Effect of sulphide on the corrosion behaviour of AISI 316L stainless steel and its constituent elements in simulated Kraft digester conditions

被引：51
作者：
Betova, Iva [2 ]
Bojinov, Martin [1 ]
Hyoekyvirta, Outi [3 ]
Saario, Timo [3 ]
机构：
[1] Univ Chem Technol & Met, Dept Phys Chem, BU-1756 Sofia, Bulgaria
[2] Tech Univ Sofia, Dept Chem, Sofia 1000, Bulgaria
[3] VTT Mat & Bldg, Espoo 02044, Finland
来源：
CORROSION SCIENCE | 2010年 / 52卷 / 04期
关键词：
Stainless steel; EIS; Cyclic voltammetry; Passive films; Reactor conditions; POTENTIAL-PH DIAGRAMS; MIXED-CONDUCTION MODEL; ELECTROCHEMICAL-BEHAVIOR; ACID-SOLUTIONS; HYDROGEN-SULFIDE; PASSIVE FILM; SULFUR ANIONS; CARBON-STEEL; OXIDE LAYER; IMPEDANCE;
D O I：
10.1016/j.corsci.2009.12.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electrochemical behaviour of AISI 316L steel and its constituent metals in simulated Kraft digester white liquor at 170 degrees C has been studied by registering slow scan rate voltammograms and impedance spectra at the corrosion potential. Interpretation of the results in terms of two approaches - the Mixed-Conduction Model for passive films and a two-step dissolution reaction - allowed for the estimation of corrosion currents and polarisation resistances as depending on the material and electrolyte medium. Tentative conclusions on the effect of sulphur-containing species in the white liquor on the corrosion mechanism of the studied materials are drawn. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1499 / 1507
页数：9
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