Work

A new Fermi kinetic phase transition model for metals including hysteresis effects

Year: 2026

Type: preprint

Abstract: We present a new phenomenological model for phase transformation (PT) kinetics in metals, the "Fermi Kinetic Phase Transition (KPT) Model". It is designed such that it captures the main macroscopic features of our previously developed micro-structure dependent model, but at a fraction of the computational cost of the latter. Using four model parameters, the Fermi KPT model performs better than other phenomenological PT kinetics models in the literature, as shown by our present comparisons to experimental data for iron and tin.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2605.30495

Authors: Wills, Ann E. Mattsson, Blaschke, Daniel N., Prime, Michael B., Jones, David R., Fensin, Saryu, Hunter, Abigail

Institution: Los Alamos National Laboratory

Topic: Thermodynamic and Structural Properties of Metals and Alloys

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

Funders: U.S. Department of Energy, National Nuclear Security Administration, Los Alamos National Laboratory

Awards: G1840236740, G3639612556, G627013438

OpenAlex ID: W7163021602

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