20.500.12556/DKUM-53249 Konstitucija ternarnega sistema Al-Ti-B v aluminijevem kotu Constitution of the ternary system Al-Ti-B in the aluminium-rich corner V delu je sistematično raziskan aluminijev kot ternarnega sistema Al-Ti-B. Izdeleli smo po pet (5) zlitin s skupno koncentracijo titana in bora 0,1; 0,5 in 1 mas.%. Z diferenčno termično analizo (DTA) smo opredelili temperature likvidus ter temperature eno- in invariantnih reakcij, z različnimi metodami metalografske analize (svetlobna mikroskopija, vrstična elektronska mikroskopija, EDS, rentgenska difrakcija) pa mikrostrukture vseh zlitin v izhodnem stanju in po DTA. Ob upoštevanju rezultatov DTA in metalografske analize ter tudi nekaterih že znanih značilnosti zlitin Al-Ti-B smo analizirali razmere pri poteku eno- in invariantnih reakcij, opredelili njhiovo naravo ter podali najverjetnejšo projekcijo likvidus ploskve v aluminijevem kotu ternarnega sistema Al-Ti-B. In this work the Al-corner of the ternary system Al-Ti-B was sistematically investigated. Several alloys with cumulative content of titanium and boron with 0,1 , 0,5 and 1 weight percentage Ti+B were prepared. Differential thermal analysis (DTA) of all alloys were carried out to determine the liquidus temperatures and temperatures of uni- and invariant reactions. Microstructure of all alloys was analysed by different techniques of metallographic analysis (light and scanning electron microscopy, EDS and X-ray diffraction) in the as-cast condition and after DTA. By taking into account results of DTA, metallographic analysis and also the already known characteristic of Al-Ti-B alloys we analysed conditions in which uni- and invariant reactions are taking place. We also determined the nature of these reactions and proposed the most probable liquidus projection in the aluminium corner of the system Al-Ti-B. Al-Ti-B konstitucija invariantna reakcija enovariantna reakcija Al-Ti-B constitution invariant reaction univariant reaction true false false Inštitut za kovinske materiale in tehnologije Slovenski jezik Angleški jezik Delo ni kategorizirano 2015-07-10 19:49:14 2015-07-10 19:49:14 2022-06-02 03:09:44 2019-07-11 08:05:19 1999 0 0 str. 307-312 št. 5 Letn. 33 1999 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669.71'295'781:669.018 31742209 163498 1318-0010 URN:SI:UM:DK:VP01C4OF http://www.dlib.si/details/URN:NBN:SI:doc-97A7LYKN 1 https://dk.um.si/Dokument.php?lang=slv&id=77809 Fakulteta za strojništvo 0 0 0