prikaz prve stranice dokumenta Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure
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master's thesis
Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure
diplomski rad
2016. urn:nbn:hr:167:858670
Dorbić, Kata
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

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Dorbić, K. (2016). Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:858670

Dorbić, Kata. "Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:167:858670

Dorbić, Kata. "Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:167:858670

Dorbić, K. (2016). 'Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 20 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:858670

Dorbić K. Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2016 [cited 2024 November 20] Available at: https://urn.nsk.hr/urn:nbn:hr:167:858670

K. Dorbić, "Utjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:167:858670

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Metadata
TitleUtjecaj ph otopine natrijevog klorida na korozijsko ponašanje CuAlNi legure : diplomski rad
Title (english)The effect of pH of sodium chloride solution on the corrosion behaviour of CuAlNi alloy : diploma thesis
AuthorKata Dorbić
MentorLadislav Vrsalović (mentor)
Committee memberSandra Svilović (predsjednik povjerenstva)
Committee memberIvana Smoljko (član povjerenstva)
Committee memberLadislav Vrsalović (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2016-10-03, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U radu su prikazani rezultati ispitivanja utjecaja pH 0,9 % NaCl otopine na korozijsko ponašanje legure s prisjeljivosti oblika CuAlNi, nakon toplinske obrade kaljenjem, mjerenjem potencijala otvorenog strujnog kruga, metodom linearne i potenciodinamičke polarizacije. Nakon polarizacijskih mjerenja, površine elektroda ispitane su optičkim mikroskopom, a također je na njima napravljena i SEM/EDS analiza. Rezultati elektrokemijskih ispitivanja su pokazali da sniženje pH otopine dovodi do povećanja vrijednosti gustoće korozijske struje i smanjenja vrijednosti polarizacijskog otpora što ukazuje na intenzivniji korozijski proces na CuAlNi leguru. Rezultati ispitivanja pretražnim elektronskim mikroskopom, nakon potenciodinamičkih polarizacijskih mjerenja, otkrili su površinske produkte korozije u obliku šiljaka. EDS analiza površine pokazala je prisustvo značajnih količina oksida i klorida. Nakon uklanjanja površinskih slojeva, jamice nastale jamičastom korozijom jasno su vidljive pod optičkim mikroskopom.
Abstract (english)
In the present Thesis, the effect of pH of the 0,9 % NaCl solution on the corrosion behavior of CuAlNi shape memory alloy (SMA) after quenching in water were studied by means of open circuit potential (E OC ) measurements, linear and potentiodynamic polarization measurements. After polarization measurements, electrode surfaces were investigated by optical microscope and also with SEM/EDS analysis. The results of electrochemical investigations have shown that decrease in pH leads to increase in corrosion current density and decrease in values of polarization resistance, which indicated the higher corrosion attack on CuAlNi alloy. Scanning electron microscopy investigations, after potentiodynamic polarizations measurements, revealed surface corrosion products in the form of spikes. The EDS analysis has showed that the surface contains the significant amount of oxygen and chloride compounds. After removing the surface layers of corrosion products optical microscopy (OM) examinations showed clearly visible pits on electrode surface.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:858670
ProjectNumber: IP-2014-09-3405
Title: Dizajniranje mikrostrukture i funkcionalnih svojstavalegura s prisjetljivosti oblika na bazi bakra
Acronym: DMFP-CuSMA
Leader: Mirko Gojić
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures
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 on2018-01-24 10:15:24