Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor

M. P. Brady; M. Fayek; H. M. Meyer; D. N. Leonard; H. H. Elsentriecy; K. A. Unocic; L. M. Anovitz; E. Cakmak; J. R. Keiser; G. L. Song; B. Davis

doi:10.1016/j.scriptamat.2015.04.032

Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor

M. P. Brady, M. Fayek, H. M. Meyer, D. N. Leonard, H. H. Elsentriecy, K. A. Unocic, L. M. Anovitz, E. Cakmak, J. R. Keiser, G. L. Song, B. Davis

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12 Scopus citations

Abstract

The oxidation of pure Mg, Mg-3Al-1Zn (AZ31B), and Mg-1Zn-0.25Zr-<0.5Nd (ZE10A) was studied at 85 °C in humid air using sequential exposures with H₂¹⁸O and D₂¹⁶O for water vapor. Incorporation of ¹⁸O in the hydroxide/oxide films indicated that oxygen from water vapor participated in the reaction. Penetration of hydrogen into the underlying metal was observed, particularly for the Zr- and Nd-containing ZE10A. Isotopic tracer profiles suggested a complex mixed inward/outward film growth mechanism.

Original language	English
Pages (from-to)	38-41
Number of pages	4
Journal	Scripta Materialia
Volume	106
DOIs	https://doi.org/10.1016/j.scriptamat.2015.04.032
State	Published - Sep 1 2015

Funding

The authors thank R. Sharpe, D.W. Coffey, T.M. Lowe, T. Geer and T.L. Jordan for assistance with the experimental work. J. Thomson, S. Dryepondt, and B.A. Pint provided comments for manuscript. This research was sponsored by the U.S. DOE EERE Vehicle Technologies Office . Research supported by ORNL’s Shared Research Equipment (ShaRE) User Program , which is sponsored by the Office of Basic Energy Sciences, U.S. DOE .

Funders	Funder number
Office of Basic Energy Sciences
U.S. DOE
U.S. DOE EERE
Oak Ridge National Laboratory

Keywords

Hydrogen diffusion
Magnesium alloys
Oxidation
Secondary ion mass spectroscopy (SIMS)
Water vapor

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10.1016/j.scriptamat.2015.04.032

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title = "Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor",

abstract = "The oxidation of pure Mg, Mg-3Al-1Zn (AZ31B), and Mg-1Zn-0.25Zr-<0.5Nd (ZE10A) was studied at 85 °C in humid air using sequential exposures with H218O and D216O for water vapor. Incorporation of 18O in the hydroxide/oxide films indicated that oxygen from water vapor participated in the reaction. Penetration of hydrogen into the underlying metal was observed, particularly for the Zr- and Nd-containing ZE10A. Isotopic tracer profiles suggested a complex mixed inward/outward film growth mechanism.",

keywords = "Hydrogen diffusion, Magnesium alloys, Oxidation, Secondary ion mass spectroscopy (SIMS), Water vapor",

author = "Brady, {M. P.} and M. Fayek and Meyer, {H. M.} and Leonard, {D. N.} and Elsentriecy, {H. H.} and Unocic, {K. A.} and Anovitz, {L. M.} and E. Cakmak and Keiser, {J. R.} and Song, {G. L.} and B. Davis",

year = "2015",

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doi = "10.1016/j.scriptamat.2015.04.032",

language = "English",

volume = "106",

pages = "38--41",

journal = "Scripta Materialia",

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TY - JOUR

T1 - Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor

AU - Brady, M. P.

AU - Fayek, M.

AU - Meyer, H. M.

AU - Leonard, D. N.

AU - Elsentriecy, H. H.

AU - Unocic, K. A.

AU - Anovitz, L. M.

AU - Cakmak, E.

AU - Keiser, J. R.

AU - Song, G. L.

AU - Davis, B.

PY - 2015/9/1

Y1 - 2015/9/1

N2 - The oxidation of pure Mg, Mg-3Al-1Zn (AZ31B), and Mg-1Zn-0.25Zr-<0.5Nd (ZE10A) was studied at 85 °C in humid air using sequential exposures with H218O and D216O for water vapor. Incorporation of 18O in the hydroxide/oxide films indicated that oxygen from water vapor participated in the reaction. Penetration of hydrogen into the underlying metal was observed, particularly for the Zr- and Nd-containing ZE10A. Isotopic tracer profiles suggested a complex mixed inward/outward film growth mechanism.

AB - The oxidation of pure Mg, Mg-3Al-1Zn (AZ31B), and Mg-1Zn-0.25Zr-<0.5Nd (ZE10A) was studied at 85 °C in humid air using sequential exposures with H218O and D216O for water vapor. Incorporation of 18O in the hydroxide/oxide films indicated that oxygen from water vapor participated in the reaction. Penetration of hydrogen into the underlying metal was observed, particularly for the Zr- and Nd-containing ZE10A. Isotopic tracer profiles suggested a complex mixed inward/outward film growth mechanism.

KW - Hydrogen diffusion

KW - Magnesium alloys

KW - Oxidation

KW - Secondary ion mass spectroscopy (SIMS)

KW - Water vapor

UR - http://www.scopus.com/inward/record.url?scp=84947047624&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2015.04.032

DO - 10.1016/j.scriptamat.2015.04.032

M3 - Article

AN - SCOPUS:84947047624

SN - 1359-6462

VL - 106

SP - 38

EP - 41

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor

Abstract

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Keywords

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