Towards a reliable determination of the intergranular corrosion rate of austenitic stainless steel in oxidizing media

被引：42

作者：

Gwinner, B. ^{[1
]}

Auroy, M. ^{[1
]}

Balbaud-Celerier, F. ^{[2
]}

Fauvet, P. ^{[3
]}

Larabi-Gruet, N. ^{[1
]}

Laghoutaris, P. ^{[1
]}

Robin, R. ^{[1
]}

机构：

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

[2] CEA, DEN, Direct Assainissement & Demantelement Nucl, F-91191 Gif Sur Yvette, France

[3] CEA, Serv Etud Corros & Comportement Mat Leur Environm, DEN, DANS,DPC, F-91191 Gif Sur Yvette, France

来源：

CORROSION SCIENCE | 2016年 / 107卷

关键词：

Stainless steel; Modelling studies; Weight loss; Acid corrosion; Intergranular corrosion; Transpassivity; NITRIC-ACID MEDIA; ELECTROCHEMICAL-BEHAVIOR; GRAIN-BOUNDARIES; SENSITIZATION; SILICON; PHOSPHORUS; RESISTANCE; MECHANISM; 304-STAINLESS-STEEL; SUSCEPTIBILITY;

D O I：

10.1016/j.corsci.2016.02.020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper studies the corrosion behaviour of non-sensitized stainless steels in oxidizing environments, where they can suffer intergranular corrosion. In this case, corrosion rate estimated by gravimetric measurement is not constant as a function of time. This paper proposes a quantitative modelling of the IGC kinetics. Two models were developed: the first one is based on the geometrical simulation of the groove penetration; the second one uses a semi-empirical approach based on the typical shape of the corrosion kinetics. Both models reproduce successfully the experimental corrosion kinetics observed for aAISI310L stainless steel corroded in nitric acid containing oxidizing ions. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：60 / 75

页数：16

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