Atomistic fundamentals of plasticity at interfaces in lightweight complex alloys and transfer to continuum models – ATOUUM
Lightweights metallic materials with outstanding mechanical properties are of uttermost importance for the scientific and environmental challenges ahead. Such alloys commonly exhibit complex microstructures responsible for their peculiar mechanical behavior. The long-standing research question of the plastic deformation of materials and components is intrinsically related to the propagation of slip across interfaces such as grain boundaries or phase boundaries. Despite intense work, mechanisms of slip transfer remain to date fundamentally unclear. The primary objective of this project is to reveal the discrete features at the atomic scale associated with slip transfer in a representative selection of alloys, by using state-of-the-art atomistic simulations. This project will then identify and assess key parameters that can be transferred from our discrete approach to continuum models capable of considering dislocation-interface interactions at larger scale.
Monsieur Julien Guénolé (Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux)
The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.
LEM3 Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux
Help of the ANR 231,049 euros
Beginning and duration of the scientific project: September 2021 - 48 Months