Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11007795 | Corrosion Science | 2018 | 26 Pages |
Abstract
Hydrogen permeation kinetics through a Ni-base alloy exposed to simulated pressurized water reactors primary medium at 325â¯Â°C has been investigated. In situ measurements exhibit a strong decrease of H flux during the first 50â¯h of exposure; it has been related to the oxide scale growth at the alloy surface. A kinetic model has been proposed to describe this link. Comparing modelling and experimental results indicates that high H transient activities are generated at the alloy surface during the first hours of oxide scale growth, suggesting that H could play a role in stress corrosion cracking of Ni-base alloys.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Loïc Marchetti, Frantz Martin, Frédéric Datcharry, Jacques Chêne,