Thermodynamics and Kinetics of Refractory Multi-principal Element Alloys: An Experimental and Modeling Comparison

Thermodynamics and Kinetics of Refractory Multi-principal Element Alloys: An Experimental and Modeling Comparison

The search for structural alloys capable of ultrahigh temperature performance has led to the exploration of refractory multi-principal element alloys (RMPEAs). In this work, experimental results for solidification segregation and homogenization of two RMPEAs, NbTaTiW and MoNbTaTi, are compared to si...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2023-04, Vol.54 (4), p.1070-1076
Hauptverfasser: Puerling, R., Miklas, A., Coury, F. G., Philips, N. R., Mason, P., Peterson, N. E., Deal, A., Klemm-Toole, J., Clarke, A. J.
Format: Artikel
Sprache:eng
Schlagworte:
Alloying elements
Alloys
Brief Communication
Characterization and Evaluation of Materials
Chemistry and Materials Science
Heat
Homogenization
MATERIALS SCIENCE
Metallic Materials
Nanotechnology
Scanning electron microscopy
Simulation
Software
Solidification
Spectrum analysis
Structural Materials
Surfaces and Interfaces
Temperature
Thin Films
Trends
Ultrahigh temperature
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Zusammenfassung:The search for structural alloys capable of ultrahigh temperature performance has led to the exploration of refractory multi-principal element alloys (RMPEAs). In this work, experimental results for solidification segregation and homogenization of two RMPEAs, NbTaTiW and MoNbTaTi, are compared to simulations using the Scheil and DICTRA modules in Thermo-Calc ® . Scheil calculations accurately predict the observed solidification segregation, while DICTRA predicts general trends and can provide a minimum time to achieve homogenization at a given temperature.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-023-06980-7