About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Beyond the Beam III
|
Presentation Title |
Mesoscale Simulation of Cold Spray Microstructure Formation |
Author(s) |
Theron M. Rodgers, Jacob Mahaffey |
On-Site Speaker (Planned) |
Theron M. Rodgers |
Abstract Scope |
Cold spray deposition is a promising method of fabricating coatings and performing structural repairs with minimal heating of the deposited material or substrate. Cold spray coatings feature a complex microstructure that differs from both bulk materials and coatings generated by melting-based thermal spray processes (plasma spray, HVOF, etc). Significant progress in understanding single-particle impact dynamics has been made using hydrodynamic and molecular dynamics simulations, but there are no methods capable of simulating coating formation from repeated (> 1,000) particle impacts. Here we introduce a 3D rules-based simulation method for the generation of full-thickness synthetic coating microstructures. The method is based on a model developed for plasma spray processes but incorporates substrate deformation and erosion. In this presentation, the method will be introduced, its ability to simulate different deposition regimes discussed, and a comparison with experimental microstructures performed. SNL is managed and operated by NTESS under DOE NNSA contract DE-NA0003525 |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Surface Modification and Coatings, Computational Materials Science & Engineering |