Alloy Development for Energy Technologies: ICME Gap Analysis: Poster Session
Sponsored by: TMS Materials Processing and Manufacturing Division, TMS: Integrated Computational Materials Engineering Committee
Program Organizers: Ram Devanathan, Pacific Northwest National Laboratory; Raymundo Arroyave, Texas A & M University; Carelyn Campbell, National Institute of Standards and Technology; James Saal, Citrine Informatics
Tuesday 5:30 PM
March 21, 2023
Room: Exhibit Hall G
Location: SDCC
Session Chair: Ram Devanathan, Pacific Northwest National Lab
M-15: Molecular Dynamics Study of Gradient Energy Coefficient and Grain-boundary Migration in Aluminum Foam: Chaimae Jouhari1; Yucheng Liu1; Doyl Dickel2; 1South Dakota State University; 2Mississippi State University
Aluminum foam is one of the most widely applied metal foams that has recently attracted many researchers’ attention due to its unique combination of properties derived from its cellular structure and base material. Previous studies have shown that the foaming process is responsible for the resulting microstructure, which in turn affects the properties of the metal foams and determines their applicability in industry. In order to facilitate the understanding of the process-structure-property-performance relation of metal foams, a phase-field model that predicts the microstructural evolution of these materials during foaming process, must be developed. In this paper, a series of molecular dynamics (MD) simulations were performed on a collection of aluminum and silicon atoms to determine the gradient energy coefficient and the grain boundary mobility of the Al-Si system, which are needed to fully parametrize an existing phase-field model developed by the authors for the aluminum foam.