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http://dx.doi.org/10.6111/JKCGCT.2018.28.2.080

Corelation between crystalline phase and corrosion resistance of Mg alloy with different PEO conditions. II. Corrosion resistance  

Kim, Bae-Yeon (Dept. of Adv. Mat. Eng., University of Incheon)
Kim, Yong-Nam (Material Testing Center, Korea Testing Laboratory)
Jeon, Min-Seok (Material Testing Center, Korea Testing Laboratory)
Ham, Jae-Ho (Dept. of Adv. Mat. Eng., University of Incheon)
Publication Information
Journal of the Korean Crystal Growth and Crystal Technology / v.28, no.2, 2018 , pp. 80-84 More about this Journal
Abstract
Mg alloys AZ31 and AZ91 were Plasma-Electrolytic-Oxidized in Na-P and Na-Si system electrolyte at various concentration, applied voltage and time. Thickness and surface roughness of PEO coating were examined. Salt spraying test were carried out to compare their corrosion resistances. Generally, corrosion resistances rate were increased as thickness and crystallinity increasing. Size of pore being larger, long term corrosion resistance decreased. It is turned out that $Mg_2SiO_4$ and other crystalline phase rather than MgO might be increase corrosion resistance dramatically.
Keywords
PEO; Mg; Coating; Corrosion; Electrolyte; Na-P; Na-Si;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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