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  • Study of structural processes during the direct rolling of steel pre-products cast near their final shape by means of simulation tests using direct charging

Abstract

The application of direct charging contains the possibility of producing hot strip of steel with less energy consumption compared to the conventional cold charging. Before industrial introduction of this newly developed technique intensive investigations have to be carried out with the aim to transform the coarse as-cast microstructure into a fine-grained room temperature structure to guarantee the demanded mechanical specifications for each steel grade. The aim of this research project is the investigation of the interaction between the casting and hot rolling parameters on the resulting microstructure and mechanical properties of six steel grades. Test series have been performed for three stainless steels (X6Cr17, X5CrNi18 10, X6CrNiTi18 10), a microalloyed fine-grained structural NbV-steel, a Ti-microalloyed steel 27MnSiVS5+Ti suitable for hardening and tempering and a low-carbon PA-steel also with Ti-microalloying addition for an application for cold forming. For these steels the possibilities for an application of direct charging are described as well as limitations which have been found.

Additional information

Authors: PAWELSKI O, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf (DE);ZENTARA N, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf (DE);KASPAR R, Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf (DE)
Bibliographic Reference: EUR 16081 DE (1997) 127pp., FS, ECU 21.50
Availability: Available from the (2)
ISBN: ISBN 92-828-0090-3
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