20.500.12556/RUL-132013 Effects of prior microstructure and heating rate on the depth of increased hardness in laser hardening comparison of computer simulation and experimental results The response of the hypo-eutectoid steel to laser hardening, which is measured as the depth of the increased hardness, depends not only on the set of the process parameters but also on the prior microstructure of the workpiece. The multiple preliminary stages of the treatment of the workpiece in the industrial conditions are commonly not completely known, resulting in an unclear prior microstructure of the workpiece. To model the response of the hypo-eutectoid steel, a validated numerical model for laser hardening has been used in the computer simulation of the process for four different cases. The numerical model takes into account the 3D geometry of the workpiece, its prior microstructure, and the effect of the heating rate during the laser hardening process on the kinetics of the phase transformation. The four cases were designed to take into account two different sets of process parameters and two different prior microstructures of the workpiece. The output of the computer simulation was verified experimentally. prior microstructures heating rate laser hardening computer simulations mikrostrukture hitrost segrevanja lasersko kaljenje računalniške simulacije true false true Angleški jezik Slovenski jezik Članek v reviji 2021-10-08 15:04:24 2021-10-08 15:04:27 2022-10-13 13:56:38 0000-00-00 00:00:00 2018 0 0 16 str. iss. 12, art. 1016 Vol. 8 Dec. 2018 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.4(045) 2075-4701 10.3390/met8121016 16374043 RAZ_Mole_Nikolaj_2018.pdf RAZ_Mole_Nikolaj_2018.pdf 1 FDB091F27758C32E2E582AEF09EA0E54 37f1748907850b61a7274519c1c910f8992381ede56d3d1ca62e15ae51ca2edc 519a3c4d-2838-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149507 https://www.mdpi.com/2075-4701/8/12/1016 1 f895d853-2837-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=149506 Fakulteta za strojništvo Fakulteta za matematiko in fiziko 0 0 0