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

doi:10.1016/j.corsci.2017.06.008

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

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	99-105
Number of pages	7
Journal	Corrosion Science
Volume	125
DOIs	https://doi.org/10.1016/j.corsci.2017.06.008
Publication status	Published - 2017 Aug 15

Keywords

Ca-added Magnesium alloy
Composite oxide film
Corrosion resistance
Micro-arc oxidation

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)
Materials Science(all)

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10.1016/j.corsci.2017.06.008

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

abstract = "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.",

keywords = "Ca-added Magnesium alloy, Composite oxide film, Corrosion resistance, Micro-arc oxidation",

author = "Li, {Oi Lun} and Mika Tsunakawa and Yuta Shimada and Kae Nakamura and Kazuhito Nishinaka and Takahiro Ishizaki",

note = "Funding Information: This research was partially supported by a Grant for Advanced Industrial Technology Development from the New Energy and Industrial Technology Development Organization (NEDO) of Japan, a Grant-in-Aid for Young Scientists (B) (No. 16K18249) from the Japan Society for the Promotion of Science, and the Japan Science and Technology Agency (JST), Adaptable and Seamless Technology Transfer Program through Target-driven R&D (A-step: No. AS251Z02997K & AS2815047S). Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

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doi = "10.1016/j.corsci.2017.06.008",

language = "English",

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T1 - Corrosion resistance of composite oxide film prepared on Ca-added flame-resistant magnesium alloy AZCa612 by micro-arc oxidation

AU - Li, Oi Lun

AU - Tsunakawa, Mika

AU - Shimada, Yuta

AU - Nakamura, Kae

AU - Nishinaka, Kazuhito

AU - Ishizaki, Takahiro

N1 - Funding Information: This research was partially supported by a Grant for Advanced Industrial Technology Development from the New Energy and Industrial Technology Development Organization (NEDO) of Japan, a Grant-in-Aid for Young Scientists (B) (No. 16K18249) from the Japan Society for the Promotion of Science, and the Japan Science and Technology Agency (JST), Adaptable and Seamless Technology Transfer Program through Target-driven R&D (A-step: No. AS251Z02997K & AS2815047S). Publisher Copyright: © 2017 Elsevier Ltd

PY - 2017/8/15

Y1 - 2017/8/15

N2 - 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.

AB - 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.

KW - Ca-added Magnesium alloy

KW - Composite oxide film

KW - Corrosion resistance

KW - Micro-arc oxidation

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SN - 0010-938X

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JO - Corrosion Science

JF - Corrosion Science

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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