Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

MM: Fachverband Metall- und Materialphysik

MM 19: Poster Session

MM 19.22: Poster

Dienstag, 10. März 2026, 18:00–20:00, P5

Crystallization kinetics of supercooled liquid palladium — •Zuzanna Kostera¹, Przemyslaw Dziegielewski¹, Ryszard Sobierajski², and Jerzy Antonowicz¹ — ¹Warsaw University of Technology, Faculty of Physics, Warsaw, Poland — ²Polish Academy of Science, Institute of Physics, Warsaw, Poland

In this work we use large-scale molecular dynamics to study crystallization kinetics of supercooled liquid palladium over 0.3-0.6 T_m (T_m = 1828K). The crystallization temperature strongly affects the final polycrystalline morphology, reflecting temperature-dependent nucleation and growth kinetics. From the evolving grain structure we extract homogeneous nucleation and growth rates and construct a time*temperature*transformation (TTT) diagram. The TTT diagram yields a critical cooling rate of 10¹³ K/s, consistent with Pd’s poor glass-forming ability. Homogeneous nucleation peaks at 10³⁵ m⁻³s⁻¹ near 0.5 T_m and its temperature dependence agrees with classical nucleation theory.

Keywords: Molecular Dynamics; Metals; Crystallization