Title: The development of recovery annealed steels

Authors: J. Penning, J. Dilewijns, Y. Houbaert, U. Meers, N. Prum, R. Bulthe

Addresses: University of Ghent, Laboratory for Iron and Steelmaking, Technologiepark 9, B-9052 Ghent, Belgium. ' University of Ghent, Laboratory for Iron and Steelmaking, Technologiepark 9, B-9052 Ghent, Belgium. ' University of Ghent, Laboratory for Iron and Steelmaking, Technologiepark 9, B-9052 Ghent, Belgium. ' N.V. Sidmar, Department of Metallurgy and New Products, John Kennedylaan 51, B-9042 Ghent, Belgium. ' N.V. Sidmar, Department of Metallurgy and New Products, John Kennedylaan 51, B-9042 Ghent, Belgium. ' N.V. Sidmar, Department of Metallurgy and New Products, John Kennedylaan 51, B-9042 Ghent, Belgium

Abstract: Partially recrystallizing full hard steels might constitute an economic way of producing steels with high strength and fair ductility. The authors have shown that this is not practically feasible under industrial continuous annealing conditions. The only possibility is recovery annealing. Research work in the laboratory, using a simulator of a continuous annealing line, has shown that the ductility of recovery annealed steels can be improved by limiting the degree of cold deformation to some 50-55%, by the addition of boron and by a reduction of the slab reheating temperature.

Keywords: continuous annealing line; recovery annealing; rccrystallisation; steel sheet; high strength steels; ductility; cold deformation; boron; slab reheating temperature.

DOI: 10.1504/IJMPT.1995.036459

International Journal of Materials and Product Technology, 1995 Vol.10 No.3/4/5/6, pp.325 - 337

Published online: 03 Nov 2010 *

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