Effect of temperature on the galvanic corrosion of a high alloyed austenitic stainless steel in its welded and non-welded condition in LiBr solutions

被引：50

作者：

Blasco-Tamarit, E. ^{[1
]}

Igual-Munoz, A. ^{[1
]}

Anton, J. Garcia ^{[1
]}

机构：

[1] Univ Politecn Valencia, ETSI Ind, Dept Ingn Quim & Nucl, E-46071 Valencia, Spain

来源：

CORROSION SCIENCE | 2007年 / 49卷 / 12期

关键词：

stainless steels; passivity; welding;

D O I：

10.1016/j.corsci.2007.05.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Galvanic corrosion generated by the coupling between the austenitic stainless steel Alloy 926 (UNS N08926) and the welded Alloy 926 has been studied by means of electrochemical methods. The materials have been tested in highly concentrated LiBr solutions at different temperatures. The effect of Li2CrO4 as corrosion inhibitor has also been evaluated. Galvanic corrosion has been studied under open circuit conditions using a zero-resistance ammeter (ZRA). Results have demonstrated the poor severity of the coupling between the Alloy 926 and the welded metal in the studied conditions. The probability of localized corrosion increased with temperature and concentration, as the galvanic current density and galvanic potential data demonstrated. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：4472 / 4490

页数：19

共 64 条

[41] XPS investigation of surface films on high Cr-Ni ferritic and austenitic stainless steels [J].

Lothongkum, G ;

Chaikittisilp, S ;

Lothongkum, AW .

APPLIED SURFACE SCIENCE, 2003, 218 (1-4) :202-209

[42] ELECTROCHEMICAL NOISE-ANALYSIS OF IRON EXPOSED TO NACL SOLUTIONS OF DIFFERENT CORROSIVITY [J].

MANSFELD, F ;

XIAO, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (08) :2205-2209

[43] Localization index obtained from electrochemical noise analysis [J].

Mansfeld, F ;

Sun, Z .

CORROSION, 1999, 55 (10) :915-918

[44]

MANSFELD F, 1996, ASTM

[45] EFFECT OF COMPOSITION ON CORROSION-RESISTANCE OF HIGH-ALLOY AUSTENITIC STAINLESS-STEEL WELD METALS [J].

MARSHALL, PI ;

GOOCH, TG .

CORROSION, 1993, 49 (06) :514-526

[46] Dependence of the Critical Pitting Temperature on surface roughness [J].

Moayed, MH ;

Laycock, NJ ;

Newman, RC .

CORROSION SCIENCE, 2003, 45 (06) :1203-1216

[47] Corrosion studies of austenitic and duplex stainless steels in aqueous lithium bromide solution at different temperatures [J].

Muñoz, AI ;

Antón, JG ;

Nuévalos, SL ;

Guiñón, JL ;

Herranz, VN .

CORROSION SCIENCE, 2004, 46 (12) :2955-2974

[48] THE DISSOLUTION AND PASSIVATION KINETICS OF STAINLESS ALLOYS CONTAINING MOLYBDENUM .1. COULOMETRIC STUDIES OF FE-CR AND FE-CR-MO ALLOYS [J].

NEWMAN, RC .

CORROSION SCIENCE, 1985, 25 (05) :331-339

[49] 2001 W.R. Whitney Award Lecture: Understanding the corrosion of stainless steel [J].

Newman, RC .

CORROSION, 2001, 57 (12) :1030-1041

[50] AUGER-ELECTRON SPECTROSCOPIC AND ELECTROCHEMICAL ANALYSIS OF EFFECT OF ALLOYING ELEMENTS ON PASSIVATION BEHAVIOR OF STAINLESS-STEELS [J].

OGAWA, H ;

OMATA, H ;

ITOH, I ;

OKADA, H .

CORROSION, 1978, 34 (02) :52-60

← 1 2 3 4 5 6 7 →