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Meeting MS&T22: Materials Science & Technology
Symposium Multi Scale Modeling of Microstructure Deformation in Material Processing
Presentation Title Stochastic Model Describing Phase Transformations in Steels Accounting for a Random Character of Nucleation
Author(s) Danuta Szeliga, Roman Kuziak, Lukasz Poloczek, Jan Kusiak, Maciej Pietrzyk
On-Site Speaker (Planned) Danuta Szeliga
Abstract Scope An important problem of the heterogeneity of the multiphase microstructure was considered in the paper. The stochastic model of multi-step hot deformation was applied to calculate histograms of the dislocation density and the grain size at the beginning of phase transformations. These histograms were used as input for simulation of phase transformations. Conventional deterministic model of the kinetics of transformations was connected with a stochastic model of nucleation. Heterogeneity of the phase composition was calculated for various constant cooling rates, as well as for the industrial laminar cooling process. The results showing an influence of the heterogeneity of the dislocation density and the grain size on the microstructure heterogeneity in the final product can be considered reliable, because they are based on the material models, which were identified and verified experimentally in earlier publications. The effect of the uncertainty of the boundary conditions is presented in a qualitative manner.
Proceedings Inclusion? Planned: Other (journal publication, etc.; describe below)

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Development of the Random Cellular Automata Model of Unconstrained Grain Growth
Hardness-dependent Plasticity and Damage Initiation Within Simulated Tension-shear Testing of AHSS Resistance Spot Welds
Microstructure Based Computational Analysis of Heterogeneous Materials
Multi Scale Modeling of Elastic Properties of FeMnNiCoMo System
New Insights into the Cube Texture Development during Recrystallization of High to Medium SFE FCC Metals
PRISMS-fatigue: A General Framework for Fatigue Analysis in Polycrystalline Metals and Alloys Using the Crystal Plasticity Finite Element Method
Stochastic Model Describing Phase Transformations in Steels Accounting for a Random Character of Nucleation

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