20.500.12556/DKUM-25735 Charpy toughness and microstructure of vibrated weld metal Vibration during welding can be used to obtain certain changes in mechanical properties of weld metal. Research work on the influence of vibration on the secondary microstructure of welds and hence on the Charpy toughness was performed. Vibration during welding exhibits positive effects on the microstructure constituent formation. Multipass welding was simulated with reheating of the original single pass weld in order to obtain similar microstructure to multipass welds. Microstructures were examined with an optical microscope. Additionally, fractographic examination of the rupture of Charpy specimens was performed. Changes in the microstructure according to vibration were observed which affect toughness of the weld metal. Vibration during welding was rated more effective in the case of reheating the weld metal, which is the case in multipass welding. welding welded joints mechanical properties of metals ferrite vibration microstructure toughness notched bar testing weld metal varjenje zvarni spoji mehanske lastnosti kovin ferit vibriranje mikrostruktura žilavost true false false Angleški jezik Angleški jezik Neznano 2012-05-31 10:40:06 2012-05-31 10:40:07 2022-04-15 03:39:59 2023-12-31 03:22:15 2006 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791.05:620.1 10568982 1362-1718 URN:SI:UM:DK:OGWX4IUE http://dx.doi.org/10.1179/174329306X102075 1 https://dk.um.si/Dokument.php?lang=slv&id=34594 Fakulteta za strojništvo 0 0 0