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dc.contributor.author황인준[황인준]ko
dc.contributor.author고영건ko
dc.contributor.author이강민[이강민]ko
dc.contributor.author신동혁[신동혁]ko
dc.date.accessioned2015-12-17T01:31:50Z-
dc.date.available2015-12-17T01:31:50Z-
dc.date.created2015-11-13-
dc.date.issued201103-
dc.identifier.citationMATERIALS TRANSACTIONS, v.52, no.3, pp.580 - 583-
dc.identifier.issn1345-9678-
dc.identifier.urihttp://hdl.handle.net/YU.REPOSITORY/25512-
dc.identifier.urihttp://dx.doi.org/10.2320/matertrans.M2010395-
dc.description.abstractThe paper demonstrated the anti-corrosion properties of an AZ91 Mg alloy fabricated via microarc discharge oxidation under an AC condition with various pulse frequencies ranging from 60 Hz to 2000 Hz. The structural features and phase compositions of the coating layers were characterized by utilizing scanning electron microscope and X-ray photoelectron spectroscopy. The optimum frequency for the coating layers with thick, uniform thicknesses was found to be 500 Hz for the conditions used in this study. This fact was explained by the change in the mode of spark discharge during coating, resulting in the occurrence of surface cracks as well as the transformation of Mg(OH)(2) to MgO. Potentio dynamic polarization tests in 3.5 mass% NaCl solution revealed that the sample coated at a frequency of 500 Hz exhibited a corrosion potential of -1.42 V (vs. Ag/AgCl), suggesting a better corrosion resistance as compared to the other conditions. [doi:10.2320/matertrans.M2010395]-
dc.language영어-
dc.publisherJAPAN INST METALS-
dc.subjectPLASMA ELECTROLYTIC OXIDATION-
dc.subjectAM50 MAGNESIUM ALLOY-
dc.subjectCERAMIC COATINGS-
dc.subjectMICROSTRUCTURE-
dc.subjectRESISTANCE-
dc.subjectSILICATE-
dc.subjectALUMINUM-
dc.titleEffect of Pulse Frequency on Corrosion Behavior of AZ91 Mg Alloy Treated by Microarc Discharge Oxidation Coating-
dc.typeArticle-
dc.identifier.wosid000290461000055-
dc.identifier.scopusid2-s2.0-79955786761-
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