About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithm Development in Materials Science and Engineering
|
Presentation Title |
Multiscale Modeling of Ni Alloys Selective Laser Melting Combining CalPhaD, Finite Elements, and Phase-field Methods |
Author(s) |
Seyed Mohammad Elahi, Rouhollah Tavakoli, Ahmed Kaci Boukellal, Thomas Isensee, Ignacio Romero, Damien Tourret |
On-Site Speaker (Planned) |
Damien Tourret |
Abstract Scope |
This study aims to build an Integrated Computational Materials Engineering (ICME) framework to simulate additive manufacturing across scales, focusing on selective laser melting (SLM). We combine CalPhaD, Finite Elements (FE) and Phase-Field (PF) methods, to predict relevant features of printed parts at different length scales. The CalPhaD method is used to compute the phase diagram and temperature-dependent alloy properties (e.g. heat capacity, density) used in other models. At the macroscopic scale, FE are used to calculate residual stresses and part distortion, as well as the temperature profile used in PF simulations. Microstructure formation at the scale of the melt pool, within two-dimensional slices of the printed part, is simulated using a computationally-efficient polycrystalline multi-GPU parallelized PF model. We apply our computational framework to SLM of nickel-based superalloys such as Inconel-718 and Hastelloy-X. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Additive Manufacturing, ICME |