Naslov
The effect of electrolyte flow rate and temperature on corrosion and protection of Al- 2.5Mg alloy by (+)-catechin

Autori
Vrsalović, Ladislav ; Kliškić, Maja ; Radošević, Jagoda ; Gudić, Senka

Izvornik
Journal of applied electrochemistry (0021-891X) 35 (2005), 11; 1059-1065

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

Ključne riječi
Al-2.5Mg alloy ; flow conditions ; inhibition of corrosion ; (+)-catehin

Sažetak
The effects of flow rate and temperature on the corrosion behaviour of the Al-2.5Mg alloy in a 3% NaCl solution and the inhibiting efficiency of (+)-catechin on the corrosion of the same alloy have been examined. Measurements were carried out in a flow-through cell, at different flow rates (v1 = 0.0029 m s-1, v2 = 0.0059 m s-1 and v3 = 0.0118 m s-1) and temperatures (20 °C, 30 °C, 40 °C). Electrochemical parameters for the Al-2.5Mg alloy were determined by polarisation techniques and electrochemical impedance spectroscopy (EIS). Increased flow rate and temperature cause a stronger corrosion attack on the alloy investigated. The addition of (+)-catechin inhibited corrosion at all temperatures and flow rates. The inhibitor efficiency decreased with the increase in flow rate and temperature.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

Napomena
Glavni autor rada: Ladislav Vrsalović

POVEZANOST RADA