20.500.12556/DKUM-83647 Analiza mehanskih lastnosti jekel pri povišanih temperaturah obratovanja magistrsko delo Analysis of mechanical properties of steels at elevated operating temperatures Glavni cilj magistrskega dela je analiza mehanskih lastnosti jekel pri povišanih temperaturah obratovanja. Podrobno je predstavljena osnovna zgradba kovin, kristalnih struktur in natezni preizkus, ki je temelj za določanje lastnosti materialov. Natezni preizkus je standardiziran postopek, katerega predpisujeta ISO 6892-1 in ISO 6892-2, ki podajata pogoje za testiranje materialov. Cilj naloge je bil ugotoviti, kako se mehanske lastnosti jekla spreminjajo s povečevanjem temperature, ter kako na mehanske lastnosti jekla vpliva količina železa in ostalih legirnih elementov. Pri določanju vpliva temperature in kemijske sestave na mehanske lastnosti jekla smo izvedli kemijsko analizo vzorcev in natezni preizkus, ki se je izvajal v temperaturnem območju od 90 °C do 250 °C. The main objective of the MSc thesis is to analyse the mechanical properties of steels at elevated operating temperatures. The basic structure of metals, crystal structures and the tensile test, which is the basis for determining the properties of materials, are presented in detail. Tensile testing is a standardised procedure prescribed by ISO 6892-1 and ISO 6892-2, which specify the conditions for testing materials. The aim of the thesis was to determine how the mechanical properties of steel change with increasing temperature, and how the mechanical properties of steel are affected by the amount of iron and other alloying elements. To determine the effect of temperature and chemical composition on the mechanical properties of the steel, chemical analysis of the samples and tensile tests were carried out over a temperature range of 90 °C to 250 °C. jeklo mehanske lastnosti natezni preizkus temperatura steel mechanical properties tensile test elevated temperature true true false [L. Barbič] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-01-20 01:31:52 2023-06-01 13:02:12 2023-11-08 13:59:58 0000-00-00 00:00:00 2023 0 Maribor 0 Krško XVII, 91 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 669.14:620.17(043.2) 154221059 MAG_Barbic_Luka_2023.pdf MAG_Barbic_Luka_2023.pdf 1 B9D9C83C374558D922B738DEAE0E8529 ce20ffbf899b64006cb085afa42be8edf40ac67a3d41f64b9c9ae2b1361e221f 523237b8-cd4f-11ed-9bef-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=166342 Fakulteta za energetiko 0 0 0