Corrosion resistance of Mg-Al layered double hydroxide container-containing magnesium hydroxide films formed directly on magnesium alloy by chemical-free steam coating

Takahiro Ishizaki, Satoshi Chiba, Kouhei Watanabe, Hikaru Suzuki

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Direct growth of anticorrosive magnesium hydroxide films containing Mg-Al layered double hydroxide with anion-exchangeability on magnesium alloy were successfully realized by a simple, easy, environmentally friendly, and chemical-free steam coating method. The crystal structures, chemical composition, surface morphologies, and chemical bonding states of the film were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM) measurements. All the films had thicknesses ranging from 2 to 68 μm depending on the preparation conditions. The films had two crystal structures that were composed of crystalline Mg(OH)2 and carbonate Mg-Al layered double hydroxide (LDH). The corrosion resistant performances of the films in 5 wt% NaCl aqueous solution were investigated by electrochemical measurements. The potentiodynamic polarization curves revealed that the corrosion current density (j corr) of a sample treated at 433 K for 6 h decreased by more than six orders of magnitude as compared to that of the bare magnesium alloy, indicating that the film had an inhibiting effect on the corrosion reaction. The formation mechanism of the film was also discussed.

Original languageEnglish
Pages (from-to)8968-8977
Number of pages10
JournalJournal of Materials Chemistry A
Volume1
Issue number31
DOIs
Publication statusPublished - 2013 Aug 21

Fingerprint

Magnesium Hydroxide
Steam
Magnesium alloys
Containers
Magnesium
Corrosion resistance
Coatings
Corrosion
Crystal structure
Potentiodynamic polarization
Carbonates
Fourier transform infrared spectroscopy
Anions
Surface morphology
Film thickness
hydroxide ion
Current density
Electron microscopes
Negative ions
Crystalline materials

ASJC Scopus subject areas

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Materials Chemistry

Cite this

Corrosion resistance of Mg-Al layered double hydroxide container-containing magnesium hydroxide films formed directly on magnesium alloy by chemical-free steam coating. / Ishizaki, Takahiro; Chiba, Satoshi; Watanabe, Kouhei; Suzuki, Hikaru.

In: Journal of Materials Chemistry A, Vol. 1, No. 31, 21.08.2013, p. 8968-8977.

Research output: Contribution to journalArticle

@article{503e35bb46cd46e8b12a80c6750bfd16,
title = "Corrosion resistance of Mg-Al layered double hydroxide container-containing magnesium hydroxide films formed directly on magnesium alloy by chemical-free steam coating",
abstract = "Direct growth of anticorrosive magnesium hydroxide films containing Mg-Al layered double hydroxide with anion-exchangeability on magnesium alloy were successfully realized by a simple, easy, environmentally friendly, and chemical-free steam coating method. The crystal structures, chemical composition, surface morphologies, and chemical bonding states of the film were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM) measurements. All the films had thicknesses ranging from 2 to 68 μm depending on the preparation conditions. The films had two crystal structures that were composed of crystalline Mg(OH)2 and carbonate Mg-Al layered double hydroxide (LDH). The corrosion resistant performances of the films in 5 wt{\%} NaCl aqueous solution were investigated by electrochemical measurements. The potentiodynamic polarization curves revealed that the corrosion current density (j corr) of a sample treated at 433 K for 6 h decreased by more than six orders of magnitude as compared to that of the bare magnesium alloy, indicating that the film had an inhibiting effect on the corrosion reaction. The formation mechanism of the film was also discussed.",
author = "Takahiro Ishizaki and Satoshi Chiba and Kouhei Watanabe and Hikaru Suzuki",
year = "2013",
month = "8",
day = "21",
doi = "10.1039/c3ta11015j",
language = "English",
volume = "1",
pages = "8968--8977",
journal = "Journal of Materials Chemistry A",
issn = "2050-7488",
publisher = "Royal Society of Chemistry",
number = "31",

}

TY - JOUR

T1 - Corrosion resistance of Mg-Al layered double hydroxide container-containing magnesium hydroxide films formed directly on magnesium alloy by chemical-free steam coating

AU - Ishizaki, Takahiro

AU - Chiba, Satoshi

AU - Watanabe, Kouhei

AU - Suzuki, Hikaru

PY - 2013/8/21

Y1 - 2013/8/21

N2 - Direct growth of anticorrosive magnesium hydroxide films containing Mg-Al layered double hydroxide with anion-exchangeability on magnesium alloy were successfully realized by a simple, easy, environmentally friendly, and chemical-free steam coating method. The crystal structures, chemical composition, surface morphologies, and chemical bonding states of the film were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM) measurements. All the films had thicknesses ranging from 2 to 68 μm depending on the preparation conditions. The films had two crystal structures that were composed of crystalline Mg(OH)2 and carbonate Mg-Al layered double hydroxide (LDH). The corrosion resistant performances of the films in 5 wt% NaCl aqueous solution were investigated by electrochemical measurements. The potentiodynamic polarization curves revealed that the corrosion current density (j corr) of a sample treated at 433 K for 6 h decreased by more than six orders of magnitude as compared to that of the bare magnesium alloy, indicating that the film had an inhibiting effect on the corrosion reaction. The formation mechanism of the film was also discussed.

AB - Direct growth of anticorrosive magnesium hydroxide films containing Mg-Al layered double hydroxide with anion-exchangeability on magnesium alloy were successfully realized by a simple, easy, environmentally friendly, and chemical-free steam coating method. The crystal structures, chemical composition, surface morphologies, and chemical bonding states of the film were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), and scanning electron microscope (SEM) measurements. All the films had thicknesses ranging from 2 to 68 μm depending on the preparation conditions. The films had two crystal structures that were composed of crystalline Mg(OH)2 and carbonate Mg-Al layered double hydroxide (LDH). The corrosion resistant performances of the films in 5 wt% NaCl aqueous solution were investigated by electrochemical measurements. The potentiodynamic polarization curves revealed that the corrosion current density (j corr) of a sample treated at 433 K for 6 h decreased by more than six orders of magnitude as compared to that of the bare magnesium alloy, indicating that the film had an inhibiting effect on the corrosion reaction. The formation mechanism of the film was also discussed.

UR - http://www.scopus.com/inward/record.url?scp=84880399715&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84880399715&partnerID=8YFLogxK

U2 - 10.1039/c3ta11015j

DO - 10.1039/c3ta11015j

M3 - Article

VL - 1

SP - 8968

EP - 8977

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

SN - 2050-7488

IS - 31

ER -