About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Atomistic Simulations of Active Brazing |
Author(s) |
Eric Wilson Rothchild, Ian Winter, Michael Chandross, Jeffrey Horner, Jaideep Ray, Edward Arata, Ping Lu, Scott Roberts, David Kemmenoe, Anthony McMaster, Anne Grillet |
On-Site Speaker (Planned) |
Eric Wilson Rothchild |
Abstract Scope |
Active braze filler metals are used for joining materials that would not usually be wetted by a traditional braze. In active brazing, reactions occurring at the solid-liquid interface alter the interfacial free energies, and consequently wetting angles. Braze joints can fail because of runout of the filler metal during brazing, which is directly controlled by the changing interfacial free energies over time during the braze process. Wetting during the braze process is difficult to measure experimentally but may be calculated using atomistic simulations. Here we simulate brazing stainless steel to alumina with an AgZr alloy with both an EAM potential and a newly parameterized ReaxFF potential. For this system, we will present results showing wetting behavior, interface reactions and diffusion in the liquid. These results are fed into continuum scale models to be compared to experiments. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, |