ProgramMaster Logo
Conference Tools for 2020 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 2020 TMS Annual Meeting & Exhibition
Symposium Materials Design Approaches and Experiences V
Presentation Title Oxidation Resistant Refractory Metal High Entropy Alloys for Ultrahigh Temperature Structural Applications
Author(s) Bronislava Gorr, Steven Schellert, Franz Mueller, Stephan Laube, Hans Chen, Alexander Kauffmann, Hans-Juergen Christ, Martin C. Heilmaier
On-Site Speaker (Planned) Martin C. Heilmaier
Abstract Scope We report on our development status of refractory metal based high entropy alloys for ultrahigh temperature structural engineering materials. Different alloys within the system Nb-Ta-Mo-Cr-Ti-Al were synthesized by arc melting. Applying suitable homogenization treatment leads to the presence of a single phase with B2 order at low temperatures T which is in some alloys responsible for a brittle-to-ductile transition occurring between 600 and 1000 °C. Solid solution hardening below BDTT is predicted using the atomic size difference as main relevant parameter. Elevated temperature behavior was investigated utilizing compression creep (T = 900…1100 °C) and continuous and cyclic oxidation tests in laboratory air in an even wider range of T between 500 and 1500 °C. Promising properties were noted, in particular TaMoCrTiAl forms a protective CrTaO<sub>4</sub> scale which exhibits very low growth rates and is well adherent. Thus, it is responsible for low weight gains and the absence of catastrophic oxidation.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Accelerated Design of High-temperature Alloys with Data Analytics and Supercomputing
Accelerated Materials Design Strategy for Additive Manufacturing at Access e.V.
Alloy Design Through Sequential Learning
Application of Computational Tools in Designing Ni-base Single-crystal Superalloys
Design of Cobalt Base Single Crystal Superalloys
Design of Ni-Co-Ru Multi-principal Elements Alloys
Design Principles for Complex, Concentrated Alloys (CCAs)
Designing for Local Phase Transformation Strengthening in Nickel Based Superalloys
Development of Cast Alumina-forming Austenitic Stainless Steels and their Implementation In High Temperature Industrial Applications
Development of HAYNES® 233® Alloy
Development of Ni-based Alloys For Transportation Applications
Development of Nuclear Grade Wrought FeCrAl Alloys for Accident Tolerant Fuel Cladding
Domain-guided ML Tool for Designing New Fe-9Cr Steels
Effect of Vibration on Residual Stress of a Stiffened Steel Plate During Welding: A Numerical Study
Equilibrium Segregation and Localized Phase Transition at Stacking Faults in Ni-based Superalloys
Further Developments of CALPHAD Based Tools for Accelerating Alloy Design
Genomic Materials Design: Making CyberSteels Fly
High-throughput CALPHAD Calculation for Accelerated Materials Design
Improved 3rd Generation Single Crystal Superalloy CMSX-4® Plus (SLS) – a Study of Evolutionary Alloy Development
Interface based Alloy Design
L-28 (Invited): Integrated Study of First-principles Calculations and Experimental Measurements for Hydrogen Effect on FCC to HCP Martensitic Transformation
Material and Process 4.0: Model-Based Material and Process Development
Materials Discovery and Design using Heritage Data
Materials Parameters in Designing FCC High-entropy Alloys
Materials, Manufacturing, and Design: Perspectives on New and Nascent Techniques
Microstructural Design for Advanced Aluminium and Magnesium Alloys
Microstructure and Cracking Susceptibility of Continuously Cast Slabs of 3rd Generation Advanced High Strength Steels
New Alloy Design Strategy via Non-conventional Phase Transformation Pathways
Non-equilibrium Interfacial Solute Segregation as a Thermal Stabilization Mechanism in Al-Cu Alloys
On the Use of Multiscale Modeling Strategies to Design Precipitation-hardened Al Alloys
Oxidation Resistant Refractory Metal High Entropy Alloys for Ultrahigh Temperature Structural Applications
Precipitate-mediated Dislocation Transformer in Ni-base Superalloys
Strength Prediction in a Quaternary Mg Alloy System Using a Multi-scale Optimization Framework
Synergistic Nano-precipitation in Mn-stabilized Austenitic Steels
The FaMUS Methodology for Quantify Materials Understanding and Its Application to the NSUF Research Portfolio

Questions about ProgramMaster? Contact programming@programmaster.org