909 Analysis of Inhomogeneous Deformation of Dual Phase Steel by Phase-Field Method and Homogenization Method

2010 ◽  
Vol 2010.23 (0) ◽  
pp. 107-108
Author(s):  
Akinori YAMANAKA ◽  
Masahiko YOSHINO
Keyword(s):  
Phase Field ◽  
Dual Phase Steel ◽  
Field Method ◽  
Homogenization Method ◽  
Phase Field Method ◽  
Dual Phase ◽  
Inhomogeneous Deformation

A Phase Transformation Model for the Austenitisation of Martensite in Dual-Phase Steel

2007 ◽  
Vol 539-543 ◽  
pp. 4608-4613 ◽  
Author(s):  
Richard G. Thiessen ◽  
Jilt Sietsma ◽  
I.M. Richardson
Keyword(s):  
Dual Phase Steel ◽  
Driving Forces ◽  
Field Method ◽  
Nucleation And Growth ◽  
Transformation Model ◽  
Nucleation Theory ◽  
Phase Field Method ◽  
Classical Nucleation Theory ◽  
Dual Phase ◽  
Unique Approach

This work presents a unique approach for the modelling of the austenitisation of martensite in dual-phase steels within the phase-field method. Driving forces for nucleation and growth are derived from thermodynamic databases. Routines for nucleation are based on a discretisation of the classical nucleation theory. Validation is given via dilatometric experiments.

Phase-Field Modeling of Morphological Change of Ferrite during Decomposition of Austenite in Fe-C Alloy

2007 ◽  
Vol 345-346 ◽  
pp. 935-938
Author(s):  
A. Yamanaka ◽  
Tomohiro Takaki ◽  
Yoshihiro Tomita
Keyword(s):  
Morphological Change ◽  
Phase Field ◽  
Numerical Approach ◽  
Field Method ◽  
Homogenization Method ◽  
Ferrite Phase ◽  
Phase Field Method ◽  
Element Analysis ◽  
Phase Field Simulation ◽  
Field Simulation

The integrated simulation model for microstructural design of Fe-C alloy using the phase-field method and the homogenization method is proposed. First, the phase-field simulation is performed to simulate the morphological change of the grain boundary ferrite to Widmanstätten ferrite. Then, in order to clarify the effects of the morphology of the ferrite phase on the micro- and macroscopic mechanical properties, the finite element analysis based on the homogenization method is conducted with the representative volume element obtained from the phase-field simulation. This numerical approach provides a powerful tool to investigate systematically the micro and macroscopic mechanical behavior with the morphological change of the ferrite phase in the Fe-C alloy.

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