journal article·2020-04Open access

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

I.E. McCarroll, D. Haley, S. Thomas, M.S. Meier, P.A.J. Bagot, M.P. Moody, N. Birbilis, J.M. Cairney

Corrosion Science· Volume 165

Abstract

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.
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Research context

OpenAlex topics: Magnesium Alloys: Properties and Applications · Corrosion Behavior and Inhibition · Aluminum Alloy Microstructure Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

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