Investigation of corrosion protection for steel by eco-friendly coating
Joint Authors
al-Sanduq, Ghayth Z.
Ibrahim, Sulafah Ismail
Abd al-Majid, Majid Hamid
Abd Allah, Hibah Anwar
Source
Engineering and Technology Journal
Issue
Vol. 37, Issue 2A (28 Feb. 2019), pp.52-59, 8 p.
Publisher
Publication Date
2019-02-28
Country of Publication
Iraq
No. of Pages
8
Main Subjects
Topics
Abstract EN
The coupling effect of coating and inhibition has been investigated in the present work.
polypyrrole coating with adding coumarin was applied on carbon steel to protect it against corrosion.
electropolymerization process by cyclic voltammeter was carried out in 0.2m oxalic acid electrolyte containing 0.1m pyrrole monomer without and with 0.01m coumarin as an eco-friendly inhibitor.
sem/eds, afm and ftir techniques were used to identify the coating film.
corrosion test using potentiostat was achieved for uncoated and coated specimens and the results indicated that the corrosion potentials became nobler compared with uncoated specimen, this means that the anodic sites were covered by undoped and doped ppy film as illustrated from the deceasing of anodic and cathodic tafel slopes.
protection efficiencies were acceptable and good (71.46% for ppy film and 77.47% for coumarin/ppy film).
the polarization resistance was increased from 0.114 ω.cm2 for uncoated c.s.
to 0.176 and 0.404 ω.cm2 for ppy coated and coumarin/ppy coated c.s.
while the porosity percentage was 0.44% and 4.50 for ppy coated and coumarin/ppy coated c.s.
due to increasing the roughness of coumarin/PPy film.
American Psychological Association (APA)
Abd al-Majid, Majid Hamid& Abd Allah, Hibah Anwar& Ibrahim, Sulafah Ismail& al-Sanduq, Ghayth Z.. 2019. Investigation of corrosion protection for steel by eco-friendly coating. Engineering and Technology Journal،Vol. 37, no. 2A, pp.52-59.
https://search.emarefa.net/detail/BIM-897814
Modern Language Association (MLA)
Abd al-Majid, Majid Hamid…[et al.]. Investigation of corrosion protection for steel by eco-friendly coating. Engineering and Technology Journal Vol. 37, no. 2A (2019), pp.52-59.
https://search.emarefa.net/detail/BIM-897814
American Medical Association (AMA)
Abd al-Majid, Majid Hamid& Abd Allah, Hibah Anwar& Ibrahim, Sulafah Ismail& al-Sanduq, Ghayth Z.. Investigation of corrosion protection for steel by eco-friendly coating. Engineering and Technology Journal. 2019. Vol. 37, no. 2A, pp.52-59.
https://search.emarefa.net/detail/BIM-897814
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 58-59
Record ID
BIM-897814