Learn / Phase Transformations
Phase Transformations
How structure
changes with time,
temperature, and composition.
Understand nucleation, growth, ordering, spinodal decomposition, TTT/CCT diagrams, and how transformation pathways connect thermodynamics and kinetics.
1 · Start here
Build the foundation
2 · Learn the core
Master the key concepts
3 · Use a tool
Work with your data
LabRegular Solution & Scheil-Gulliver Labinteraction energy → phase diagram, Scheil profileInteractive binary phase diagram and tie-line lab from a regular-solution model (click for the lever rule, no topology hard-coded), plus a Scheil-Gulliver microsegregation calculator for core-to-rim dendrite composition.LabSpinodal, Nucleation & Coarsening Labcomposition, temperature → decomposition pathInteractive lab on spinodal decomposition vs. nucleation-and-growth, classical nucleation theory with a homogeneous/heterogeneous toggle, and a live particle-population simulation of precipitation coarsening (Ostwald ripening).LabBragg-Williams Order-Disorder Labtemperature → order parameter, superlattice spotsInteractive Bragg-Williams model of order-disorder transformations: the long-range order parameter S(T) from a self-consistent solve, the critical ordering temperature, a sublattice-occupancy visualization, and a schematic superlattice-reflection diffraction panel.LabKinetics for Real Alloys Labcooling path → TTT/CCT, case depthInteractive TTT and CCT diagrams built from a real nucleation-barrier times Arrhenius-mobility C-curve, plus case-depth diffusion for both fixed-surface carburizing and a self-consistently moving decarburizing phase boundary.
4 · Solve a problem
Troubleshoot real data
5 · Go deeper
Research-level topics
LabSpinodal, Nucleation & Coarsening Labcomposition, temperature → decomposition pathInteractive lab on spinodal decomposition vs. nucleation-and-growth, classical nucleation theory with a homogeneous/heterogeneous toggle, and a live particle-population simulation of precipitation coarsening (Ostwald ripening).LabBragg-Williams Order-Disorder Labtemperature → order parameter, superlattice spotsInteractive Bragg-Williams model of order-disorder transformations: the long-range order parameter S(T) from a self-consistent solve, the critical ordering temperature, a sublattice-occupancy visualization, and a schematic superlattice-reflection diffraction panel.LabKinetics for Real Alloys Labcooling path → TTT/CCT, case depthInteractive TTT and CCT diagrams built from a real nucleation-barrier times Arrhenius-mobility C-curve, plus case-depth diffusion for both fixed-surface carburizing and a self-consistently moving decarburizing phase boundary.
6 · All resources
Every Phase transf. page
- StoryTwo Bars, One MeltA one-minute scrolling story: two bars from one melt, one heat treatment apart, and why one cracked. Grain boundaries, precipitates and the order atoms keep, drawn live as you scroll.
- LabRegular Solution & Scheil-Gulliver LabInteractive binary phase diagram and tie-line lab from a regular-solution model (click for the lever rule, no topology hard-coded), plus a Scheil-Gulliver microsegregation calculator for core-to-rim dendrite composition.
- LabSpinodal, Nucleation & Coarsening LabInteractive lab on spinodal decomposition vs. nucleation-and-growth, classical nucleation theory with a homogeneous/heterogeneous toggle, and a live particle-population simulation of precipitation coarsening (Ostwald ripening).
- LabBragg-Williams Order-Disorder LabInteractive Bragg-Williams model of order-disorder transformations: the long-range order parameter S(T) from a self-consistent solve, the critical ordering temperature, a sublattice-occupancy visualization, and a schematic superlattice-reflection diffraction panel.
- LabKinetics for Real Alloys LabInteractive TTT and CCT diagrams built from a real nucleation-barrier times Arrhenius-mobility C-curve, plus case-depth diffusion for both fixed-surface carburizing and a self-consistently moving decarburizing phase boundary.
Other fields: TEM & STEM · EBSD & TKD · Atom Probe · Crystallography · Tribology · Nanoindentation · Scratch Testing · In-situ / FIB.