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Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Refractory Metals
Presentation Title High-throughput Engineering of Oxidation Behavior in complex refectory alloys
Author(s) Daniel Sauceda, Prashant Singh, Raymundo Arroyave
On-Site Speaker (Planned) Daniel Sauceda
Abstract Scope High-temperature mechanical response makes refractory alloys a potential candidate for replacing existing superalloys. However, the technological application of refectories is limited by severe oxidation. We present an automated machine-learning-based framework for high-throughput assessment of oxidation behavior through the evaluation of thermodynamic stability, chemical activity, reaction products (phases), phase fractions of competing phases, as well as the survivability of the parent alloys. Two extreme examples were chosen to establish the applicability of approach (i) refractory-based ceramics (MAX phases) and (ii) refractory high-entropy alloys. The predicted oxidation behavior of Ti2AlC MAX phase shows good agreement with our experiment performed on wedge samples. The proposed approach could guide the experimental discovery and optimization of structural materials with superior high-temperature performance under oxidizing conditions.
Proceedings Inclusion? Planned:
Keywords Computational Materials Science & Engineering, Machine Learning, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Bending Creep Deformation of ODS MoLa with 0.6 vs 1.1 wt.%La
Design of BCC high-entropy alloys with low neutron absorption cross-section
Design of MoWTaTiZr Refractory Multi-principal Element Alloys
Development of Heat-Treatable Crss-Cr3Si-based Alloys: Microstructure, Oxidation, and Creep
Development of novel chromium-superalloys strengthened by B2 intermetallic precipitates
Effect of heating rate and substrate on the oxidation behavior of hafnium aluminum diboride thin films
Flexible powder production for additive manufacturing of refractory metals and alloys
Flow behavior and associated microstructures of niobium at 1200 to 1500°C
Grain boundary doping as effective method to improve mechanical properties in ultra-fine grained tungsten
Grain Boundary Segregation Engineering in Technically Pure Molybdenum Examined via Three-point Bending Tests
High-throughput Engineering of Oxidation Behavior in complex refectory alloys
Hydrogen Reduction of Cobalt(II,III) oxide to make sub-micron and micron size cobalt metal powder for WC-Co synthesis
NanoPhase Separation Sintering in Mo and Mo-W Based Systems
Nanostructured tungsten alloys for nuclear fusion
Oxidation behavior of Mo-Si-B-Al alloys at elevated temperature
Platinum-based superalloys: Combating high temperatures and aggressive environments
Realizing sub-micron tungsten and tungsten composite microstructures via deformable punch spark plasma sintering
Refractory High Entropy Alloys for Applications in Extreme Environments
Studies on the phase formation of cobalt contacted with zinc vapour
Sustainability-based Selection of Materials for Refractory High Entropy Alloys
Tensile Properties of Molybdenum & ODS MoLa Sheet at Elevated Temperatures
The influence of impurities on the interfacial chemistry of niobium – alumina high-temperature refractories
The oxidation behavior of the eutectic alloy Mo-20Si-52,8Ti in dry and wet atmospheres
Thermal stability of thin rolled potassium-doped tungsten sheets at temperatures between 1100 C and 1400 C
Thermodynamic assessment of the V-Ti-B system
Tungsten grain optimization and composite fabrication for use in fusion reactors

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