Naslov
Investigation of novel heterocyclic compounds as inhibitors of Al-3Mg alloy corrosion in hydrochloric acid solutions

Autori
Halambek, Jasna ; Jukić, Marijana ; Berković, Katarina ; Vorkapić-Furač, Jasna

Izvornik
International Journal of Electrochemical Science (1452-3981) 7 (2012), 2; 1580-1601

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
aluminium alloy; pyridine derivative; triazole derivative; polarization; aAcid corrosion

Sažetak
The inhibition of Al-3Mg alloy corrosion in 0.5 M and 1 M HCl by newly prepared compounds namely: 4-(methoxymethyl)-1, 6-dimethyl-2-oxo-1, 2- dihydropyridine-3-carbonitrile (compound A) and 4-amino-3, 5-bis[6-(methoxymethyl)-3, 4-dimethyl-2-oxo-1, 2-dihydropyridine-1-yl]-1, 2, 4-triazole-2(H) (compound B) has been studied by weight loss and potentiodynamic polarization measurements. Tafel curves showed that both compounds investigated are excellent mixed type inhibitor for Al-3Mg alloy in acidic solutions. The adsorption of these compounds obeyed the Langmuir adsorption isotherm. FTIR analysis was used to obtain information on bonding mechanism between the metallic surface and the inhibitors. The triazole derivative (compound B) is better inhibitor than pyridine derivative (compound A)

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA