20.500.12556/RUL-103096 Analiza TIG varjenja titanove zlitine Timetal Exhaust XT TIG welding analysis of Timetal Exhaust XT titanium alloy Diplomsko delo obravnava osnovne fizikalne lastnosti titana in njegovih zlitin, katere so temelj za nadaljno obravnavo varjenja in vrednotenja kakovosti zvarnih spojev. Opisan je TIG postopek varjenja titana, ter nekatere metode ugotavljanja kakovosti zvarov. Ker posamezni varilci ne varijo identično, v eksperimentalnem delu naloge ugotavljam odvisnost kakovosti zvara od hitrosti varjenja. Uporabljeni so bili trije vzorci titanove zlitine, zvarjeni po TIG postopku. Kakovost zvarov smo ocenili na podlagi vizualne kontrole, nateznega preizkusa, mikrostrukturne analize in merjenja trdote. Ugotovili smo, da kakovost zvara, v izbranem obsegu parametrov, ni odvisna od hitrosti varjenja, ker so vsi zvari kvalitetno izdelani. To je najbolj razvidno iz nateznega testa, ki je pokazal, da je natezna trdnost zvarov višja od osnovnega materiala. In this study we discuss the basic physical properties of titanim and its alloys. The physical properties serve as a fundament for further welding discussion and weld quality evaluation. We discuss TIG welding procedure, and certain standard methods for obtaining weld quality information. Since welding techniques differ from welder to welder, we discuss the relation between the weld quality and welding speed in the experimental part of this study. Three samples were used, welded by TIG welding procedure. The weld qualitiy is determined by visual evaluation, tensile test, microstructure analysis and hardness testing. The results showed, that weld quality was not dependant on welding speed, since all welds had mechanical properties, that matched or exceeded those, of base material. Tensile test results showed, that tensile strength of base material was lower than tensile strength of weld. Titanove zlitine TIG varjenje titana Kakovost zvarov Natezna trdnost Trdota Mikrostruktura Titanium alloys Titanium TIG welding Weld quality Tensile strength Hardness Microstructure true false false [M. Ivanuša] Slovenski jezik Angleški jezik Zaključna naloga 2018-09-14 07:45:01 2018-09-14 07:45:04 2022-08-16 03:39:57 0000-00-00 00:00:00 2018 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791.75+669.295(043.2) 208699 16413723 2470.pdf 2470.pdf 1 4BC0AAA72F745A7708CB857F2A9667BB cd283a4d1d138cd0f4b60ddf38649212a958493af0b530550a0c45a5f1a30b2c b620820a-a1b5-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=113491 Fakulteta za strojništvo 0 0 0