Hydrogen absorption associated with the corrosion mechanism of 316L stainless steels in primary medium of Pressurized Water Reactor (PWR)

被引：30

作者：

Dumerval, Marie ^{[1
,5
]}

Perrin, Stephane ^{[1
]}

Marchetti, Loic ^{[2
]}

Tabarant, Michel ^{[3
]}

Jomard, Francois ^{[4
]}

Wouters, Yves ^{[5
]}

机构：

[1] CEA, DEN, DPC, Lab Etud Corros Aqueuse,SCCME, F-91191 Gif Sur Yvette, France

[2] CEA, DEN, DTCD,SECM, Lab Etud Comportement Long Terme Mat Conditioninn, F-30207 Bagnols Sur Ceze, France

[3] CEA, DEN, DPC, Lab Ingn Surfaces & Lasers,SEARS, F-91191 Gif Sur Yvette, France

[4] CNRS, Grp Etud MAtiere Condensee, F-78035 Versailles, France

[5] Univ Grenoble, SIMaP, F-38402 St Martin Dheres, France

来源：

CORROSION SCIENCE | 2014年 / 85卷

关键词：

Stainless steel; SIMS; Oxidation; Reactor conditions; Hydrogen absorption; OXIDE-FILM; OXIDATION EXPERIMENTS; DEUTERIUM; CRACKING; KINETICS; ALLOYS;

D O I：

10.1016/j.corsci.2014.04.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Samples of 316L were exposed at 325 degrees C to PWR primary water labelled with deuterium and oxygen 18. The SIMS and GD-OES analysis has revealed the presence of deuterium in the internal oxide layer and in the underlying alloy. Two-stage corrosion experiments have shown that the oxygen and hydrogen transport in the oxide layer is not coupled and that the short-circuit diffusion coefficient of O-18 in the oxide scale: D-sc = (9 +/- 1).10(-17) cm(2) s(-1). These results are used to propose a mechanism describing the anionic growth of the protective oxide layer and the concomitant adsorption of hydrogen in the alloy. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：251 / 257

页数：7

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