Title: Experimental modelling of materials properties and microstructure of new high-strength steels for press-hardening
Authors: Opatová, Kateřina
Jeníček, Štěpán
Stehlík, Adam
Jirková, Hana
Citation: KUČEROVÁ, Ludmila ed.; JIRKOVÁ, Hana ed.; JENÍČEK, Štepán ed. Proceedings PING 2020: modern trends in material engineering: 15.-17.09.2020, Pilsen. 1. vyd. Plzeň: University of West Bohemia, 2020, s. 47. ISBN 978-80-261-0958-7.
Issue Date: 2020
Publisher: University of West Bohemia
Document type: konferenční příspěvek
conferenceObject
URI: http://hdl.handle.net/11025/39813
ISBN: 978-80-261-0958-7
Keywords: kalení lisováním;PHS 1800;PHS 2000;materiálně-technologické modelování
Keywords in different language: press-hardening;PHS 1800;PHS 2000;material-technological modelling
Abstract in different language: Press-hardening is a highly dynamic process that involves rapid temperature changes. These process aspects play a major role in microstructural evolution and mechanical properties. In order to develop any thermomechanical processing sequence, including press-hardening, one needs materials models of the best possible accuracy, if relevant results are to be obtained from FEM methods employed for designing metalworking processes. Therefore, relevant data on materials behaviour under real process conditions must be obtained experimentally. In one such experiment, as described here, PHS 1800 and PHS 2000 low-alloy sheets of steel were subjected to thermal exposure identical to the heating sequence for press-hardening, including the removal from the furnace and transfer to the tool. Heat treatment sequences were proposed which correspond to the thermal profiles in the actual process. The results were input into FE simulations of press-hardening. In the low-alloy steels, the selected heat treatment sequence led to strengths of more than 2000 MPa and elongation levels of approx. 9%.
Rights: © University of West Bohemia
Appears in Collections:Proceedings PING 2020: modern trends in material engineering
Proceedings PING 2020: modern trends in material engineering

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