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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Thermal Property Characterization, Modeling, and Theory in Extreme Environments
Presentation Title Thermal Analysis of Oxygen-doped Refractory High Entropy Alloys (RHEA)
Author(s) Koray Iroc, Eda Aydogan, Eren Yunus Kalay
On-Site Speaker (Planned) Koray Iroc
Abstract Scope High Entropy Alloys (HEA) are trending structural materials with unusual structures, which leads them to have superior properties. Outstanding mechanical, corrosive and thermal properties make them one of the best candidates for refractory applications. But low room temperature ductility is restraining the advancements in this area. It is recently revealed that little amount of oxygen (2 at%) is increasing the strength and ductility simultaneously. Designed composition Ti25Zr35Hf5Nb20Ta15 shows yields strength around 1200 MPa and ductility above 50%. But there is not an extensive study on thermal properties of these HEAs. In this study, thermal properties of oxygen-doped RHEAs have been investigated. Relationship between microstructure and thermal properties are conducted by ThermoCalc software, in-situ TEM and in-situ XRD techniques.
Proceedings Inclusion? Planned:
Keywords High-Entropy Alloys, Environmental Effects, Characterization

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

First-principles Modeling of High Temperature Irradiation Resistant Thermocouple (HTIR-TC) Performance and Oxidation
A Thermodynamically-consistent Model for Heat Transport in Heterogeneous Solids
An Experimentally Validated Mesoscale Model for the Effective Thermal Conductivity of U-Zr Fuels
Atmosphere Controlled Thermogravimetric Analysis as a Tool to Screen, Test and Qualify Advanced Fuels under Extreme Conditions
Connection between Thermal Conductivity Degradation and Microstructural Changes in Graphite Due to Neutron Irradiation
Defect Density and Annealing Kinetics Estimation Using Thermal Diffusivity Measurements from Transient Grating Spectroscopy
Energy Balance Investigation of Close-coupled Optimized-pressure Gas Atomization Pour-tube Design Geometry to Prevent Melt Freeze-off
Enhanced Thermal Conductivity for Sol-gel Derived Fuel Candidates
From Crystalline to Amorphous Materials: Mechanisms for Thermal Conductivity Reduction
Ion-irradiation-induced Structural Disorder and Thermal Conductivity Changes of Intermetallic Compounds
Mesoscale Modeling of the Effective Thermal Conductivity of a UO2-Mo Composite Nuclear Fuel
Multiphysics Mesoscale Modeling of Ablative Thermal Protection Systems
Non-magnetic Kondo Effect in Eelta-UZr2
Performance of UO2 Reactor Fuel with High Thermal Conductivity Additives
Phase-dictated Thermal Conductivity Response in Carbon Systems Exposed to Ion Irradiation
Phonon Transport in ThO2 from Neutron Scattering and First-principles Computation
Theory of Non-equilibrium Thermal Transport at High Temperatures from First-principles
Thermal Analysis of Oxygen-doped Refractory High Entropy Alloys (RHEA)
Thermal and Mechanical Properties of Hafnon (HfSiO4), Theory and Experiments
Thermal Behaviors of Correlated Insulators ThO2 and SmB6
Thermal Conductivity and Heat Transport Processes of Ion Irradiated and Laser Heated Solids
Thermal Conductivity Degradation from Irradiation-induced Microstructural Defects in Single Crystal Thorium Dioxide
Thermal Gradient Effect on the Transport Properties of Helium and Intrinsic Defects in Tungsten
Thermal Stability of Metallic Multilayers with TripleJjunctions
Thermal Transport Behavior of U-50Zr at the Mesoscale: Before and After Irradiation
Thermal Transport in Irradiated ThO2: A Combined Experimental and Phonon Level Investigation
Ultra-high Lattice Thermal Conductivity and the Effect of Pressure in Superhard Hexagonal BC2N

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