Naslov
Intergranular Corrosion of CuAlNi alloy in 0.5 mol dm-3 H2SO4 Solution

Autori
Vrsalović, Ladislav ; Gudić, Senka ; Terzić, Lana ; Ivanić, Ivana ; Kožuh, Stjepan ; Gojić, Mirko ; Oguzie, Emeka Emanuel

Izvornik
Kemija u industriji : časopis kemičara i tehnologa Hrvatske (0022-9830) 69 (2020), 9-10; 457-464

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

Ključne riječi
shape memory alloy, CuAlNi alloy, corrosion, polarization, SEM/EDS

Sažetak
The corrosion behavior of CuAlNi alloy in 0.5 mol dm-3 H2SO4 solution was investigated by electrochemical methods such as open circuit potential measurement, electrochemical impedance spectroscopy measurements, linear and potentiodynamic polarization. Measurements were performed in deaerated 0.5 mol dm-3 H2SO4 at electrolyte temperatures 20 and 40 oC. After polarization testing, corroded electrode surfaces were ultrasonically cleaned in deionized water and examined by light and scanning electron microscopy, while the elemental composition at individual points of the alloy surface was determined by EDS analysis. The results of the investigations have shown the occurrence of intergranular corrosion on CuAlNi surface whose intensity increases with increasing electrolyte temperature.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Metalurgija

Napomena
Glavni autor: Ladislav Vrsalović

POVEZANOST RADA