Electrochemical Corrosion of Stainless Steel in Thiosulfate Solutions Relevant to Gold Leaching

被引：11
|
作者：
Choudhary, Lokesh [1 ]
Wang, Wei [1 ]
Alfantazi, Akram [1 ,2 ]
机构：
[1] Univ British Columbia, Dept Mat Engn, Vancouver, BC V6T 1Z4, Canada
[2] Petr Inst, Dept Chem Engn, Abu Dhabi, U Arab Emirates
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2016年 / 47A卷 / 01期
基金：
加拿大自然科学与工程研究理事会;
关键词：
TRANSPASSIVE DISSOLUTION MECHANISM; CHLORIDE SOLUTIONS; PITTING CORROSION; PASSIVE FILMS; IMPEDANCE SPECTROSCOPY; AMMONIUM THIOSULFATE; SULFATE-SOLUTIONS; CARBON-STEEL; ALLOY; 800; BEHAVIOR;
D O I：
10.1007/s11661-015-3202-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This study aims to characterize the electrochemical corrosion behavior of stainless steel in the ammoniacal thiosulfate gold leaching solutions. Electrochemical corrosion response was investigated using potentiodynamic polarization and electrochemical impedance spectroscopy, while the semi-conductive properties and the chemical composition of the surface film were characterized using Mott-Schottky analysis and X-ray photoelectron spectroscopy, respectively. The morphology of the corroded specimens was analyzed using scanning electron microscopy. The stainless steel 316L showed no signs of pitting in the ammoniacal thiosulfate solutions.
引用
收藏
页码：314 / 325
页数：12
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