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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Simulations/Experiments Integration for Next Generation Hypersonic Materials
Presentation Title Degradation Resistance of Refractory Multi-principal Element Alloys for Extreme Environments
Author(s) Jibril Shittu, Connor Rietema, Michael Juhasz, Zachary Sims, Hunter Henderson, Alexander Baker, Kate Elder, Joel Berry, Aurélien Perron, Brandon Bocklund, Thomas Voisin, Scott Mccall, Joseph Mckeown
On-Site Speaker (Planned) Jibril Shittu
Abstract Scope With a renewed interest in advancing the capability of materials for extreme conditions, tailoring multi-principal element alloys (MPEAs) to achieve ultra-high strength and degradation resistance are of paramount importance. Exploiting the wider compositional landscape of MPEAs allows tailoring fundamental metallurgical properties such as microstructure, phase stability, thermal conductivity, and the coefficient of thermal expansion needed to develop degradation resistant alloys. This presentation introduces candidate MPEAs that were experimentally confirmed to exhibit improved thermal transport properties, strength, tribological resistance, and oxidation resistance at room temperatures and elevated temperatures. Highlights of this study promotes the potential of utilizing MPEAs for harsh environments by characterizing their retained mechanical properties at elevated temperatures, and extended service life when compared to current structural materials. Prepared by LLNL under Contract DE-AC52-07NA27344.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, High-Temperature Materials, Mechanical Properties

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

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