Corrosion behavior of carbon film coated magnesium alloy with electroless plating nickel interlayer

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Yixiong Wu

Detail(s)

Original languageEnglish
Pages (from-to)42-47
Journal / PublicationJournal of Materials Processing Technology
Volume219
Issue number1
Publication statusPublished - 2015

Abstract

The carbon film with electroless nickel interlayer (Ni + C) was fabricated to improve the corrosion resistance of the magnesium alloy GW83. Compared to other coatings used in this study, the dense Ni + C coating improved adhesion with the substrate. The corrosion potential (Ecorr) of the Ni + C coated magnesium alloy was about -1.37 V vs saturated calomel electrode (SCE) in contrast to about -1.67 V vs SCE of the bare one in 3.5 wt% NaCl solution. The corrosion current density was reduced from 186 μA cm-2 to 11 μA cm-2. The 5 h immersion test revealed that the Ni + C coated magnesium alloy GW83 showed much less corrosion compared to the bare alloy. These evidences indicated that applying Ni + C coating could effectively improve the corrosion resistance of the magnesium alloy GW83.

Research Area(s)

  • Corrosion resistance, Magnesium alloy, Physical vapor deposition, Thin film

Citation Format(s)

Corrosion behavior of carbon film coated magnesium alloy with electroless plating nickel interlayer. / Mao, Yan; Li, Zhuguo; Feng, Kai et al.

In: Journal of Materials Processing Technology, Vol. 219, No. 1, 2015, p. 42-47.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review