Investigation of the cut-edge corrosion of organically-coated galvanized steel after accelerated atmospheric corrosion test

Yilchz R., DEHRİ İ.

ARABIAN JOURNAL OF CHEMISTRY, vol.8, no.6, pp.821-827, 2015 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 8 Issue: 6
  • Publication Date: 2015
  • Doi Number: 10.1016/j.arabjc.2013.04.023
  • Journal Name: ARABIAN JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.821-827
  • Çukurova University Affiliated: Yes

Abstract

The cut edge corrosion of organically coated (epoxy, polyurethane and polyester) galvanized steel was investigated using electrochemical impedance spectroscopy (EIS). Measurements were performed on specimens that had been tested in an accelerated atmospheric corrosion test. The samples were subjected to 10 s fogging and 1 h awaiting cycles in an exposure cabinet (120 and 180 days) with artificial acid rain solution. According to the investigation, the coatings were damaged from the cut edge into the sheet, this distance was about 0.8 cm. These defects were more pronounced at after 180 days in proportion to after 120 days. (C) 2013 Production and hosting by Elsevier B.V, on behalf of King Saud University.