Corrosion resistance of Mg(OH)2/Mg-Al layered double hydroxide composite film formed directly on combustion-resistant magnesium alloy AMCa602 by steam coating

Takahiro Ishizaki, Naosumi Kamiyama, Kouhei Watanabe, Ai Serizawa

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Films of the Mg(OH)2/Mg-Al layered double hydroxide composite were formed on the combustion-resistant magnesium alloy AMCa602 by steam coating and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. The corrosion-resistance performances of the films in a 5wt% NaCl solution were investigated using electrochemical measurements. The corrosion current density of the sample that was steam-coated at 433K for 6h using the aqueous solution containing 200mM Al(NO3)3 decreased significantly more than that of the bare AMCa602. The correlations between the Mg-Al LDH content in the films, Al(NO3)3 concentration in the aqueous solutions, and corrosion current densities were investigated.

Original languageEnglish
Pages (from-to)76-84
Number of pages9
JournalCorrosion Science
Volume92
DOIs
Publication statusPublished - 2015 Mar 1

Fingerprint

Steam
Composite films
Magnesium alloys
Corrosion resistance
Coatings
Current density
Corrosion
Fourier transform infrared spectroscopy
X ray diffraction
Scanning electron microscopy
Composite materials
hydroxide ion

Keywords

  • A. Magnesium
  • B. Polarization
  • B. SEM
  • B. XRD
  • C. Passive films

ASJC Scopus subject areas

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

Cite this

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abstract = "Films of the Mg(OH)2/Mg-Al layered double hydroxide composite were formed on the combustion-resistant magnesium alloy AMCa602 by steam coating and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. The corrosion-resistance performances of the films in a 5wt{\%} NaCl solution were investigated using electrochemical measurements. The corrosion current density of the sample that was steam-coated at 433K for 6h using the aqueous solution containing 200mM Al(NO3)3 decreased significantly more than that of the bare AMCa602. The correlations between the Mg-Al LDH content in the films, Al(NO3)3 concentration in the aqueous solutions, and corrosion current densities were investigated.",
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AU - Ishizaki, Takahiro

AU - Kamiyama, Naosumi

AU - Watanabe, Kouhei

AU - Serizawa, Ai

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Films of the Mg(OH)2/Mg-Al layered double hydroxide composite were formed on the combustion-resistant magnesium alloy AMCa602 by steam coating and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. The corrosion-resistance performances of the films in a 5wt% NaCl solution were investigated using electrochemical measurements. The corrosion current density of the sample that was steam-coated at 433K for 6h using the aqueous solution containing 200mM Al(NO3)3 decreased significantly more than that of the bare AMCa602. The correlations between the Mg-Al LDH content in the films, Al(NO3)3 concentration in the aqueous solutions, and corrosion current densities were investigated.

AB - Films of the Mg(OH)2/Mg-Al layered double hydroxide composite were formed on the combustion-resistant magnesium alloy AMCa602 by steam coating and characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, and scanning electron microscopy. The corrosion-resistance performances of the films in a 5wt% NaCl solution were investigated using electrochemical measurements. The corrosion current density of the sample that was steam-coated at 433K for 6h using the aqueous solution containing 200mM Al(NO3)3 decreased significantly more than that of the bare AMCa602. The correlations between the Mg-Al LDH content in the films, Al(NO3)3 concentration in the aqueous solutions, and corrosion current densities were investigated.

KW - A. Magnesium

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KW - B. SEM

KW - B. XRD

KW - C. Passive films

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