The effect of phase compositions on the pitting corrosion of 25 Cr duplex stainless steel in chloride solutions

被引:216
作者
GarfiasMesias, LF
Sykes, JM
Tuck, CDS
机构
[1] LANGLEY ALLOYS LTD,MAIDENHEAD SL6 7BU,BERKS,ENGLAND
[2] UNIV OXFORD,DEPT MAT,OXFORD OX1 3PH,ENGLAND
[3] CINVESTAV IPN,MERIDA 97310,MEXICO
关键词
alloy; stainless steel; pitting corrosion;
D O I
10.1016/0010-938X(96)00022-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of annealing temperature on pitting resistance of 25% Cr duplex UNS S32550 was investigated. CPT and pitting potential were determined for this alloy after annealing at 1020, 1060, 1100 and 1140 degrees C. The higher values of CPT and pitting potential were found after annealing at the lower temperatures. Fitting was always observed preferentially in the ferrite phase. The results can be partially explained by the changes in chemical composition of ferrite and austenite phases. Copyright (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:1319 / 1330
页数:12
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