Direct observation of hydrogen and deuterium in oxide grain boundaries in corroded Zirconium alloys
Artikel i vetenskaplig tidskrift, 2015

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.

Hydrogen pick-up

Deuterium

Corrosion

Zirconium alloys

Grain boundaries

Atom probe

Författare

Gustav Sundell

Chalmers, Teknisk fysik, Materialens mikrostruktur

Mattias Thuvander

Chalmers, Teknisk fysik, Materialens mikrostruktur

A K Yatim

RWTH Aachen University

H Nordin

Atomic Energy of Canada Limited - Chalk River Lab

Hans-Olof Andrén

Chalmers, Teknisk fysik, Materialens mikrostruktur

Corrosion Science

0010-938X (ISSN)

Vol. 90 1-4

Styrkeområden

Energi

Materialvetenskap

Ämneskategorier

Annan materialteknik

Korrosionsteknik

DOI

10.1016/j.corsci.2014.10.016

Mer information

Senast uppdaterat

2018-03-27