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Title:Vpliv nezadostne in prevelike toplotne obdelave TVP na udarno žilavost na jekla za povišane temperature
Authors:ID Fekonja, Luka (Author)
ID Vuherer, Tomaž (Mentor) More about this mentor... New window
ID Zupanič, Franc (Comentor)
Files:.pdf UNI_Fekonja_Luka_2014.pdf (4,92 MB)
MD5: 2B37146166E52CBD3FF483C000CF1D7F
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FS - Faculty of Mechanical Engineering
Abstract:Namen diplomske naloge je bil določiti ustrezno temperaturo in čas toplotne obdelave TVP na jekla za povišane temperature po varjenju, da dosežemo dobro žilavost ob ustrezni trdoti. Osredotočil sem se predvsem na eksperimentalni del, pri katerem je bil cilj izvesti simulacijo varjenja na preizkušancih, jih nato toplotno obdelati pri različnih temperaturah in časih ter izmeriti žilavost na instrumentiranem Charpy kladivu. Udarno žilavost merimo z metodo Charpy, ki določa potrebno delo za prelom preizkušanca. Rezultati so pokazali, da toplotna obdelava pri 740 °C in 800 °C povzroča nezadostno in preveliko žilavosti in ni najbolj primerna. Iz tega lahko sklepamo, da imajo zelo majhne spremembe toplotne obdelave velik vpliv na mehanske lastnosti materiala.
Keywords:jeklo za povišane temperature, var, TVP, simulacija varjenja, dilatacija, toplotna obdelava, udarna žilavost, Charpy preizkus
Place of publishing:Maribor
Publisher:[L. Fekonja]
Year of publishing:2014
PID:20.500.12556/DKUM-45711 New window
UDC:620.178.2:669.14.018.62(043.2)
COBISS.SI-ID:18474518 New window
NUK URN:URN:SI:UM:DK:B1JRN4SF
Publication date in DKUM:11.12.2014
Views:1973
Downloads:265
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FS
:
FEKONJA, Luka, 2014, Vpliv nezadostne in prevelike toplotne obdelave TVP na udarno žilavost na jekla za povišane temperature [online]. Bachelor’s thesis. Maribor : L. Fekonja. [Accessed 21 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=45711
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Secondary language

Language:English
Title:Influence of unsufficient and over sufficient post weld heat treatment on HAZ impact toughness of steel for elevated temperatures
Abstract:The aim of this diploma work is to determinate proper temperature and time post weld heat treatment of HAZ on creep resistant steels after welding. With this procedure we get sufficient impact tougness and hardness. I focused on my experimental work, the weld simulation of samples and post weld heat treatment by different temperatures and time intervales with measure of impact toughness by instrumented charpy pendulum. The impact toughness is measured by Charpy metode, which determinates minimal imput of forze for braking the sample. The results showed, the temperature at 740 °C and 800 °C means unsufficient and oversufficient impact toughness and it is not appropriate. That leads us to conclusion that very small changes in heat treatmend have great influence on mechanical propertis of material.
Keywords:creep resistant steel, welded joint, HAZ, weld simulation, delitation, heat treatment, impact toughness, Charpy metode


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