Formability of organic coatings - an electrochemical approach

被引：17

作者：

Bastos, AC

Ostwald, C

Engl, L

Grundmeier, G

Simoes, AM

机构：

[1] Univ Tecn Lisboa, DEQ, Inst Super Tecn, P-1049001 Lisbon, Portugal

[2] DOC Dortmunder Oberflachen Centrum, D-44145 Dortmund, Germany

[3] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

来源：

ELECTROCHIMICA ACTA | 2004年 / 49卷 / 22-23期

关键词：

coil coating; forming; corrosion; EIS; SEM;

D O I：

10.1016/j.electacta.2004.03.044

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Coil-coated samples of electrogalvanised steel were submitted to uniaxial, biaxial and plane strain of various magnitudes and tested by electrochemical impedance spectroscopy (EIS). A good correlation was encountered between the coating resistance and the equivalent plastic strain. Microscopic inspection of the coatings suggests that the decrease in the coating resistance is a consequence of defects originated by cracks on the phosphate and by loss of adhesion at the polymer/pigment interface. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3947 / 3955

页数：9

共 9 条

[1] Effect of uniaxial strain on the protective properties of coil-coatings [J].