Corrosion resistance of composite oxide film prepared on Ca-added flame-resistant magnesium alloy AZCa612 by micro-arc oxidation

Oi Lun Li, Mika Tsunakawa, Yuta Shimada, Kae Nakamura, Kazuhito Nishinaka, Takahiro Ishizaki

研究成果: Article査読

13 被引用数 (Scopus)

抄録

A composite oxide film was prepared on a flame-resistant magnesium alloy AZCa612 by micro-arc oxidation (MAO). The thickness of the film was approximately 30 μm, where the film was composed of mainly of MgO and Mg-Mn-Al oxide. Potentiodynamic polarization curve measurements demonstrated that the corrosion current density of the composite oxide film coated AZCa612 decreased by 6 orders of magnitude compared to bare substrate. Immersion tests in 5 wt.% NaCl solution after 42 day indicated the coating phase did not change significantly, which proved that the MAO coating have superior corrosion resistance in 5 wt.% NaCl aqueous solution.

本文言語English
ページ(範囲)99-105
ページ数7
ジャーナルCorrosion Science
125
DOI
出版ステータスPublished - 2017 8 15

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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