Faculty of Mechanical Engineering, Lj. (FSLJ)
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Varjenje nerjavnih dupleks jekel : diplomska naloga univerzitetnega študijaJančič, UrošV diplomi smo se osredotočali na primernost varjenja dupleks nerjavnih jekel po MAG postopku. Najprej smo poiskali pravi dodajni material, zaščitni plin smo izbrali glede na splošna priporočila, ... zavarili pa z robotom, da smo zagotovili ponovljivost pogojev. Pri varjenju smo spreminjali samo hitrost varjenja in vplivali na hitrost ohlajanja z prisilnim hlajenjem z vodo. Sproti smo merili temperaturo z termočleni na več mestih hkrati in nato z ustreznimi računalniškimi programi obravnavali podatke, da smo lahko izračunali hitrost ohlajanja. Sledile so meritve deleža ferita in kemijske sestave kar je bilo naše glavno orodje za določanje ustreznosti postopka. Prevaritev in zdravje zvarov smo nato preverili z makroobrusi. Dodatno smo izvedli še meritev trdote po Martensu in v nadaljevanju preizkusili zvare na upogib. Rezultati so pokazali, da je po MAG postopku mogoče kvalitetno zavariti. V primeru hlajenja z vodo takoj po zaključku smo se celo približali idealnem enakovrednem deležu obeh mikrostruktur.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [U. Jančič], 2012Language - slovenianCOBISS.SI-ID - 12432667
Author
Jančič, Uroš
Other authors
Tušek, Janez, 1952-
Topics
diplomske naloge |
nerjavna jekla |
dupleks jekla |
ferit |
avsenit |
feritno število |
hitrost ohlajanja |
mikrostrukture |
stainless steels |
duplex steels |
ferrite |
austenite |
ferrite number |
cooling rate |
microstructure
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U 0000006112 IN: 40006112 U 6112 IN: 40006112 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Jančič, Uroš | ![]() |
Tušek, Janez, 1952- | 02045 |
Source: Personal bibliographies
and: SICRIS
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