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master's thesis
Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. urn:nbn:hr:235:789598
Bajs, Marko
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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

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Bajs, M. (2015). Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:789598

Bajs, Marko. "Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:789598

Bajs, Marko. "Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:789598

Bajs, M. (2015). 'Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 17 June 2024, https://urn.nsk.hr/urn:nbn:hr:235:789598

Bajs M. Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2015 [cited 2024 June 17] Available at: https://urn.nsk.hr/urn:nbn:hr:235:789598

M. Bajs, "Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:235:789598

Metadata
TitleAnaliza nastanka toplih pukotina pri zavarivanju raznorodnih čelika
Title (english)Analysis of hot cracking appearance during welding of dissimilar steels
AuthorMarko Bajs
MentorIvica Garašić (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2015-07-16, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Tema ovog diplomskog rada je: „Analiza nastanka toplih pukotina pri zavarivanju raznorodnih čelika“. Sastoji se od dva dijela, teoretskog i praktičnog. U prvom dijelu rada prikazane su opće značajke MAG zavarivanja poput parametara te načina prijenosa metala. Analizirani su nelegirani i visokolegirani čelici, mehanizmi nastanka toplih pukotina te su opisane metode ispitivanja osjetljivosti zavarenih spojeva na pojavu toplih pukotina. Objašnjen je utjecaj zaostalih naprezanja, nečistoća poput sumpora, stupnja miješanja kao i udio ferita u metalu zavara. U eksperimentalnom dijelu rada za kombinaciju osnovnih materijala nelegiranog i visokolegiranog čelika odabrana je prikladna metoda ispitivanja toplih pukotina te su definirani parametri zavarivanja. Prilikom izvođenja eksperimenta obuhvaćeno je više razina unosa topline, načina prijenosa metala u električnom luku i oblikovanje zavarenog spoja. Na temelju analize provedenih ispitivanja definirane su kritične vrijednosti varijabli obzirom na pojavu toplih pukotina.
Abstract (english)
The theme of this diploma thesis is: "The analysis of the occurrence of hot cracks in welding dissimilar steels." It consists of two parts, theoretical and practical. The first part shows the general characteristics of MAG welding parameters as well as methoda of metal transfer. In this thesis unalloyed and high alloyed steels and mechanisms of hot cracks are analyzed and welds sensitivity testing methods to examine the occurrence of hot cracks are described.The influence of residual stresses, impurities such as sulfur, dilution as well as the proportion of ferrite in the weld metal are also explained. In experimental section of this thesis for combination of basic non-alloy and high alloy steel materials appropriate hot cracks test method is selected and welding parameters are defined. Experiment included several levels of heat input, their transmission metal in an electric arc and weld design. Based on the analysis of the tests performed,critical values of the variables for the occurrence of hot cracks are defined.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:789598
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 on2019-05-22 13:42:49