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Ferrite/pearlite band prevention in dual phase and TRIP steels: Model development

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>2005
<mark>Journal</mark>ISIJ International
Issue number3
Volume45
Number of pages8
Pages (from-to)380-387
Publication StatusPublished
<mark>Original language</mark>English

Abstract

A model for predicting the conditions for ferrite/pearlite band prevention in dual phase and TRIP steels has been developed. The competition between processing parameters such as the austenitisation time and temperature, the transformation temperature and microchemical segregation wavelength is explored. The effects of alloy composition in the tendency to form ferrite/pearlite bands are quantified. A simple formula combining processing parameters and compositions for describing band formation is presented. The calculations show that the most prominent factor for preventing banding is the control of the microchemical wavelength. In addition to C and Mn, Al and Si concentrations have shown to play a smaller but significant role in band formation behaviour.