NOMATEN HYBRID-SEMINAR January 14: Seminar by Dr. Laurence Lunaville
In-person: NOMATEN seminar room
NOMATEN HYBRID-SEMINAR
online: https://meet.goto.com/NCBJmeetings/nomaten-seminar
In-person: NOMATEN seminar room
Tuesday, JANUARY 14th 2025 13:00 CET
Seminar by Dr. Laurence Lunaville
Dr. Laurence Lunaville
CEA, France
Abstract:
We will show the interest of phase field methods to describe the evolution of microstructure in materials by discussing the nucleation and growth process in FeCr alloys during isochronous annealing. We have implemented a hybrid method combining Monte Carlo simulations and phase-field calculations (Cahn-Hilliard equation) to describe the microstructure in this alloy. In particular, we clearly show in this work that classical nucleation theory cannot be applied to such an alloy. This theoretical work has made it possible to explain the SAT experiments and propose mechanisms to explain the mechanical hardening observed in this material.
Bio:
Dr. Luneville worked on transport equations in neutronics and radio protection. She then turned her attention to the calculation of atomic displacements to estimate the damage produced by electrons, ions and neutrons in nuclear materials. In particular, she developed the DART code, distributed by the IAEA to calculate neutron damage in solids. Finally, she has been working for over 10 years on the application of phase field methods to simulate the microstructures of materials under and out of irradiation.