Investigation of corrosion behavior of silver coated brass in acidic solutions


ZOR S. , Unal H. I. , Gokergil H. M.

PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES, cilt.47, ss.813-820, 2011 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 47 Konu: 6
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1134/s2070205111060207
  • Dergi Adı: PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
  • Sayfa Sayısı: ss.813-820

Özet

The corrosion behavior of uncoated brass and electrolytically silver coated brass in cyanide solutions such as 0.1 M HCl, 0.1 M H(2)SO(4) and 0.1 M H(3)PO(4) was investigated by Tafel polarization curves and cyclic voltammetry curves at 1., 24., 48., 72., 96. and 168. hours. The coating efficiency was calculated by current density of corrosion determined from Tafel polarization curves. Surface analysis of coated brass immersed into acidic solution by 168 hours was done. It is concluded that silver coating is very effective to protect the corrosion of brass for a long time.