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

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

doi:10.1016/j.scriptamat.2015.04.032

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

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Abstract

We studied the pure oxidation of Mg, Mg–3Al–1Zn (AZ31B), and Mg–1Zn–0.25Zr–<0.5Nd (ZE10A) 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. Moreover, 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.

Authors:

Brady, M. P. ^[1]; Fayek, M. ^[2]; Meyer, H. M. ^[1]; Leonard, D. N. ^[1]; Elsentriecy, H. H. ^[3]; Unocic, K. A. ^[1]; Anovitz, L. M. ^[1]; Cakmak, E. ^[1]; Keiser, J. R. ^[1]; Song, G. L. ^[1]; Davis, B. ^[4]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Univ. of Manitoba, Winnipeg (Canada)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Central Metallurgical Research and Development Inst., Cairo (Egypt)
Magnesium Elektron North America, Madison, IL (United States)

Publication Date:: Fri May 15 00:00:00 EDT 2015

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)

OSTI Identifier:: 1185942

Alternate Identifier(s):: OSTI ID: 1251489

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Scripta Materialia

Additional Journal Information:: Journal Volume: 106; Journal Issue: C; Journal ID: ISSN 1359-6462

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Magnesium alloys; Oxidation; Hydrogen diffusion; Secondary ion mass spectroscopy (SIMS); Water vapor

Citation Formats


                    Brady, M. P., Fayek, M., Meyer, H. M., Leonard, D. N., Elsentriecy, H. H., Unocic, K. A., Anovitz, L. M., Cakmak, E., Keiser, J. R., Song, G. L., and Davis, B. Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor.  United States: N. p., 2015. 
Web.  doi:10.1016/j.scriptamat.2015.04.032.

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                    Brady, M. P., Fayek, M., Meyer, H. M., Leonard, D. N., Elsentriecy, H. H., Unocic, K. A., Anovitz, L. M., Cakmak, E., Keiser, J. R., Song, G. L., & Davis, B. Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor.  United States.  https://doi.org/10.1016/j.scriptamat.2015.04.032

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                    Brady, M. P., Fayek, M., Meyer, H. M., Leonard, D. N., Elsentriecy, H. H., Unocic, K. A., Anovitz, L. M., Cakmak, E., Keiser, J. R., Song, G. L., and Davis, B. Fri .  
"Tracer study of oxygen and hydrogen uptake by Mg alloys in air with water vapor".  United States.  https://doi.org/10.1016/j.scriptamat.2015.04.032.  https://www.osti.gov/servlets/purl/1185942.

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@article{osti_1185942,

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

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

  abstractNote = {We studied the pure oxidation of Mg, Mg–3Al–1Zn (AZ31B), and Mg–1Zn–0.25Zr–<0.5Nd (ZE10A) 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. Moreover, 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.},

  doi          = {10.1016/j.scriptamat.2015.04.032},

  journal      = {Scripta Materialia},

  number       = C,

  volume       = 106,

  place        = {United States},

  year         = {Fri May 15 00:00:00 EDT 2015},

  month        = {Fri May 15 00:00:00 EDT 2015}

}

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