CHRONOAMPEROMETRIC STUDY OF MILD-STEEL PITTING IN SODIUM SULFIDE AQUEOUS-SOLUTION

被引：4
|
作者：
OTERO, TF
ACHUCARRO, C
机构：
[1] Facultad de Quimica, San Sebastian
来源：
CORROSION | 1994年 / 50卷 / 08期
关键词：
AQUEOUS SOLUTIONS; CHRONOAMPEROMETRY; MILD STEEL; OPTICAL MICROSCOPY; PIT NUCLEATION; PITTING; POLARIZATION; POTASSIUM HYDROXIDE; POTENTIOSTATIC; SODIUM SULFIDE; SULFIDES;
D O I：
10.5006/1.3293528
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Mild steel samples were studied by chronoamperometry in sodium sulfide (NaS) aqueous solution. Pit nucleation and growth also were monitored by optical microscopy. The influence of variables such as temperature, polarization potential, surface roughness, the presence of electrochemically generated oxide layers, and the simultaneous presence of potassium hydroxide (KOH) was studied. The influence of each parameter on pit shape and growth was reviewed. Different reactions and competitive processes were proposed based on the experimental results.
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页码：576 / 583
页数：8
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