ProgramMaster Logo
Conference Tools for 2023 TMS Annual Meeting & Exhibition
Login
Register as a New User
Help
Submit An Abstract
Propose A Symposium
Presenter/Author Tools
Organizer/Editor Tools
About this Abstract
Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Simulations/Experiments Integration for Next Generation Hypersonic Materials
Presentation Title Computational Discovery and Experimental Validation of Ultra-high Strength BCC Refractory Metal-based MPEAs for Extreme Environments
Author(s) Kate L. M. Elder, Joel Berry, Aurelien Perron, Brandon Bocklund, Hunter Henderson, Jibril Shittu, Connor Rietema, Zachary Sims, Scott McCall, Joseph McKeown
On-Site Speaker (Planned) Kate L. M. Elder
Abstract Scope Body centered cubic (BCC) refractory metal-based multi-principal element alloys (MPEAs) are known for maintaining high yield strength at elevated temperatures, an important property for operation in extreme aerodynamic and aerothermal conditions. To exploit the enhanced mechanical properties, tailored MPEAs are needed with both strength and BCC stability sufficient for a given service requirement. However, strength and stability vary drastically with temperature, number of elements, and composition of elements. Through analytical calculations, we investigate virtually all MPEAs from the Al-Cr-Fe-Hf-Mo-Nb-Ta-Ti-V-W-Zr family with up to eleven elements to identify candidates with high yield strength or specific yield strength. These results are filtered with CALPHAD phase stability predictions to ensure sufficient BCC stability or metastability at high temperatures. Select compositions predicted to maintain high strength or specific strength and sufficient BCC stability are manufactured and mechanically tested to validate the tailored MPEA design process. Prepared by LLNL under Contract DE-AC52-07NA27344.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Mechanical Properties, Modeling and Simulation

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Accelerating a Digital Twin of Direct Energy Deposition Additive Manufacturing
Composite Metal/Ceramic Coatings with Exceptional Thermal Shock Resistance
Computational Design of Ni-based SX Superalloys: A Critical Assessment of Machine-learned and Thermodynamic Models in View of Experimental Properties
Computational Discovery and Experimental Validation of Ultra-high Strength BCC Refractory Metal-based MPEAs for Extreme Environments
Degradation Resistance of Refractory Multi-principal Element Alloys for Extreme Environments
High-throughput CALPHAD Exploration of Multi-principal Element Alloy (MPEA) Space for Targeted Properties and Structure
How Do You Integrate Both Simulations and Experiments into a Materials Discovery Optimization Campaign? A Case Study in Multi-fidelity Optimization
Material Design by Additive Manufacturing of Multi-component Metal Alloys
Modeling Thermomechanical Buckling in Combined Extreme Environments
On the Deformation Processes of BCC Refractory Complex Concentrated Alloys
Phase Transforming Metal-ceramic Multilayers for Ultrahigh Temperatures
Simultaneous Bayesian Calibration of Strength, Kinetics, and Phase Boundaries

Questions about ProgramMaster? Contact programming@programmaster.org