摘要
采用大气腐蚀检测技术(ACM)、零电阻电流技术(ZRA)以及电化学阻抗谱技术(EIS)对2024铝合金与316L不锈钢在薄液膜下的电偶腐蚀行为进行了实时监测。结果表明,电偶腐蚀的过程可分为诱导期、加速期和减速期3个阶段。随着两电极之间距离的减小,电偶腐蚀会快速诱发,且腐蚀速率迅速增加,但电偶腐蚀的加速期变短。
Atmospheric corrosion monitor(ACM),zero resistance amperemeter(ZRA) and electrochemical impedance spectroscopy(EIS) were applied to detect deeply the real-time galvanic corrosion of the couple of 2024 Al-alloy and 316 L stainless steel beneath a thin electrolyte film.The galvanic corrosion process could be divided into three phases:initial phase,acceleration phase and deceleration phase.The smaller the insulative space between the two different materials is,the shorter the initial and acceleration phases are.
作者
刘艳洁
王振尧
王彬彬
曹岩
霍阳
柯伟
LIU Yanjie WANG Zhenyao WANG Binbin CAO Yan HUO Yang KE Wei(Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China Liaoning Hongyanhe Nuclear Power Co., Ltd, Dalian 116319, China)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2017年第3期261-266,共6页
Journal of Chinese Society For Corrosion and Protection
基金
国家自然科学基金(51671197)~~
关键词
实时监测
铝合金
不锈钢
电偶腐蚀
real-time monitoring
Al-alloy
stainless steel
galvanic corrosion