Community Research and Development Information Service - CORDIS


The project aims to reach a better understanding of the influences of hot strip processing on its mechanical properties. ECSC projects have shown the potential of models used for online prediction at hot strip processing plants. The resulting simulation results give valuable information about the process and the produced strips' properties. Prior to their delivery as hot strip to customers and processors, further processing is carried out on a large number of strips. These operations include pickling, temper rolling and slitting, and influence the mechanical properties, making the calculated results, valid for the hot strip mill, obsolete. In the project a larger set of laboratory investigations were performed on commercial and laboratory steels with regard to levelling, temper rolling, pickling and ageing. These data were backed up by data collected from commercial production lines covering levelling and pickling. On the modelling side a new microstructure-based approach is presented for kinematical hardening of ferritic-pearlitic steels, including microalloying. The development of this model has also led to improved characterisation tests for the Bauschinger effect. This test could successfully be transferred to a Gleeble 3500 thermomechanical simulator. For levelling and temper rolling, models from the literature review have been suggested and implemented. While the leveller models presented in literature use mainly empirical equations for the strain hardening behaviour, the newly developed kinematical hardening model allows a more sophisticated approach.

Additional information

Authors: PAUL G, ThyssenKrupp Steel AG, Duisburg (DE);SCHMITZ DR. H-P, ThyssenKrupp Steel AG, Duisburg (DE);BARBÉ L, CRM, Zwijnaarde (BE);GALLEZ C, CRM, Zwijnaarde (BE);ALLAIN S, ArcelorMittal Research, Maizières-les-Metz (FR);BOUAZIZ O, ArcelorMittal Research, Maizières-les-Metz (FR)
Bibliographic Reference: EUR 23852- EN (2009), 115 pp. Euro: 20
Availability: (Catalogue Number: KI-NA-23852-EN-S)
ISBN: ISBN: 978-92-79-11328-4
Record Number: 200910494 / Last updated on: 2009-12-11
Original language: en
Available languages: en