Primary recrystallisation behaviour of low carbon steel used for wiredrawing
by H. Bouhalais; Z. Larouk
International Journal of Microstructure and Materials Properties (IJMMP), Vol. 6, No. 5, 2011

Abstract: The commercial importance of low alloy carbon steels is due to their plastic deformation properties. These properties allow them to be formed into useful shapes such as wires. The present steel is produced by Trefisoud, Setif, Algeria and used for wiring. It is low carbon steel containing mainly (weight %) 0.05% C, 0.3% Mn, 0.1% S and 0.12% Cr and is supplied as wires of 6, 4, 3.18 and 2.45 mm diameters. The samples are subjected to annealing treatments at 480°C to 520°C. The optical microscopic and SEM analyses are used to identify the microstructure of the material in as received and deformed conditions. It is found that tensile properties depend on the wiredrawing area reduction (?_w). The recrystallisation temperature is determined and found to be lower for the wire with higher wiredrawing area reduction (?_w). The two parameters (k and n) in Avrami law are calculated. A relationship between ?_w and recrystallised grain size (d_rec) is established. The recrystallisation activation energy is estimated. The obtained results are compared with other material results.

Online publication date: Wed, 09-Nov-2011

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