MICRO-HARDNESS OF THE PARTICLES OF COATING AT ELECTRIC-ARC SPUTTERING WITH PULSING JET SPRAYING

Royanov Vyacheslav; Kriuchkov Mykyta; Irina Zakharova; Matviyenko Vladimir

doi:10.31435/rsglobal_ws/28022021/7445

Royanov Vyacheslav Doctor of Technical Sciences, Professor, Department of Automation and Mechanization of Welding Production, State Higher Educational Institution «Priazovskiy State Technical University», Ukraine http://orcid.org/0000-0001-5379-9096
Kriuchkov Mykyta Aspirant, Department of Automation and Mechanization of Welding Production, State Higher Educational Institution «Priazovskiy State Technical University», Ukraine https://orcid.org/0000-0003-1012-0156
Irina Zakharova PhD, Associate Professor, Department of Automation and Mechanization of Welding Production, State Higher Educational Institution «Priazovskiy State Technical University», Ukraine https://orcid.org/0000-0002-3492-0134
Matviyenko Vladimir Doctor of Technical Sciences, Professor, Department of Automation and Mechanization of Welding Production, State Higher Educational Institution «Priazovskiy State Technical University», Ukraine

DOI: https://doi.org/10.31435/rsglobal_ws/28022021/7445

Keywords: micro-hardness, non-metallic inclusions, liquid inclusions, liquid metal, electrode, electric-arc sputtering, pulsating jet, coating, air consumption, pulsating supply, sputtered coating.

Abstract

Intense oxidation of sputtered metal happens to be at electric-arc sputtering, due to oxygen, contained in the air, it leading to drastic reduction of the content of alloying elements in the coating.
This work contains a method of evaluation of micro-hardness of the particles of the coating, deposited with pulsating air supply into the area of electrodes melting by introducing an additional element into the spraying head of the electric-arc metallizator Also performed was estimation of the amount of non-metallic inclusion. Also included are the results of alternations in particles micro-hardness, depending upon the frequency of pulsations at EAM with application of a pulsating spraying jet.

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