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analysis of transformation plasticity in steel using a finite element method coupled with a phase field model分析转换可塑性钢铁用有限元法耦合的相场模型
Analysis of Transformation Plasticity in Steel Using a
Finite Element Method Coupled with a Phase Field
Model
1 2 1 3 4 2
Yi-Gil Cho , Jin-You Kim , Hoon-Hwe Cho , Pil-Ryung Cha , Dong-Woo Suh , Jae Kon Lee , Heung
Nam Han1*
1 Department of Materials Science and Engineering and Center for Iron Steel Research, RIAM, Seoul National University, Seoul, Republic of Korea, 2 Sheet Products and
Process Research Group, Technical Research Laboratories, POSCO, Pohang, Republic of Korea, 3 School of Advanced Materials Engineering, Kookmin University, Seoul,
Republic of Korea, 4 Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, Pohang, Republic of Korea
Abstract
An implicit finite element model was developed to analyze the deformation behavior of low carbon steel during phase
transformation. The finite element model was coupled hierarchically with a phase field model that could simulate the
kinetics and micro-structural evolution during the austenite-to-ferrite transformation of low carbon steel. Thermo-elastic-
plastic constitutive equations for each phase were adopted to confirm the transformation plasticity due to the weaker
phase yielding that was proposed by Greenwood and Johnson. From the simulations under various possible plastic
properties of each phase, a more quantitative understanding of the origin of transformation plasticity was attempted by a
comparison with the experimental observation.
Citation: Cho Y-G, Kim J-Y, Cho H-H, Cha P-R, Suh D-W, et al. (2012) Analysis of Transformation Plasticity in Steel Using a Finite Element Method Coupled with a
Phase Field Model. PLoS ONE 7(4): e35987. doi:10.1371/journal.pone.0035987
Editor: Markus J. Buehler, Massachusetts In
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