| About this Abstract |
| Meeting |
2018 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
|
| Presentation Title |
Mesoscale Modeling of Single Particle Impact Induced Microstructural Evolution during Cold Spray of Aluminum Powders |
| Author(s) |
Sumit Athikavil Suresh, Jie Chen, Benjamin Bedard, Alexis Ernst, Tyler Flanagan, Seok-Woo Lee, Mark Aindow, Harold Brody, Victor Champagne, Avinash Dongare |
| On-Site Speaker (Planned) |
Sumit Athikavil Suresh |
| Abstract Scope |
Cold spray process is a powder deposition technique in which a streamline of metal powders are impacted at high velocities onto a metal substrate. The consequent adhesion of the particle and the substrate is a complex process that involves generation of heat and defects at the vicinity of the impact region. The focus of this work is to employ a novel, computationally efficient mesoscale model called Quasi Coarse Grained Dynamics (QCGD) to simulate the cold spray process for polycrystalline aluminum. Single particle impact simulations were performed for a range of impact velocities and the resultant temperature evolution in the system was investigated. The impact velocity variations result in variations in deformation mechanisms and the role of such mechanisms in the particle and substrate related to "jetting" are examined. The effects of Mg2Si precipitate interactions in an aluminum alloy using classical molecular dynamics (MD) simulations will also be presented. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |