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Mesoscopic Simulation of the Ferrite Nucleation on Austenitic Grain Boundary for Nanograined Steel

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Abstract:

We use the cellular automaton (CA) modeling to investigate the ferrite nucleation on the austenite grains. On the basis of the thermodynamics and kinetics of phase transformation from austenite to ferrite, the CA modeling demonstrates that the size of nucleated ferrite grains is increased with increasing of cooling rates, and nucleation process is finished instantly at a given cooling rate. The initial austenite grain size plays an important role in the obtained ferrite nucleation number, and the potential nucleation cells are increased.

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Periodical:

Materials Science Forum (Volume 817)

Pages:

731-735

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.817.731

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Online since:

April 2015

Authors:

Peng Yu*, Lin Zhang, Lin Xiu Du, Jun Hu

Keywords:

Cellular Automaton, Ferrite Nucleation, Microstructure, Phase Transformations

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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