Corrosion Performance of the Zn Coatings on AISI 1212 Mild Steel in 0.5 M NaCl Medium: Influence of Thicknesses of Metallic Film

YANARDAĞ T., DANIŞMAN Ş., Maşlak M.

Protection of Metals and Physical Chemistry of Surfaces, cilt.59, sa.2, ss.220-231, 2023 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 59 Sayı: 2
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1134/s207020512206020x
  • Dergi Adı: Protection of Metals and Physical Chemistry of Surfaces
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, Metadex
  • Sayfa Sayıları: ss.220-231
  • Anahtar Kelimeler: anti-corrosion coating, corrosion, linear polarization, mild steel, surface analysis, Zn coated
  • Ankara Üniversitesi Adresli: Evet

Özet

Abstract: The study was carried out to evaluate the electrodeposited performance of electrolytic Zn coated between different thicknesses (Zn-10 μm and Zn-20 μm) and passivation process in protecting AISI 1212 mild steel (MS) from corrosion. Corrosion testing of both methods was performed in 0.5 M NaCl solution by ac impedance measurements (AIM) and Tafel polarization curves (TPC). The inhibition performance was studied by electrochemical and surface analysis techniques (FESEM-EDS, AFM, XRD), which revealed that high strength metallic film forms successfully after passivation applied on the surface in the chloride ions. The results showed that Zn-20 μm coating gave very low inhibition of MS corrosion in chloride solution (~45%), while MS coated with passivation process provided high-efficiency protection (~98%) to the surface. The film resistance (R LPR) obtained from the linear polarization method (LPM) was compatible with AIM method.