Naslov
Effect of pH on corrosion of CuAlMn alloy in 0.9% NaCl solution

Autori
Vrsalović, Ladislav ; Matulić, Marko ; Kožuh, Stjepan ; Ivanić, Ivana ; Gojić, Mirko

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
7th International Conference Mechanical Technologies and Structural Materials 2017 / Jozić, Sonja ; Lela, Branimir - Split : Hrvatsko društvo za strojarske tehnologije, 2017, 159-162

Skup
7th International Conference Mechanical Technologies and Structural Materials 2017

Mjesto i datum
Split, Hrvatska, 21.09.2017. - 22.09.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CuAlMn alloy ; NaCl solution ; corrosion ; polarization ; SEM/EDS

Sažetak
This paper presents the results of corrosion investigation of cast CuAlMn alloy in 0.9 % NaCl solution at 37 o C and pH = 3.4, 5.4 and 7.4. Investigations were performed by open circuit potential measurements, linear and potentiodynamic polarization measurements. After polarization measurements, electrode surfaces were investigated by optical microscope and also with SEM/EDS analysis. Results of polarization measurements have shown that the corrosion current density of CuAlMn alloy was decreased and the values of polarization resistance were increased with the increasing in pH. Optical microscopy surface examination of the CuAlMn alloy, after the polarization investigations, revealed the grain boundaries within the alloy as well as damages on the surface of the electrodes due to the uniform corrosion of the alloy. The EDS analysis determined the chemical composition at certain sites on the surface of the samples.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Metalurgija, Temeljne tehničke znanosti

POVEZANOST RADA