Terleeva, OP Oh, Y Slonova, AI Kireenko, IB Ok, MR Ha, HP 2024-01-21T04:32:27Z 2024-01-21T04:32:27Z 2021-09-03 2005-09 1345-9678 https://pubs.kist.re.kr/handle/201004/136176 Positive (anode) and negative (cathode) voltage-time charts have been registered for half-wave anodic, AC polarization, and AC-C polarization and for negative polarization (C-packets), respectively. During the process, the visual characteristic changes of the microdischarges were also analyzed, namely: the color and dimension of the microdischarges and the character of the movement Oil the surface. The quantitative parameters for the microplasma process stages were also defined. For different aluminum alloys, it was found that spark voltage and microarc voltage are not dependent on the alloy composition and the current density. It was likewise shown that a negative current has no influence on the process parameter, at the initial stages of the AC microplasma processes. The study's hypothesis on the role of a negative current in initiating phase transition was therefore confirmed. English JAPAN INST METALS DIELECTRIC BREAKDOWN VALVE METALS FILMS Quantitative parameters and definition of stages of anodic-cathodic microplasma processes on aluminum alloys Article 10.2320/matertrans.46.2077 1 MATERIALS TRANSACTIONS, v.46, no.9, pp.2077 - 2082 MATERIALS TRANSACTIONS 46 9 2077 2082 scie scopus 000232258000024 2-s2.0-27744467489 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article DIELECTRIC BREAKDOWN VALVE METALS FILMS microplasma processes aluminum allay voltage-time chart spark voltage microarc voltage