Jeonghwan Lee
Projects

Research &
software development

Selected work in phase-field model development, nuclear materials simulation and radiation dose assessment software.

01 / Model developmentManuscript in preparation

Reaction-extent
phase-field model

Research problem
Describing solution phases and stoichiometric compounds in ternary multiphase systems.
Development focus
A reaction-extent phase-field formulation with solution-phase composition relaxation.
Related manuscript

Reaction Extent Phase-Field Model with Solution Phase Composition Relaxation for Ternary Stoichiometric Multiphase Systems

Model & validationModel formulation
and validation figuresVisual material to be added
Reserved for the model schematic and validation results.
02 / Nuclear materialsManuscript in preparation

Telluride formation
in Ni–Cr–Te

Research problem
Stoichiometric telluride formation in Ni–Cr alloys exposed to tellurium, relevant to molten salt reactor structural materials.
Development focus
GPU-accelerated phase-field simulation of telluride formation and evolving phase and composition fields.
Related manuscript

GPU‑Accelerated Phase‑Field Simulation of Stoichiometric Telluride Formation in Ni–Cr–Te Systems for Molten Salt Reactor Structural Materials

Simulation videoPhase formation
and composition evolutionVideo to be added
Reserved for a simulation video with field labels and calculation conditions.
03 / Alloy microstructuresPublished studies

Phase separation
in Fe-based alloys

Research problem
The influence of magnetic ordering and Al concentration on phase separation and microstructural evolution.
Methods
Phase-field simulation of Fe–Cr and Fe–Cr–Al systems, including GPU-accelerated computation.
Magnetic ordering study · PDFFe–Cr–Al study · PDFα, α′ and σ phase study · PDF
Simulation videoMicrostructural evolution
in Fe–Cr and Fe–Cr–AlVideo to be added
Reserved for phase-separation sequences and comparisons between alloy compositions.
04 / Thermodynamics & elasticityPublished · 2025

Nonlinear lattice
parameter effects

Research problem
The role of a nonlinear lattice parameter–concentration relationship in alloy microstructural evolution.
Methods
Computational investigation of lattice parameter effects using the MOOSE framework.
Nonlinear lattice parameter study · PDF
Research figuresMicrostructure
comparisonsFigures to be added
Reserved for comparison figures from the published study.
05 / Software developmentDevelopment experience

Radiation dose
assessment software

Application
Radiation dose assessment through a graphical user interface.
Experience
Development of dose assessment software and use of GUI-based assessment workflows.
Application demonstrationDose assessment
through a graphical interfaceGUI screenshots or video to be added
Reserved for the actual program interface and an assessment demonstration.

Publications

Complete publication details and available papers.

All publications