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Title:Mehanska karakterizacija in metalografska analiza lotnih spojev za toplotne izmenjevalce : magistrsko delo
Authors:ID Rihter, Erik (Author)
ID Glodež, Srečko (Mentor) More about this mentor... New window
ID Bončina, Tonica (Comentor)
Files:.pdf MAG_Rihter_Erik_2025.pdf (6,19 MB)
MD5: 5E148DE692C9ED0EE4159E556CACF327
 
Language:Slovenian
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:V magistrskem delu smo ugotovili lastnosti toplotnih izmenjevalcev iz nerjavnega jekla in bakrene folije s pomočjo mehanskih preizkusov, metalografske in fraktografske analize ter meritvami mikrotrdote. Za rezultate dinamičnih testov smo izračunali koeficient in eksponent trdnosti pri utrujanju. Metalografsko analizo smo naredili na vzorcu osnovnega materiala, nepretrganega spoja in pretrganih preizkušancev mehanskih preizkusov. Na vzorcih dinamičnih preizkušancev smo izvedli tudi fraktografsko analizo. Meritve mikrotrdote HV0,1 smo opravili na nerjavnem jeklu, v okolici spoja in na utrujanih vzorcih. Z mikrostrukturnimi analizami in meritvami mikrotrdote smo ugotovili, da pride do utrjevanja materiala glede na amplitudo obremenjevanja.
Keywords:toplotni izmenjevalec, lotni spoj, eksperimentalne raziskave, metalografska analiza, fraktografska analiza, mikrotrdota
Place of publishing:Maribor
Place of performance:Maribor
Publisher:[E. Rihter]
Year of publishing:2024
Number of pages:1 spletni vir (1 datoteka PDF (XIV, 74 f.))
PID:20.500.12556/DKUM-91433 New window
UDC:620.18:621.791.052(043.2)
COBISS.SI-ID:226893571 New window
Publication date in DKUM:11.02.2025
Views:154
Downloads:31
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:21.12.2024

Secondary language

Language:English
Title:Mechanical characterisation and metallographic analysis of brazed joints for heat exchanger
Abstract:In the master's thesis, we investigated the properties of heat exchangers made of stainless steel and copper foil using mechanical tests, metallographic and fractographic analyses, as well as microhardness measurements. For the results of dynamic tests, we calculated the strength coefficient and strength exponent of fatigue. Metallographic analysis was conducted on samples of the base material, unbroken joints, and fractured specimens from mechanical tests. Fractographic analysis was also performed on the fractured test specimens of dynamic testing. Microhardness measurements (HV0.1) were carried out on stainless steel, in the vicinity of the joint, and on fatigued specimens. Microstructural analyses and microhardness measurements revealed that material hardening occurs depending of the load amplitude.
Keywords:heat exchangers, brazed joint, experimental studies, metallographic analysis, fractographic analysis, microhardness


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