20.500.12556/DKUM-69277 Vpliv žarjenja za odpravo zaostalih napetosti na navarih zavarjenih po epp postopku Influence of post-weld heat treatment for residual stress relieving on weld surfacing added by saw process Magistrsko delo obravnava vpliv žarjenja za odpravo zaostalih napetosti na navarih, zavarjenih po postopku EPP. Za raziskavo so bili izdelani preizkušanci z navari, med katerimi so bili trije preizkušanci izpostavljeni različnim temperaturam žarjenja in četrti preizkušanec, ki je ostal v varjenem stanju brez žarjenja za odpravo zaostalih napetosti. Na preizkušancih je bila izmerjena stopnja deformacije s koordinatno merilno napravo in zaostale napetosti z magnetno metodo. Meritve so pokazale, da ima višina temperature žarenja pomemben vpliv na velikost zaostalih napetosti in stopnjo deformacije na preizkušancih. Ugotovljeno je bilo, da učinkovitost žarjenja s temperaturo narašča le do maksimalne temperature, ki je odvisna od izbranega osnovnega in dodajnega materiala. Z nadaljnjim zvišanjem temperature se učinkovitost žarjenja ponovno zmanjša. The master thesis at hand deals with the influence of annealing for relaxation of residual stress on specimens, clad welded with the SAW process. For this research, four specimens were prepared, of which three were exposed to different annealing temperature and the fourth specimen remained in its original (as-welded) condition. Strain on the speciments was measured using coordinate measuring device and the residual stress was measured using magnetic method. Results revealed that the annealing temperature has a major influence on the level of the residual stress and strain on the test pieces. This proves that the efficiency of annealing with temperature increases only to a certain maximum temperature, which depends on the selected basic and the feed material. Continuous increase in temperature will decrease the efficiency of annealing. varjenje postopek EPP zaostale napetosti deformacija welding SAW process residual stresses strain true true false [Ž. Tajnikar] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2017-12-16 17:15:48 2018-02-09 11:09:20 2022-08-01 17:06:53 2019-07-11 17:26:55 2018 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.377:621.791.053(043.2) 21299222 URN:SI:UM:DK:VYKMF6IX MAG_Tajnikar_Ziga_2018.pdf MAG_Tajnikar_Ziga_2018.pdf 1 979204C731F6AAD9EB2095D80AF171F4 ddd7592ce662762eb8f524178247e7783ef7be97833b9f089345e7f889dd12ec a3cb7c95-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/f7b3b305-71ce-4895-b5a2-1109f3bfb947 https://dk.um.si/Dokument.php?lang=slv&id=121726 Fakulteta za strojništvo 0 0 0