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Meeting MS&T23: Materials Science & Technology
Symposium High Temperature Corrosion and Degradation of Structural Materials
Presentation Title High-throughput Investigation of Microstructure & High Temperature Oxidation Behavior of CrMoNbTaW
Author(s) Md Imran Noor, Paul F. Rottmann
On-Site Speaker (Planned) Md Imran Noor
Abstract Scope The search for refractory multi-principal element alloys (RMPEAs) for high temperature applications faces a major challenge in explaining their oxidation behavior due to complex elemental interactions during processing. RMPEAs gain mass by forming an oxide layer as the temperature increases, followed by intergranular oxidation that leads to pesting, and finally lose mass due to the failure of the protective oxide layer. Understanding the nature of the protective oxide layer and the dynamics of oxygen ingress is crucial to explain the structure-property-performance relationships of RMPEAs. In this study, a gradient thin film of CrMoNbTaW was deposited on sapphire using RF magnetron sputtering and analyzed with a range of characterization techniques before and after annealing at temperatures ranging from 800C to 1400C for up to 24 hours. The phase (XRD), composition (SEM-EDS, XPS), microstructure (SEM), oxide phase and morphology (TEM) and mechanical (nanoindentation) properties were characterized to understand the oxidation mechanism.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Ablation Resistance of Ultra-high Temperature Polymer-derived Ceramic-matrix Composites
Comparison and Mechanism of High-temperature Oxidation Behavior of Additively Manufactured Haynes 282 to Wrought Haynes 282 in Direct-fired Supercritical CO2 Power Cycle Environments
Corrosion Behavior of Compositionally Gradient Additively Manufactured 316L Stainless Steel Doped with Hafnium in Eutectic NaCl-MgCl2 Molten Salt at 700 °C
Cyclic Oxidation of NbTiZr Using a Resistive Heating System
Development of Ablation-Resistant, High Emittance Coatings for Carbon/Carbon Composites for Hypersonic Application
Discovery of High Entropy Rare Earth Disilicates for Extreme Environments
Effect of Gaseous Environments and Alloy/Coatings Composition on the Mixed Deposit-induced Degradation of Advanced Alloys/Coatings
Effect of Temperature and Impurities on the Oxidation Behavior of Ni-based Alloys in Hot CO2-rich Gases
Environmental Creep Behavior of Austenitic Steels in CO2
Evaluating Corrosivity of Molten Salts Using Halide Optical Basicity Index
Evolution of Interfacial Morphogenesis and Stability of Alloys in Harsh Environments
High-throughput Investigation of Microstructure & High Temperature Oxidation Behavior of CrMoNbTaW
High Temperature Materials Study for HCl+SO2 and HF+P2O5 Environments
High Temperature Oxidation Behavior of Zr vs ZrC
Impact of Environmental Barrier Coating Chemistries on the Oxidation of Si-base Materials
Intermediate Temperature Oxidation of Melt Infiltrated SiC/BN/SiC CMCs
Investigating Fifth Oxide Effect on CMXAS Glass Properties
Liquid Metal Embrittlement Assessment of F82H in Li
On the Thermodynamic Properties of CrTaO4: A Computational Perspective
Oxidation and Hot Corrosion Performance of Fe-Cr-Ni Based Alloys
Oxidation of Additively Manufactured AM-ZrB2-30vol%SiC under CO2 Exposure
Oxidation of B2-(Ru,Pd)Al Alloys for Bond Coat Applications
Solid Particle Erosion of Ceramic Matrix Composites and Environmental Barrier Coatings: Current Progress and Future Direction
Stress Assisted Corrosion Behavior of Al0.1CrCoFeNi High Entropy Alloy in a Molten NaCl-Na2SO 4 Salt
Surface Coatings Providing Protection Against High Temperatures and Corrosion in the Production of Coke
T91 Boiler Tube Oxidation Performance and Oxide Spallation in Supercritical Steam Thermal Cycling Conditions
Thermophysical Properties of Xenotime Inspired Rare Earth Phosphate EBCs

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