ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA

Jakovac, Marko

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master's thesis

ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA

Split: University of Split, 2020. urn:nbn:hr:228:366056

Jakovac, Marko

University of Split
University Department of Professional Studies

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APA 6th Edition

Jakovac, M. (2020). ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA (Master's thesis). Split: University of Split. Retrieved from https://urn.nsk.hr/urn:nbn:hr:228:366056

MLA 8th Edition

Jakovac, Marko. "ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA." Master's thesis, University of Split, 2020. https://urn.nsk.hr/urn:nbn:hr:228:366056

Chicago 17th Edition

Harvard

Jakovac, M. (2020). 'ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA', Master's thesis, University of Split, accessed 24 November 2024, https://urn.nsk.hr/urn:nbn:hr:228:366056

Vancouver

Jakovac M. ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA [Master's thesis]. Split: University of Split; 2020 [cited 2024 November 24] Available at: https://urn.nsk.hr/urn:nbn:hr:228:366056

IEEE

M. Jakovac, "ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA", Master's thesis, University of Split, Split, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:228:366056

Cite this item: https://urn.nsk.hr/urn:nbn:hr:228:366056

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Title	ODREĐIVANJE KRITIČNE TEMPERATURE POJAVE JAMIČASTE KOROZIJE KOD ZAVARENIH DUPLEKS-DUPLEKS ČELIKA
Title (english)	DETERMINATION OF CRITICAL TEMPERATURE FOR PITTING CORROSION OCCURRENCE AT WEDDED DUPLEX-DUPLEX STEELS
Author	Marko Jakovac
Mentor	Petar Ljumović (mentor)
Committee member	Igor Gabrić (član povjerenstva)
Committee member	Slaven Šitić (član povjerenstva)
Granter	University of Split (University Department of Professional Studies) Split
Defense date and country	2020-11-13, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Mechanical Engineering
Abstract	Tema ovog rada je određivanje kritične temperature kod koje dolazi do pojave jamičaste korozije kod zavarenih dupleks čelika. Rad se dijeli na dva dijela. U prvom dijelu obrađen je teoretski dio, a drugi dio rada odnosi se na praktični dio. U prvom, teoretskom dijelu rada obrađeni su nehrđajući čelici te podjela istih. Naglasak je stavljen na dupleks čelike. Opisan je njihov kemijski sastav i mehanička obrada. Dio rada posvećen je i korozijskoj postojanosti nehrđajućih, odnosno dupleks čelika. Posebno je obrađena jamičasta korozija te uvjeti njenog nastajanja kao i mjere zaštite od nastajanja iste. Opisano je i zavarivanje dupleks čelika te koji problemi mogu nastati nakon ovog postupka. U eksperimentalnom dijelu rada opisan je proces zavarivanja uzoraka kao i mehanička obrada istih nakon zavarivanja. Analizirana je mikrostruktura uzoraka te austenitno-feritni omjeri. Provedena su i ispitivanja otpornosti na jamičastu koroziju te analiza rezultata.
Abstract (english)	The theme of this paper is determination of the chritical temperature at which pitting corrosion appears in welded duplex steels. The paper consists from two parts. The first part of the paper is theoretical, while the second one refers to the experimental. The first, theoretical part, describes stainless steel sand their classification. Sp ecial emphasis is on duplex steel. Their chemical composition and their mechanical processing are described. Part of the paper is also dedicated to the corrosion resistance of duplex steels. Pitting corrosion and the conditions of its occurrence as well as measures for protection against it have been specially treated. Also, duplex steel welding and problems that may occur after this procedure are described. The experimental part of the paper describes welding process of the samples as well as the their mechanical processing after welding. The microstructure of the samples and austeniticferritic ratios were analyzed. Pitting corrosion resistance tests and analysis of results were also performed.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:228:366056
Study programme	Title: Mechanical Engineering – specialist graduate - professional Study programme type: professional Study level: specialist graduate Academic / professional title: stručni/a specijalist/ specijalistica inženjer/ inženjerka strojarstva (stručni/a specijalist/ specijalistica inženjer/ inženjerka strojarstva)
Type of resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of University Department of Professional Studies
Created on	2020-11-17 07:37:59