| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys II
|
| Presentation Title |
Temperature-dynamic Phase-field Modeling of Hot Isostatic Pressing for Joining Dissimilar Metals |
| Author(s) |
Albert C. Lin, Yongfeng Zhang, Xiaoyuan Lou |
| On-Site Speaker (Planned) |
Albert C. Lin |
| Abstract Scope |
Hot isostatic pressing (HIP) is a novel manufacturing method that has demonstrated the ability to manufacture components with mechanical properties exceeding those created traditionally due to superior microstructure and chemistry control. The mechanical performance of HIPed materials depends on interdiffusion and secondary phase formation at the interface. Here, a phase-field model is constructed in the MOOSE framework to quantitatively simulate interdiffusion and secondary phase formation during HIP of 316L austenitic and A508 ferritic steels. The free energies of both phases are taken from CALPHAD and interpolated with a novel approach to improve numerical flexibility and solving efficiency. With mobilities and secondary phase nucleation parameters taken from literature, this model demonstrates the capability to quantitively model dynamic evolution of microstructure and chemistry during non-isothermal HIP cycles. This model, validated against experimental samples, serves as a framework for additional modeling of carbide formation, densification, and other critical issues in HIP. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Iron and Steel |