About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Hume-Rothery Symposium on Connecting Macroscopic Materials Properties to Their Underlying Electronic Structure: The Role of Theory, Computation, and Experiment
|
Presentation Title |
Building a Diffusion Mobility Database for γ/γ' Co-superalloys |
Author(s) |
Carelyn E. Campbell, Kil-won Moon, Greta Lindwall |
On-Site Speaker (Planned) |
Carelyn E. Campbell |
Abstract Scope |
Building on a previously developed Ni-based diffusion mobility database and using a newly developed Co-based thermodynamic database, a new Co-based diffusion database that includes Co-Al-W-Ni-Cr-Ta-Ti is presented. Available literature data, first-principal simulation data, and new experimental and computational diffusion data are combined to construct this multicomponent diffusion mobility description. Diffusion couple stacks are used to obtain additional diffusion mobility data for 9 binary and 14 ternary systems at three different temperatures. The diffusion couple composition profiles are analyzed and then used to optimize the FCC phase mobility parameters. Specific results for these optimizations will be presented for the Co-Al-W-Ni, Co-Al-Ni-Cr and Co-Al-Ni-Ta systems. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Temperature Materials, Modeling and Simulation, Other |