01 / PHASE SEPARATION
Alloy phase transformations
Phase separation and microstructural evolution in Fe–Cr and Fe–Cr–Al alloys, alongside current research on telluride formation in Ni–Cr–Te.
Computational materials research
Phase transformations &
Profile photo
Jeonghwan Lee
Ph.D. candidate in Nuclear Engineering
Kyung Hee University
Phase transformations &
microstructural evolution
Research in phase-field modeling, computational thermodynamics and high-performance computing, with applications to phase separation, compound formation and nuclear materials.
Phase transformations across alloy systems
02 / MODEL DEVELOPMENT
Multicomponent systems
Phase-field formulations coupling thermodynamics and diffusion, with solution phases and stoichiometric compounds.
03 / NUMERICAL METHODS
Accelerated simulation
GPU computing and semi-implicit Fourier spectral methods for simulations of microstructural evolution.
Current research
Stoichiometric compound formation
Multicomponent, multiphase phase-field modeling of compound formation, with a current application to tellurides in Ni–Cr–Te.
The work examines how local composition, diffusion and competition between phases influence telluride formation in Ni–Cr alloys exposed to tellurium.
Current projectsPublished research
Nonlinear lattice parameter–concentration relationship and its role in microstructural evolution of alloys
J Lee, Y Li, S Hu, K Chang · Physica B: Condensed Matter
Read paper (PDF)Effect of Al concentration on the microstructural evolution of Fe–Cr–Al systems: A phase-field approach
J Lee, K Park, K Chang · Metals
Read paper (PDF)Effect of magnetic ordering on the spinodal decomposition of the Fe–Cr system: A GPU-accelerated phase-field study
J Lee, K Chang · Computational Materials Science
Read paper (PDF)Manuscripts in preparation
Reaction Extent Phase-Field Model with Solution Phase Composition Relaxation for Ternary Stoichiometric Multiphase Systems
GPU‑Accelerated Phase‑Field Simulation of Stoichiometric Telluride Formation in Ni–Cr–Te Systems for Molten Salt Reactor Structural Materials
Research correspondence
Contact information and academic profiles.
Contact & profiles