The effect of hydrogen on the early stages of oxidation of a magnesium alloy

McCarroll IE, Haley D, Thomas S, Meier M, Bagot PA, Moody MP, Birbilis N, Cairney JM (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Corrosion Science Elsevier

Article Number: 108391

DOI: 10.1016/j.corsci.2019.108391

Abstract

The early stage oxidation of germanium-doped magnesium alloys was investigated via atom probe tomography. A catalytic reaction cell attached to a local electrode atom probe allowed controlled exposure of electropolished specimens to oxygen gas. Prior to exposure, some samples were found to be enriched in hydrogen, thought to be introduced during electropolishing. These samples reacted strongly to form sub-surface phases rich in H and O, while samples with less hydrogen did not. These results suggest that hydrogen in the sample plays an important role as a catalyst to oxidation and may affect the hydrogen evolution rate in Mg alloys.

Involved external institutions

University of Sydney (USYD) AU Australia (AU) University of Oxford GB United Kingdom (GB) Monash University AU Australia (AU)

How to cite

APA:

McCarroll, I.E., Haley, D., Thomas, S., Meier, M., Bagot, P.A., Moody, M.P.,... Cairney, J.M. (2019). The effect of hydrogen on the early stages of oxidation of a magnesium alloy. Corrosion Science. https://dx.doi.org/10.1016/j.corsci.2019.108391

MLA:

McCarroll, I. E., et al. "The effect of hydrogen on the early stages of oxidation of a magnesium alloy." Corrosion Science (2019).

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