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master's thesis
Usporedba korozijske postojanosti Corten čelika u različitim medijima
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2021. urn:nbn:hr:235:399937
Cesarec, Paula
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

Cite this document

Cesarec, P. (2021). Usporedba korozijske postojanosti Corten čelika u različitim medijima (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:399937

Cesarec, Paula. "Usporedba korozijske postojanosti Corten čelika u različitim medijima." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2021. https://urn.nsk.hr/urn:nbn:hr:235:399937

Cesarec, Paula. "Usporedba korozijske postojanosti Corten čelika u različitim medijima." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2021. https://urn.nsk.hr/urn:nbn:hr:235:399937

Cesarec, P. (2021). 'Usporedba korozijske postojanosti Corten čelika u različitim medijima', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 17 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:399937

Cesarec P. Usporedba korozijske postojanosti Corten čelika u različitim medijima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2021 [cited 2024 November 17] Available at: https://urn.nsk.hr/urn:nbn:hr:235:399937

P. Cesarec, "Usporedba korozijske postojanosti Corten čelika u različitim medijima", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:235:399937

Metadata
TitleUsporedba korozijske postojanosti Corten čelika u različitim medijima
AuthorPaula Cesarec
MentorVera Rede (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2021-12-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Cilj ovoga rada bio je istražiti kako destilirana voda, kisela kiša i morska voda utječu na korozijsku postojanost Corten čelika. U tu svrhu provedene su vizualna i gravimetrijska analiza te elektrokemijska impedancijska spektroskopija. Zbog formiranja oksidnog sloja na površini, izmjeren je prirast mase i debljine kod svih uzoraka u razdoblju od 6 mjeseci. Kod uzoraka tretiranih destiliranom vodom izmjeren je najmanji prirast mase i debljine, a nešto veći prirast izmjeren je kod uzoraka koji su tretirani kiselom kišom. Najveći prirast mase i debljine izmjeren je kod uzorka tretiranog morskom vodom, ali oksidni sloj na ovom uzorku nije čvrsto prianjao uz površinu. Najmanja oštećenja uslijed korozije uočena su na uzorcima tretiranim destiliranom vodom, a uzorci tretirani morskom vodom najjače su oštećeni korozijom. Elektrokemijskom impedancijskom spektroskopijom utvrđeno je kako razdoblje od 6 mjeseci nije dovoljno za potpuno formiranje stabilnog oksidnog sloja u destiliranoj vodi i kiseloj kiši. Morska voda pokazala se kao vrlo agresivan medij, oksidni slojevi odvojili su se od površine, a površina se nije pasivizirala nego je i dalje korodirala.
Abstract (english)
The goal of this research was to find out how distilled water, acid rain and seawater affect the corrosion resistance of Corten steel. For research purposes, visual and gravimetric analyses were made alongside electrochemical impedance spectroscopy. Because of the formation of an oxide layer on the surface, mass and width increasements were measured on all samples in a 6-month time span. On samples which were treated with distilled water, the mass and width increasements were the lowest, while slight increasements were measured on samples which were treated with acid rain. The major mass and width increasements were measured on the sample which was treated with seawater, but the oxide layer on this sample was not firmly attached to the surface. The least amount of corrosive damage was reported on the samples which were treated with distilled water, yet the samples treated with seawater suffered the most corrosion-inflicted damage. Electrochemical impedance spectroscopy showed that a 6-month time span was not enough for a complete formation of a stable oxide layer in distilled water and acid rain. Seawater turned out to be a very aggressive environment, oxide layers got separated from the surface, and the surface itself did not passivize, thus it continued to corrode.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:399937
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2021-12-05 17:46:54