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master's thesis
Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima
diplomski rad
2020. urn:nbn:hr:167:880717
Perčić, Nika
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Perčić, N. (2020). Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:880717

Perčić, Nika. "Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:167:880717

Perčić, Nika. "Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:167:880717

Perčić, N. (2020). 'Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 10 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:880717

Perčić N. Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2020 [cited 2024 December 10] Available at: https://urn.nsk.hr/urn:nbn:hr:167:880717

N. Perčić, "Ispitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:167:880717

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Metadata
TitleIspitivanje korozijskog ponašanja CuSlMn legure u kloridnim i sulfatnim elektrolitima : diplomski rad
Title (english)Investigation of corrosion behavior of CuAlMn alloy in chloride and sulfate electrolytes : diploma thesis
AuthorNika Perčić
MentorLadislav Vrsalović (mentor)
Committee memberSenka Gudić (predsjednik povjerenstva)
Committee memberMario Nikola Mužek (član povjerenstva)
Committee memberLadislav Vrsalović (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2020-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu je provedeno ispitivanje elektrokemijskog ponašanja CuAlMn legure u 0.5 mol dm -3 NaCl otopini bez i u prisustvu 0.1, 0.3 i 0.5 mol dm -3 Na 2 SO 4 pri T = 20 o C i pH = 7. Primijenjene su elektrokemijske tehnike kao što su mjerenje potencijala otvorenog strujnog kruga, metode linearne i potenciodinamičke polarizacije. Rezultati ispitivanja su pokazali da prisustvo sulfata u otopini klorida dovodi do smanjenja gustoće korozijske struje i do povećanja vrijednosti polarizacijskog otpora. Kod viših anodnih potencijala, dobivene su veće anodne gustoće struje kod mjerenja u prisustvu sulfatnih iona zbog veće topljivosti bakrova sulfata, koji nastaje na površini elektroda. Utjecaj vremena izlaganja legure elektrolitu 0.5 mol dm -3 NaCl i 0.5 mol dm -3 NaCl + 0.5 mol dm -3 Na 2 SO 4 ispitan je mjerenjem metodom linearne polarizacije u vremenskom periodu od 24 sata, pri čemu su vrijednosti polarizacijskog otpora rasle s vremenom i u NaCl i u NaCl+Na 2 SO 4 otopini, s time što su u otopini sa sulfatnim ionima ove vrijednosti bile značajno više. Nakon elektrokemijskih mjerenja, korodirane površine elektroda ispitane su optičkim i elektronskim mikroskopom.
Abstract (english)
The electrochemical behavior of CuAlMn alloy in 0.5 mol dm -3 NaCl solution without and in the presence of 0.1, 0.3 and 0.5 mol dm -3 Na 2 SO 4 at T = 20 o C and pH = 7 was investigated. Conventional electrochemical techniques including open circuit potential measurements, linear and potentiodynamic polarization method were used. After electrochemical measurements, the corroded electrode surfaces were examined with an optical and electron microscope. The results showed that the presence of sulfate in the chloride solution leads to a decrease in corrosion current density values and to an increase in polarization resistance values. At higher anode potentials, higher anodic current densities were obtained in the presence of sulfate ions, due to the higher solubility of copper sulfate, which is formed on the electrode surface. The effect of electrolyte exposure time on 0.5 mol dm -3 NaCl and 0.5 mol dm -3 NaCl + 0.5 mol dm -3 Na 2 SO 4 was examined by measuring with linear polarization method over a period of 24 hours, with the polarization resistance values increasing with time in both NaCl and NaCl + Na 2 SO 4 solution, and these values being significantly higher in the solution with sulfate ions. After electrochemical measurements, the corroded electrode surfaces were examined with an optical and electron microscope.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:880717
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
Course: Materials
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2020-10-13 10:05:51