Direct observation of hydrogen and deuterium in oxide grain boundaries in corroded Zirconium alloys

G. Sundell; M. Thuvander; A. K. Yatim; H. Nordin; H. O. Andrén

doi:10.1016/j.corsci.2014.10.016

Direct observation of hydrogen and deuterium in oxide grain boundaries in corroded Zirconium alloys

G. Sundell
, M. Thuvander
, A. K. Yatim
, H. Nordin
, H. O. Andrén

Research output: Contribution to journal › Short survey › peer-review

57 Scopus citations

Abstract

Atom probe tomography has been used to the study the distribution of hydrogen and deuterium in the oxide scale of two common zirconium alloys after autoclave testing in H₂O and D₂O, respectively. Comparison between hydrogen and deuterium in the mass spectra allows for separation of hydrogen as a corrosion product from adsorbed H₂ gas from the vacuum chamber. Enrichment of hydrogen and deuterium, as OH⁺ and OD⁺, was observed in grain boundaries. The grain boundaries were identified through segregation of iron. This lends experimental support to existing theories for the mechanism of hydrogen pick-up in zirconium alloys.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Corrosion Science
Volume	90
DOIs	https://doi.org/10.1016/j.corsci.2014.10.016
State	Published - Jan 1 2015
Externally published	Yes

Funding

The authors would like to thank the MUZIC-2 consortium for helpful discussions. Westinghouse Electric Sweden AB , Sandvik Materials Technology AB , Vattenfall AB , the Swedish Research Council and the Deutsch Forschungsgesellschaft (funding within SFB 917 ) are gratefully acknowledged for their financial support.

Keywords

A. Atom probe
B. Hydrogen pick-up
C. Zirconium alloys
D. Corrosion
E. Grain boundaries
F. Deuterium

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10.1016/j.corsci.2014.10.016

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title = "Direct observation of hydrogen and deuterium in oxide grain boundaries in corroded Zirconium alloys",

abstract = "Atom probe tomography has been used to the study the distribution of hydrogen and deuterium in the oxide scale of two common zirconium alloys after autoclave testing in H2O and D2O, respectively. Comparison between hydrogen and deuterium in the mass spectra allows for separation of hydrogen as a corrosion product from adsorbed H2 gas from the vacuum chamber. Enrichment of hydrogen and deuterium, as OH+ and OD+, was observed in grain boundaries. The grain boundaries were identified through segregation of iron. This lends experimental support to existing theories for the mechanism of hydrogen pick-up in zirconium alloys.",

keywords = "A. Atom probe, B. Hydrogen pick-up, C. Zirconium alloys, D. Corrosion, E. Grain boundaries, F. Deuterium",

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doi = "10.1016/j.corsci.2014.10.016",

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T1 - Direct observation of hydrogen and deuterium in oxide grain boundaries in corroded Zirconium alloys

AU - Sundell, G.

AU - Thuvander, M.

AU - Yatim, A. K.

AU - Nordin, H.

AU - Andrén, H. O.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Atom probe tomography has been used to the study the distribution of hydrogen and deuterium in the oxide scale of two common zirconium alloys after autoclave testing in H2O and D2O, respectively. Comparison between hydrogen and deuterium in the mass spectra allows for separation of hydrogen as a corrosion product from adsorbed H2 gas from the vacuum chamber. Enrichment of hydrogen and deuterium, as OH+ and OD+, was observed in grain boundaries. The grain boundaries were identified through segregation of iron. This lends experimental support to existing theories for the mechanism of hydrogen pick-up in zirconium alloys.

AB - Atom probe tomography has been used to the study the distribution of hydrogen and deuterium in the oxide scale of two common zirconium alloys after autoclave testing in H2O and D2O, respectively. Comparison between hydrogen and deuterium in the mass spectra allows for separation of hydrogen as a corrosion product from adsorbed H2 gas from the vacuum chamber. Enrichment of hydrogen and deuterium, as OH+ and OD+, was observed in grain boundaries. The grain boundaries were identified through segregation of iron. This lends experimental support to existing theories for the mechanism of hydrogen pick-up in zirconium alloys.

KW - A. Atom probe

KW - B. Hydrogen pick-up

KW - C. Zirconium alloys

KW - D. Corrosion

KW - E. Grain boundaries

KW - F. Deuterium

UR - https://www.scopus.com/pages/publications/84913580878

U2 - 10.1016/j.corsci.2014.10.016

DO - 10.1016/j.corsci.2014.10.016

M3 - Short survey

AN - SCOPUS:84913580878

SN - 0010-938X

VL - 90

SP - 1

EP - 4

JO - Corrosion Science

JF - Corrosion Science

ER -

Direct observation of hydrogen and deuterium in oxide grain boundaries in corroded Zirconium alloys

Abstract

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Keywords

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