Kinetics of hydrogen permeation through a Ni-base alloy membrane exposed to primary medium of pressurized water reactors

被引：5

作者：

Marchetti, Loic ^{[1
,2
]}

Martin, Frantz ^{[2
]}

Datcharry, Frederic ^{[2
]}

Chene, Jacques ^{[3
]}

机构：

[1] CEA, Lab Etud Comportement Long Terme Mat Conditionnem, DEN, DE2D,SEVT, Bagnols Sur Ceze, France

[2] Univ Paris Saclay, CEA, Den Serv Corros & Comportement Mat Leur Environm, F-91191 Gif Sur Yvette, France

[3] CEA, Lab Etud Corros Aqueuse, Equipe Hydrogine Mat Struct, CNRS,UMR 8587,DEN,DPC,SCCME, F-91191 Gif Sur Yvette, France

来源：

CORROSION SCIENCE | 2018年 / 144卷

关键词：

Nickel alloy; Hydrogen permeation; Modelling studies; Reactor conditions; Oxidation; Stress corrosion; STRESS-CORROSION CRACKING; STAINLESS-STEELS; NICKEL-ALLOYS; OXIDE-FILMS; TEMPERATURE; MECHANISM; STRAIN; DIFFUSION; OXIDATION; RUPTURE;

D O I：

10.1016/j.corsci.2018.05.027

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hydrogen permeation kinetics through a Ni-base alloy exposed to simulated pressurized water reactors primary medium at 325 degrees C has been investigated. In situ measurements exhibit a strong decrease of H flux during the first 50 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.

引用

页码：1 / 12

页数：12

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