Paper Title:
Modeling of Phase Transformation and Carbon Behaviors after Holding at γ/α Region and Controlled Cooling in Low Carbon Steels
  Abstract

It is very important to understand interstitial carbon behaviors in cold rolled steel to get the good formability as well as the high strength. In low carbon steel, most of carbons are consumed by the formation of grain boundary cementite during cooling. During heating and holding between Ae1 and Ae3, cementite is dissolved and consequently carbon enriched austenite is formed. By controlled cooling, retained austenite as well as bainite and martensite are formed. In this study, the effect of silicon, intercritical annealing, isothermal bainite transformation on the formation of ferritic bainite, cementite and retained austenite are modeled by nucleation and growth, diffusion and dissolution. In addition, the formation of retained austenite and their carbon contents are modeled and compared with experimental data.

  Info
Periodical
Materials Science Forum (Volumes 638-642)
Main Theme
Edited by
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
Pages
3331-3336
DOI
10.4028/www.scientific.net/MSF.638-642.3331
Citation
J.M. Choi, B.J. Park, K.S. Lee, K.J. Lee, "Modeling of Phase Transformation and Carbon Behaviors after Holding at γ/α Region and Controlled Cooling in Low Carbon Steels", Materials Science Forum, Vols. 638-642, pp. 3331-3336, 2010
Online since
January 2010
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