Paper Title:
Preliminary Simulation for Competing Behaviors between Recrystallization and Transformation in Dual Phase Steels
  Abstract

The competitive behaviors between recrystallization and transformation during annealing in dual phase high-strength steels are studied both by experiments and by computer simulations. The Monte Carlo code was applied to simulate such competing behavior, explained the experimental results, as follows. (1) The progress of the transformation is affected by the starting point of the transformation in the course of recrystallization. Namely, if the transformation starts at the later stage of recrystallization, the n-value in JMAK equation is relatively high. (2) If the stored energy (driving force) of the transformation is above 5 times larger than that of the recrystallization, the effect of the stored energy is quite small. (3) If the number of nuclei were increased, the transformation proceeds a little faster, and then the transformed microstructures are significantly refined. When the transformation initiates at the early stage of the recrystallization, the number of nuclei can be increased by nucleation from the deformed matrix compared with the one from fully recrystallized matrix.

  Info
Periodical
Materials Science Forum (Volumes 558-559)
Edited by
S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara
Pages
1145-1150
DOI
10.4028/www.scientific.net/MSF.558-559.1145
Citation
K. Okuda, H. Yoshida, Y. Nagataki, Y. Tanaka, A. D. Rollett, "Preliminary Simulation for Competing Behaviors between Recrystallization and Transformation in Dual Phase Steels", Materials Science Forum, Vols. 558-559, pp. 1145-1150, 2007
Online since
October 2007
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$32.00
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