Corrosion inhibition of aluminium alloys by tolyltriazole in chloride solutions

Onal A., Aksut A.

ANTI-CORROSION METHODS AND MATERIALS, cilt.47, sa.6, ss.339-348, 2000 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 47 Sayı: 6
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1108/00035590010354177
  • Dergi Adı: ANTI-CORROSION METHODS AND MATERIALS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.339-348
  • Anahtar Kelimeler: alloys, corrosion inhibitors, aluminium, copper, COPPER CORROSION, BENZOTRIAZOLE SOLUTIONS, ORGANIC-COMPOUNDS, BEHAVIOR, FILMS, CU, NACL, PH
  • Ankara Üniversitesi Adresli: Hayır

Özet

The effect of tolyltriazole (TTA) on the corrosion of Al-Cu, Al-Si-Cu and Al-Cu-Fe alloys in HCl (pH = 0.5) and NaCl (pH = 6 and 11) respectively at 15 degreesC, 25 degreesC and 35 degreesC has been studied by electrochemical methods. Corrosion potentials, corrosion rates, polarization resistances, inhibition efficiencies and activation energies have been determined. The results have shown that the inhibition efficiencies of TTA changed with pH and temperature. TTA has been adsorbed on the alloys to form Cu(I)-TTA film. TTA was more efficient at pH = 0.5 and 6:than at pH = 11. Increasing the temperature from 15 degreesC to 35 degreesC decreased the inhibition effect of TTA.