Tihonenko V. The improvement of normative and technical providing of quality of coatings on aluminum alloys produced by microarc oxidation

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0413U003676

Applicant for

Specialization

  • 05.01.02 - Стандартизація, сертифікація та метрологічне забезпечення

24-05-2013

Specialized Academic Board

К 64.108.04

Ukrainian Engineering Pedagogics Academy

Essay

The object of the research - quality control of coatings on aluminum and its alloys, produced by microarc oxidation (MAO). The aim of the research - improving the quality assessment of hardwearing coatings on aluminum alloys produced by microarc oxidation (MAO-coating), based on the use of modern control methods and development of technical and normative providing. Methods: methods of qualimetry, statistical control of product quality, experiment planning; methods of contact potential difference, exoelectron emission, methods for measuring thickness, microhardness and porosity, wear test. Scientific novelty: novel regression models corresponding to dependencies of microhardness and thickness of hardened coating of the microarc oxidation technological parameters are obtained; the quality control method of MAO-coating is improved on the basis of combination of methods for measuring microhardness and thickness, porosity and wear-resistance with methods of exoelectron emission and contact potential difference; the non-destroying exoemission method for determining porosity of the materials is proposed; method of generation obtaing working substances based on MAO-coating for solid-state dosimeters is first proposed and developed. Practical significance: proposals for comprehensive program of standardization coating technology by microarc oxidation method are elaborated; recommendations for writing of standard for microarc oxidation technology of aluminum alloys is conceived and project of current organization standard, test method of MAO-coating are suggested; proposals for improving normative providing of exoemission methods are suggested. Implementation: research results have been taken to implement in the Institute of solid-state physics, materials science and technologies NSC "Kharkov Institute of Physics and Technology" and in the "Ukrspetsmash", have been implemented to the teaching process in UIPA.

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