High-fidelity modeling of interface crossing in the diffusion welding process at the polycrystalline scale

by

High-fidelity modeling of interface crossing in the diffusion welding process at the polycrystalline scale

Camille Godinot1,2,3, Emmanuel Rigal1, Frédéric Bernard2, Philippe Emonot1, Pierre-Eric Frayssines1, Luc Védie1,3, Marc Bernacki3

1CEA, LCA Laboratory, Grenoble, France.

2Europe Burgundy University, ICB, UMR CNRS, Dijon, France.

3Mines Paris, PSL University, Centre for Material Forming (CEMEF), UMR CNRS, 06904 Sophia Antipolis, France.

DOI:

https://doi.org/10.7494/cmms.2025.4.1034

Abstract:

Controlling the microstructure of a diffusion welded interface is a critical point to ensure optimum mechanical properties and the homogeneity of the joint. Beyond the intimate contact formation between bonded parts studied in the literature, this article focuses on the grain boundary crossing of the interface during this process and its measurement. Following this perspective, a level-set method has been used for full-field microstructure simulations in 2D with various interface parameters. Two crossing measurement models have been formulated, tested and discussed over the simulations.

Cite as:

Godinot, C., Rigal, E., Bernard, F., Emonot, P., Frayssines, P., Védie, L., Bernacki, M. (2025). High-fidelity modeling of interface crossing in the diffusion welding process at the polycrystalline scale. Computer Methods in Materials Science, 25(4), – . https://doi.org/10.7494/cmms.2025.4.1034

Article (PDF):

Accepted Manuscript – final pdf version coming soon

Keywords:

diffusion welding, interface crossing, pore closure, healing, level-set, high-fidelity simulation

Publication dates:

Received: 04.11.2025, accepted: 09.02.2026, published: XX.03.2026

Publication type:

Original scientific paper

References: