathode ozonation pore microgeometry phase distribution surface hardness activation. Cite this Article N. F. Kolenchin The Influence of the Cathode Shape on the Phase Composition and Structure During Oxidation International Journal of Mechanical Engineering and Technology 10 3 2019 pp. 1210 1216. http www.iaeme.com IJMET issues.asp JType IJMET amp VType 10 amp IType 3 1. INTRODUCTION The search for ways to activate the interelectrode gap during oxidation is one of the promising areas in the technology of hardening the surface layer of aluminium alloys. For most researchers the range of factorial variability is determined by the boundaries of the electrolytic cell and as a rule is associated with changes in the chemical composition of the electrolyte and the conditions of energy excitation. The performance is estimated by the degree of activity of the main participants of the process - .