Interaction Deformation / Precipitation / Phase Transformation in Nb Micro-Alloyed Steels

Abstract:

Characterization of the phase transformation of Nb-micro-alloyed steels has to be performed taking into account the effect of deformation and precipitation. In the present investigation, the austenite to ferrite phase transformation is characterized in continuous cooling experiments after deformation at high temperature. The resulting phase transformation kinetics and microstructure showed an influence of the soaking temperature. Detailed investigations of the possible causes of the change of mechanism of phase transformation indicate that the amount of niobium in solution correlates with the slowing down in phase transformation kinetics.

• Periodical: Solid State Phenomena (Volumes 172-174)
• Pages: 735-740
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.172-174.735
• Online since: June 2011
• Authors: Philippe Thibaux, Martin Liebeherr, Dominique De Avila Cossa
• Keywords: Austenite, Ferrite, Niobium, Phase Transformation, Precipitation, Steel

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