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undergraduate thesis
Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. urn:nbn:hr:149:500191
Zubčić, Gabrijel
University of Zagreb
Faculty of Chemical Engineering and Technology

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Zubčić, G. (2018). Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:500191

Zubčić, Gabrijel. "Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:500191

Zubčić, Gabrijel. "Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:500191

Zubčić, G. (2018). 'Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 23 June 2024, https://urn.nsk.hr/urn:nbn:hr:149:500191

Zubčić G. Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2018 [cited 2024 June 23] Available at: https://urn.nsk.hr/urn:nbn:hr:149:500191

G. Zubčić, "Utjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:149:500191

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Metadata
TitleUtjecaj fluorida na korozijsku stabilnost nehrđajućeg čelika
Title (english)The influence of fluorides on corrosion stability of stainless steel
AuthorGabrijel Zubčić
MentorHelena Otmačić Ćurković (mentor)
Committee memberHelena Otmačić Ćurković (predsjednik povjerenstva)
Committee memberSuzana Sopčić (član povjerenstva)
Committee memberLidija Furač (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2018-09-03, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Applied Chemistry
Abstract
Cilj ovog rada je bio ispitati korozijsku stabilnost nehrđajućeg čelika AISI 316L na jamičastu koroziju u otopini koja sadrži vrlo agresivne flouridne ione. Ispitivanja su provedena u umjetnoj slini uz različite koncentracije flouridnih iona (γ(NaF)=0,01 g dm^-3, 0,1 g dm^-3 i 1 g dm^-3) i dvije različite vrijednosti pH (pH= 4 i 6,5). Tehnike koje su korištene za praćenje korozijskog ponašanja nehrđajućeg čelika su ciklička polarizacija i elektrokemijska impedancijska spektroskopija. Iz dobivenih rezultata vidljivo je da nehrđajući čelik AISI 316L pokazuje sklonost prema nastanku jamičaste korozije u umjetnoj slini sa ali i bez dodatka flouridnih iona zbog prisutnosti kloridnih iona u tim otopinama. U otopinama sa nižom pH vrijednošću sklonost prema nastanku jamičaste korozije još je veća i ne dolazi do repasivacije površine nehrđajućeg čelika.
Abstract (english)
The goal of this work was to test corrosion stability of stainles steel AISI 316L towards pitting corrosion in a solution which contains highly agressive flouride ions. Tests were conducted in artifical saliva with different concentrations of flouride ions (γ(NaF)=0,01 g dm^-3, 0,1 g dm^-3 and 1 g dm^-3) and two different pH values (pH= 4 i 6,5). Techniques that were used to monitor corrosion behaviour of stainless steel were cyclic polarization and electrochemical impedance spectroscopy. From the obtained results it is clear that stainless steel AISI 316L demonstrates a tendency toward pitting corrosion in artifical saliva with but also without the addition of flouride ions because of the presence of chloride ions in these solutions. In solutions with lower pH values tendency toward pitting corrosion is even bigger and repassivation of the surface of the stainless steel does not occur.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:500191
Study programmeTitle: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Applied organic chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
RepositoryRepository of Faculty of Chemical Engineering and Technology University of Zagreb
Created on2021-06-23 13:39:11

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