Influence of Second Phase Particles on Recrystallisation of Cold-Rolled Low Carbon Microalloyed Steels during Isothermal Annealing

Author:

Capdevila Carlos1,De Cock Tommy2,García-Mateo Carlos1ORCID,Caballero Francisca García1,García de Andrés Carlos1

Affiliation:

1. Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC)

2. CENIM-CSIC

Abstract

The recrystallisation behaviour of two cold-rolled low carbon microalloyed steels with different Ti content was investigated by thermoelectric power (TEP) measurements and metallography. It was shown that recrystallisation was more sluggish in the higher Ti grade steel as compare with traditional ELC and LC steels. The existence of Ti in solid solution together with the pinning effect of Nb-, V- and Ti-rich particles are likely to be responsible for such behaviour. Metallographic etching with picral revealed that cementite act as preferential nucleation site for recrystallisation.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference6 articles.

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2. A. Ney Jose Luiggi: Metall. Mater. Trans. A Vol. 29 (1998), p.2669.

3. Oatley C. W.: The scanning electron microscope, part 1, the instrument, (1st ed. Cambridge University Press, UK 1972).

4. Metallurgical and Thermochemical Databank, (Teddington, Middlessex, National Physical Laboratory, UK 1996), p.1.

5. V. Sardoy, M. Bouzekri, P. Zimmer and J. Merlin: Proc. of Int. Symp. on Modern LC and ULC Sheet Steels for Cold Forming: Processing and Properties, (Conference Book, Ed. W. Bleck, Vol. 1, Aachen 1998).

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