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master's thesis
Projektiranje naprave za korozijsko ispitivanje uranjanjem
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2008. urn:nbn:hr:235:688101
Mance, Goran
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

Mance, G. (2008). Projektiranje naprave za korozijsko ispitivanje uranjanjem (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:688101

Mance, Goran. "Projektiranje naprave za korozijsko ispitivanje uranjanjem." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2008. https://urn.nsk.hr/urn:nbn:hr:235:688101

Mance, Goran. "Projektiranje naprave za korozijsko ispitivanje uranjanjem." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2008. https://urn.nsk.hr/urn:nbn:hr:235:688101

Mance, G. (2008). 'Projektiranje naprave za korozijsko ispitivanje uranjanjem', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 18 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:688101

Mance G. Projektiranje naprave za korozijsko ispitivanje uranjanjem [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2008 [cited 2024 November 18] Available at: https://urn.nsk.hr/urn:nbn:hr:235:688101

G. Mance, "Projektiranje naprave za korozijsko ispitivanje uranjanjem", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2008. Available at: https://urn.nsk.hr/urn:nbn:hr:235:688101

Metadata
TitleProjektiranje naprave za korozijsko ispitivanje uranjanjem
AuthorGoran Mance
MentorIvan Juraga (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2008-11-19, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Diplomski rad se sastoji od teorijskog, eksperimentalnog i praktičnog dijela. U teorijskom dijelu opisano je korozijsko djelovanje na materijale te detaljno objašnjene reakcije i mehanizmi elektrokemijske korozije. Posebno su naglašene korozijske reakcije u slanim vodenim otopinama budući da su relevantne za kasnije prikazana ispitivanja uranjanjem. U sklopu priprema za konstruiranje naprave analizirana je norma ASTM G44 koja propisuje način ispitivanja cikličkim uranjanjem. Poštivajući odredbe norme, pristupilo se prvo izradi idejnog, a zatim i konačnog konstrukcijskog rješenja naprave za ispitivanje uranjanjem. U praktičnom djelu rada, naprava je izrađena u jednom primjerku prema dokumentaciji iz konstrukcijskog rješenja. Naprava je postavljena u prostorije Laboratorija za zaštitu materijala Fakulteta Strojarstva i Brodogradnje Sveučilišta u Zagrebu te pripremljena za početak rada. U eksperimentalnom dijelu rada ispitivane su dvije serije uzoraka u različitim trajanjima (5 sati i 90 sati). Prvim ispitivanjem je utvrđena točnost i pouzdanost rada naprave. Drugo ispitivanje je provedeno na šest uzoraka od ugljičnog čelika uronjenih u različite korozivne vodene otopine. Drugo ispitivanje je pokazalo ubrzanost odvijanja korozije pri cikličkom uranjanju te neučinkovitost inhibitora korozije ukoliko su primijenjeni u nedostatnoj količini. Naprava za ispitivanje naizmjeničnim uranjanjem je uspješno konstruirana, izrađena i puštena u rad bez poteškoća, čime je u potpunosti ispunjen zadatak ovog diplomskog rada.
Abstract (english)
This thesis includes theoretical, experimental and practical part. Theoretical part describes corrosion influence on materials and specifies reactions and mechanisms of electrochemical corrosion. Special attention was given to corrosion reactions in salty aqueous solutions as they are relevant to later described immersion testing. As a part of preparations prior to apparatus construction standard ASTM G44 was analyzed. Standard ASTM G44 provided guidelines for alternating immersion testing. Respecting directions of the sandard the draft design was produced first and was later followed by final construction design for the immersion apparatus. Concluding practical thesis part, single apparatus was produced according to final design blueprints. Apparatus was installed and prepared for operation in the Laboratory for material protection on the Faculty of Mechanical Engineering and Naval Architecture in Zagreb University. Experimental part describes immersion testing of two sets of specimens for different duration periods (5 hours and 90 hours). Purpose of the first test was to establish apparatus precision and reliability. Second test was conducted for six carbon steel specimens immersed in various corrosive aqueous solutions. This testing demonstrated accelerated corroding during alternating immersion and inefficiency of corrosion inhibitors if applied inadequately. Alternating immersion testing apparatus was successfully constructed, manufactured and applied which fulfils the goal of this thesis.
Keywords
Languagecroatian
URN:NBNurn:nbn:hr:235:688101
Study programmeTitle: Mechanical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: diplomirani inženjer/inženjerka strojarstva (diplomirani inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2019-05-21 14:05:31