Journal
CORROSION SCIENCE
Volume 112, Issue -, Pages 289-307Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2016.07.030
Keywords
Steel; Zinc; EIS; SEM; X-ray diffraction; Pitting corrosion
Funding
- research project SELF-HEALING NANOMATERIALS FOR PROTECTION OF METAL ALLOYS SHELL for the National Action ARISTEIA II of the Operational Program Education and Lifelong Learning [3456]
- European Union - European Social Fund (ESF)
- National Funds through the Operational Program Education and Lifelong Learning (ELL)
- (MICRONANO) Research Grant, - Romanian Executive Agency for Higher Education, Research, Development and Innovation Funding (UEFISCDI) [PN-II-RU-TE-2014-4-1803]
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This study investigates the morphology, composition and corrosion resistance of hot dip galvanized (HDG) steel panels treated by immersion in NaCl solution in the presence of six protective compounds: 8-hydroxyquinoline, 2-mercaptobenzothiazole, 5-amino-1,3,4-thiadiazole-2-thiol, calcium phosphate, cerium nitrate and sodium molybdate. The results reveal that upon corrosion new compounds are formed onto the exposed areas of the treated panels. The presence of these compounds on the surface of the HDG steel panels hinders the corrosion process by reducing the rate of the anodic and cathodic reactions. The conducted experiments provide new insights on the corrosion mechanisms of HDG steel. (C) 2016 Elsevier Ltd. All rights reserved.
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