Evaluation of the structural steel corrosion behaviour, covered with epoxy-type paints, by means of electrochemical DC techniques

3rd International Meeting for Researchers in Materials and Plasma Technology; 1st Symposium on Nanoscience and Nanotechnology

物理学;材料科学

Salas, Y.^1 ; Guerrero, L.^2 ; Martinez, R.^3 ; Chicino, T.^3 ; Devia, C.^3

Universidad Antonio Nariño, Bogotá, Colombia^1

Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia^2

Universidad Antonio Nariño, Tunja, Colombia^3

关键词: Chemical compositions;    Corrosion behaviour;    Dc resistance;    Dynamic tests;    Epoxy coatings;    Structural steels;    Testing time;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/687/1/012106/pdf
DOI  :  10.1088/1742-6596/687/1/012106

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this work we have studied the behaviour of the electrochemical corrosion of structural steel AISI SAE 1007 with epoxy coatings, using epoxy-type paints, through techniques such as DC resistance Polarization and Potentio-dynamic tests. In order to determine potential and corrosion rates of these coatings, have been correlated this results with different used electrolytes. For this, coatings were characterized by thickness measurement and continuity measurements. The coatings showed a slight degradation in the testing time, due to defects present in their structure, and the attack by the electrolyte; however, epoxy coating system tends to react with the electrolytes based on their chemical composition.