Formation of an incombustible oxide film on a molten Mg-Al-Ca alloy

Inoue, Shin-ichi I, Yamasaki, Michiaki and Kawamura, Yoshihito (2017) Formation of an incombustible oxide film on a molten Mg-Al-Ca alloy. Corrosion Science, 122 118-122. doi:10.1016/j.corsci.2017.01.026

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Author Inoue, Shin-ichi I
Yamasaki, Michiaki
Kawamura, Yoshihito
Title Formation of an incombustible oxide film on a molten Mg-Al-Ca alloy
Journal name Corrosion Science   Check publisher's open access policy
ISSN 0010-938X
Publication date 2017-08-01
Sub-type Article (original research)
DOI 10.1016/j.corsci.2017.01.026
Open Access Status File (Author Post-print)
Volume 122
Start page 118
End page 122
Total pages 5
Place of publication Kidlington, Oxford, United Kingdom
Publisher Elsevier Ltd
Language eng
Abstract A nonflammable Mg-10Al-5Ca (at.%) alloy that can be melted in air without a cover gas or flux is developed. The alloy immediately forms a protective oxide film consisting of three layers, a fine CaO outer layer, a fine MgO intermediate layer, and a coarse MgO innermost layer. The anionic volume ratio of the CaO/MgO interface is 1.48. This interface ratio is sufficiently large to suggest the generation of a strong compressive force in the CaO layer. The dense, uniform fine CaO layer may act as a protective layer preventing the diffusion of oxygen.
Keyword A. Calcium
A. Magnesium
C. High-temperature corrosion
C. Oxidation
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
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Created: Fri, 02 Jun 2017, 10:18:55 EST by Anthony Yeates on behalf of Learning and Research Services (UQ Library)