摘要
综述了用线性极化法和电化学阻抗法测磷化膜孔隙率以定量评价磷化膜耐蚀性能的电化学方法,着重介绍了简便快速检测磷化膜性能的改进型电化学阻抗法,分析了测试溶液对磷化膜孔隙率的影响,展望了电化学测试技术在磷化工业中的应用前景.
An accurate and fast measurement for the performance of phosphate coatings is favorable to adjust phosphating process so that to produce phosphate coatings with good corrosion resistance. The protectiveness of phosphate coatings is related to the porosity of the coatings. The electrochemical techniques for measuring the porosity of phosphate coatings by linear polarization and EIS for evaluating the protectiveness quantitatively were summarized. A modified EIS method for easily and quickly evaluating the performance of phosphate coatings was also introduced. The effect of the solutions used for measuring process on the measared porosity of phosphate coatings was analyzed. Application prospect of electrochemical measurement technique in phosphating industry was presented.
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2006年第6期429-432,共4页
Corrosion Science and Protection Technology
关键词
磷化膜
电化学测试
孔隙率
测试溶液
phosphate coatings
electrochemical measurements
porosity
test solution
