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*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    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.

    Original languageEnglish
    Article number108391
    JournalCorrosion Science
    Volume165
    DOIs
    Publication statusPublished - 1 Apr 2020

    Fingerprint

    Dive into the research topics of 'The effect of hydrogen on the early stages of oxidation of a magnesium alloy'. Together they form a unique fingerprint.

    Cite this