Effect of chloride and sulfate ions in simulated boiler water on pitting corrosion behavior of 13Cr steel

被引：65
|
作者：
Niu, Li-Bin [1 ]
Nakada, Kensuke [2 ]
机构：
[1] Shinshu Univ, Acad Assembly, Inst Engn, Nagano 3808553, Japan
[2] Shinshu Univ, Matsumoto, Nagano, Japan
来源：
CORROSION SCIENCE | 2015年 / 96卷
关键词：
Stainless steel; Polarization; SEM; Pitting corrosion; STAINLESS-STEEL; POWER-PLANTS; GROWTH; PITS; FOILS;
D O I：
10.1016/j.corsci.2015.04.005
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The pitting corrosion behavior of 13Cr steel was investigated in simulated boiler waters containing chloride ions (Cl-) and sulfate ions (SO42-) using potentiodynamic and potentiostatic polarization tests in addition to pit morphology analysis. The presence of 100 ppm cl(-) in the water caused pitting corrosion of the steel. Pit initiation was inhibited by the addition of 50 ppm or 100 ppm SO42- into the water containing 100 ppm Cl-. Pit growth was also suppressed by the presence of 50 ppm SO42- in the water with 100 ppm Cl-; however, it was conversely promoted in the presence of 100 ppm SO42-. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：171 / 177
页数：7
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