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Strengthening mechanisms in CrMoNbTiW refractory high entropy alloy
Materials Science and Engineering: A, 2021Abstract We have investigated the strengthening mechanisms of as-cast CrMoNbTiW BCC refractory high entropy alloy (RHEA). The cast RHEA was deformed at a constant strain rate of 10−3 s−1 and a temperature range of 1100–1300 °C. The various factors contributing to the overall strength of the cast alloy are explored with comprehensive experimental ...
Lavanya Raman +8 more
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Thermodynamic properties of refractory high entropy alloys
Journal of Alloys and Compounds, 2016Abstract As the potential radiation damage-tolerant materials, Hf Nb Ta Ti Zr high entropy alloys (HEAs) attract considerable attention, whereas the thermodynamic parameters are very limited at different temperatures and under high pressure. In this work we combine the ab initio calculations of supercell with the quasi-harmonic Debye-Gruneisen ...
Hongquan Song +2 more
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WEDM machining of MoNbTaTiZr refractory high entropy alloy
CIRP Journal of Manufacturing Science and Technology, 2022Refractory high entropy alloys (RHEAs) have shown great promise for a multitude of advanced engineering applications due to their high mechanical stability from cryogenic temperatures to 1600 °C. However, the low ductility they exhibit at room temperature limits their machinability when traditional machining techniques are used.
Günen, Ali +6 more
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Accelerated oxidation in ductile refractory high-entropy alloys
Intermetallics, 2018Refractory high-entropy alloys (RHEAs) are promising candidates for new-generation high temperature materials, but they generally suffer from room temperature brittleness and unsatisfactory high-temperature oxidation resistance. There currently lack efforts to address to these two critical issues for RHEAs at the same time.
Saad Sheikh +10 more
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Refractory High Entropy Alloys (RHEAs)
The aerospace sector is constantly looking for innovative materials that can survive harsh conditions like high temperatures. Due to their outstanding mechanical properties under such conditions, the introduction of Refractory High- Entropy Alloys (RHEAs) is gaining prominence in this pursuit.openaire +1 more source
Structure and Properties of Refractory High-Entropy Alloys
2014Many exciting properties such as high hardness, high strength, wear resistance and oxidation resistance are generally observed due to the distorted lattice and slow diffusion rate in high-entropy alloys (HEAs). In this study, HEAs based on refractory metals like Hf, Mo, Nb, Ta, Ti, W and Zr are studied with the goal to develop both ambient and high ...
Soumyadipta Maiti, Walter Steurer
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Phase Transformations in Refractory High Entropy Alloys
High entropy alloys (HEAs) based on refractory elements have shown a great potential for high temperature structural applications. In particular, the ones containing Al, exhibits a microstructure similar to the γ-γ' in Ni-based superalloys. While these alloys exhibit impressive strengths at room temperature (RT) and at elevated temperatures, the ...openaire +2 more sources
The effects of irradiation on CrMnFeCoNi high-entropy alloy and its derivatives
Progress in Materials Science, 2022Zhouran +2 more
exaly
Rational design of septenary high-entropy alloy for direct ethanol fuel cells
Joule, 2023Yang Yang
exaly