摘要
采用自制装置模拟大气环境中钢表面形成的液膜,通过电化学方法研究碳钢和镀锌钢在不同厚度液膜下的阴极还原过程及腐蚀演化信息,并进一步明确不同强度交流电场对镀锌钢的影响。结果表明:碳钢表面锌层能有效保护钢铁基体,液膜和交流电场的存在会加速碳钢和镀锌钢的腐蚀;液膜厚度越小和交流电场强度越大,镀锌钢的腐蚀速率也越大。
A self-made device was used to simulate the liquid film formed on the surface of steel in an atmospheric environment. Electrochemical methods were used to study the cathodic reduction process and corrosion evolution information of carbon steel and galvanized steel under liquid film with different thicknesses, and further clarify the influence of alternating current(AC) electric field with different strengths on galvanized steel. The results show that the zinc layer on the surface of carbon steel could effectively protect the steel matrix, and the presence of liquid film and AC electric field would accelerate the corrosion of carbon steel and galvanized steel. The smaller the thickness of the liquid film and the greater the intensity of the AC electric field, the greater the corrosion rate of galvanized steel.
作者
赵旭阳
吴芳芳
胡露露
盛叶弘
洪静
曹发和
ZHAO Xuyang;WU Fangfang;HU Lulu;SHENG Yehong;HONG Jing;CAO Fahe(National Quality&Supervision Inspection Center of Electrical Equipment Safety Performance,Zhejiang Huadian Equipment Testing Institute Co.,Ltd.,Hangzhou310015,China;Department of Chemistry,Zhejiang University,Hangzhou 310027,China)
出处
《腐蚀与防护》
CAS
北大核心
2021年第11期20-27,共8页
Corrosion & Protection
基金
国家自然科学基金(51771174)
国网浙江省电力有限公司项目(5211HD180009)。
关键词
大气腐蚀
碳钢
镀锌钢
电化学行为
交流电场
atmospheric corrosion
carbon steel
galvanized steel
electrochemical behavior
alternating electric(AC)field
