Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution

A. A. El-Moneim; E. Akiyama; K. M. Ismail; K. Hashimoto

doi:10.1016/j.corsci.2011.05.043

Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution

A. A. El-Moneim, E. Akiyama, K. M. Ismail, K. Hashimoto

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

25 Citations (Scopus)

Abstract

Corrosion behaviour of sputter-deposited Mg-Zr alloys was examined in a borate buffer solution of pH 8.7. XRD measurements showed that the alloys were supersaturated with Zr. The addition of 29. at.% Zr or more was very effective in increasing the corrosion resistance of Mg by more than four orders of magnitude. XPS analysis of spontaneously formed passive films revealed that the passive film consisted of double oxyhydroxide composed of enriched tetravalent Zr and divalent Mg cations. The enrichment of Zr cations in the passive film is responsible for the enhanced corrosion resistance of Mg-Zr alloys.

Original language	English
Pages (from-to)	2988-2993
Number of pages	6
Journal	Corrosion Science
Volume	53
Issue number	9
DOIs	https://doi.org/10.1016/j.corsci.2011.05.043
Publication status	Published - 2011 Sept
Externally published	Yes

Keywords

A. Magnesium
A. Sputtered films
A. Zirconium
B. XPS
B. XRD
C. Passive film

ASJC Scopus subject areas

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

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10.1016/j.corsci.2011.05.043

Cite this

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title = "Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution",

abstract = "Corrosion behaviour of sputter-deposited Mg-Zr alloys was examined in a borate buffer solution of pH 8.7. XRD measurements showed that the alloys were supersaturated with Zr. The addition of 29. at.% Zr or more was very effective in increasing the corrosion resistance of Mg by more than four orders of magnitude. XPS analysis of spontaneously formed passive films revealed that the passive film consisted of double oxyhydroxide composed of enriched tetravalent Zr and divalent Mg cations. The enrichment of Zr cations in the passive film is responsible for the enhanced corrosion resistance of Mg-Zr alloys.",

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T1 - Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution

AU - El-Moneim, A. A.

AU - Akiyama, E.

AU - Ismail, K. M.

AU - Hashimoto, K.

PY - 2011/9

Y1 - 2011/9

N2 - Corrosion behaviour of sputter-deposited Mg-Zr alloys was examined in a borate buffer solution of pH 8.7. XRD measurements showed that the alloys were supersaturated with Zr. The addition of 29. at.% Zr or more was very effective in increasing the corrosion resistance of Mg by more than four orders of magnitude. XPS analysis of spontaneously formed passive films revealed that the passive film consisted of double oxyhydroxide composed of enriched tetravalent Zr and divalent Mg cations. The enrichment of Zr cations in the passive film is responsible for the enhanced corrosion resistance of Mg-Zr alloys.

AB - Corrosion behaviour of sputter-deposited Mg-Zr alloys was examined in a borate buffer solution of pH 8.7. XRD measurements showed that the alloys were supersaturated with Zr. The addition of 29. at.% Zr or more was very effective in increasing the corrosion resistance of Mg by more than four orders of magnitude. XPS analysis of spontaneously formed passive films revealed that the passive film consisted of double oxyhydroxide composed of enriched tetravalent Zr and divalent Mg cations. The enrichment of Zr cations in the passive film is responsible for the enhanced corrosion resistance of Mg-Zr alloys.

KW - A. Magnesium

KW - A. Sputtered films

KW - A. Zirconium

KW - B. XPS

KW - B. XRD

KW - C. Passive film

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Corrosion behaviour of sputter-deposited Mg-Zr alloys in a borate buffer solution

Abstract

Keywords

ASJC Scopus subject areas

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