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The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy

Ladislav Vrsalović   ORCID icon orcid.org/0000-0001-6111-5475 ; Faculty of Chemistry and Technology, University of Split, Split, Croatia
Ivana Ivanić ; Faculty of Metallurgy, University of Zagreb,Sisak, Croatia
Diana Čudina   ORCID icon orcid.org/0000-0002-7932-3843 ; Faculty of Chemistry and Technology, University of Split, Split, Croatia
Lea Lokas   ORCID icon orcid.org/0000-0002-2377-5074 ; Development-Innovation Center AluTech, Šibenik, Croatia
Stjepan Kožuh ; Faculty of Metallurgy, University of Zagreb, Sisak, Croatia
Mirko Gojić ; Faculty of Metallurgy, University of Zagreb, Sisak, Croatia

Puni tekst: engleski, pdf (842 KB) str. 67-72 preuzimanja: 531* citiraj
APA 6th Edition
Vrsalović, L., Ivanić, I., Čudina, D., Lokas, L., Kožuh, S. i Gojić, M. (2017). The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy. Tehnički glasnik, 11 (3), 67-72. Preuzeto s https://hrcak.srce.hr/186647
MLA 8th Edition
Vrsalović, Ladislav, et al. "The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy." Tehnički glasnik, vol. 11, br. 3, 2017, str. 67-72. https://hrcak.srce.hr/186647. Citirano 16.11.2019.
Chicago 17th Edition
Vrsalović, Ladislav, Ivana Ivanić, Diana Čudina, Lea Lokas, Stjepan Kožuh i Mirko Gojić. "The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy." Tehnički glasnik 11, br. 3 (2017): 67-72. https://hrcak.srce.hr/186647
Harvard
Vrsalović, L., et al. (2017). 'The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy', Tehnički glasnik, 11(3), str. 67-72. Preuzeto s: https://hrcak.srce.hr/186647 (Datum pristupa: 16.11.2019.)
Vancouver
Vrsalović L, Ivanić I, Čudina D, Lokas L, Kožuh S, Gojić M. The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy. Tehnički glasnik [Internet]. 2017 [pristupljeno 16.11.2019.];11(3):67-72. Dostupno na: https://hrcak.srce.hr/186647
IEEE
L. Vrsalović, I. Ivanić, D. Čudina, L. Lokas, S. Kožuh i M. Gojić, "The influence of chloride ion concentration on the corrosion behavior of the CuAlNi alloy", Tehnički glasnik, vol.11, br. 3, str. 67-72, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/186647. [Citirano: 16.11.2019.]

Sažetak
The influence of different chloride ion concentration (0.1 %, 0.5 %, 0.9 % and 1.5 % NaCl solution) on the electrochemical behaviour of the cast CuAlNi alloy was examined with electrochemical techniques (open circuit potential measurements, linear and potentiodynamic polarization measurements and electrochemical impedance spectroscopy (EIS)). After polarization measurements, electrode surfaces were examined with an optical microscope and the SEM/EDS analysis. Polarization measurements revealed that an increase in chloride ion concentration leads to an increase of the corrosion current density values and a decrease of the polarization resistance values, which indicated a higher corrosion attack on the alloy. The examination of alloy surfaces with an optical microscope and the SEM/EDS analysis has shown that there is no indication of pitting corrosion in the 0.1% NaCl solution, but pits were clearly visible on the samples which were examined in the higher chloride concentration solutions. The EDS analysis has shown the existence of copper oxide on the electrode surface and a presence of a small percentage of aluminium in the form of aluminium oxide.

Ključne riječi
corrosion; CuAlNi alloy; electrochemical methods; SEM/EDS analysis; shape memory alloy

Hrčak ID: 186647

URI
https://hrcak.srce.hr/186647

Posjeta: 645 *