Paper Title:
Kinetics of Recrystallization and Grain Growth of Cold Rolled TWIP Steel
  Abstract

Hot rolled, laboratory-cast, TWIP steel samples (5.4 mm thick) of 22% Mn - 0.6% C (in mass-%) were cold rolled to different reductions (from 40 % to 70 %) and subsequently isothermally annealed for various times at temperatures ranging from 450º C to 1100º C. The evolution of recrystallization and grain growth was followed by control of the softening kinetics complemented by metallographic, OIM and microtexture observations. A map of the recovery, recrystallization and grain growth in the temperature-time space was obtained. In all instances, the grain size at the end of recrystallization was very fine, D ≤ 2 µm and larger grain sizes were the result of grain growth. A range of grain sizes 2 µm ≤ D ≤ 50 µm was covered by the grain growth experiments. A phenomenological grain growth equation that is useful for the annealing control of this steel was derived from the measurements.

  Info
Periodical
Advanced Materials Research (Volumes 89-91)
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
153-158
DOI
10.4028/www.scientific.net/AMR.89-91.153
Citation
F. de las Cuevas, M. Reis, A. Ferraiuolo, G. Pratolongo, L. P. Karjalainen, V. García Navas, J. Gil Sevillano, "Kinetics of Recrystallization and Grain Growth of Cold Rolled TWIP Steel", Advanced Materials Research, Vols. 89-91, pp. 153-158, 2010
Online since
January 2010
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$32.00
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