Title: Analysis of interaction between recrystallisation and nitride precipitation in cold rolled Al-killed low carbon steel

Authors: Imre Felde; András Mucsi

Addresses: Faculty of Informatics, Obuda University, 1034 Budapest, Bécsi út 96/b., Budapest, Hungary ' Budapest University of Technology and Economics, Department of Materials Science and Technology, 1111 Budapest, Bertalan Lajos út 7. Budapest, Hungary

Abstract: In this paper the conditions of interaction between nitride precipitation and recrystallisation in a low carbon steel have been investigated. On cold rolled steel specimens thermoelectric power tests and microstructural investigations have been performed in order to analyse the conditions of the so-called retardation phenomenon occurring during recrystallisation. On the basis of experimental investigations it was concluded that the precipitated nitrides affect recrystallisation only in that cases, if the precipitated fraction is more than 45-50% regardless to the treatment temperature. Retardation in recrystallisation during isothermal heat treatments was observed only if the precipitated fraction of nitrides was between 50% and 90% independently of the temperature of heat treatment. The rate of recrystallisation process is also strongly affected by the nitride particles.

Keywords: nidtride precipitation; recrystallisation; retardation phenomenon; cold rolling; low carbon steel; microstructure; isothermal heat treatment.

DOI: 10.1504/IJMMP.2015.068714

International Journal of Microstructure and Materials Properties, 2015 Vol.10 No.2, pp.114 - 128

Published online: 10 Apr 2015 *

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