20.500.12556/DKUM-85191 Preiskava navara iz kobaltove zlitine na avstenitno nerjavno jeklo diplomsko delo Investigation of cladweld from cobald alloy on austenitic stainless steel V diplomski nalogi bom najprej predstavil problem, ter cilj same naloge. Nato bom predstavil teoretične osnove za boljšo razumevanje eksperimentalnega dela. Eksperimentalni del bo zajemal merjenje trdote vseh preizkušancev s pomočjo Vickersove metode pri kateri se bo ugotavljala trdota osnovnega materiala, navara ter mesto TVP področja. Nato bom na instrumentiranem Charpy udarnem kladivo izvedel preizkus udarne žilavosti ko material obremenimo iz mehkega področja (osnovni material) proti trdemu (navar). Prelome bom analiziral pod svetlobnim mikroskopom, ter jih nato primerjal z že storjenimi preizkusi in sicer ko je bil material obremenjen iz trdega področja proti mehkemu. In the thesis, I will first present the problem and the goal of the task. Then, I will introduce the theoretical foundations for a better understanding of the experimental work. The experimental part will involve measuring the hardness of all test specimens using the Vickers method, where the hardness of the base material, weld, and the HAZ (Heat-Affected Zone) will be determined. Next, I will conduct a Charpy impact test on an instrumented impact hammer to assess the impact toughness of the material when loaded from the soft region (base material) to the hard region (weld). Fractures will be analyzed under a light microscope and then compared to previous tests, specifically when the material was loaded from the hard region to the soft region. plazemsko varjenje zvar navar trdota udarna žilavost Plasma welding weld cladding hardness impact toughness true true false [A. Smrtnik] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-08-21 20:38:36 2023-10-09 16:13:29 2024-03-06 03:10:06 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XIII, 43 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.178:621.791.053(043.2) 187715843 VS_Smrtnik_Andrej_2023.pdf VS_Smrtnik_Andrej_2023.pdf 1 024CAC81E349CB32E28D6E1D91353259 0e3cd6f94f2e82edb40d366c8cb97b6a84bb12a2c62ff243de4bbbfc26175d8a 95d53bb7-5156-11ee-9995-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=172038 Fakulteta za strojništvo 0 0 0