Results 21 to 30 of about 991 (250)
Effect of Ti on defects in Nb-Mo-Ta-W high-entropy alloy prepared by laser metal deposition
Journal of Aeronautical Materials, 2023 The Nb-Mo-Ta-W series refractory high-entropy alloys with composition recombination design were manufactured by laser metal deposition process. The phase structure, defects and microstructure of（NbMoTa）90W10 and（NbMoTaTi）90W10 high-entropy alloys were ...
LI Qingyu +5 more
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Engineering, 2023 Refractory high-entropy alloys (RHEAs) have promising applications as the new generation of high-temperature alloys in hypersonic vehicles, aero-engines, gas turbines, and nuclear power plants.
Yixing Wan +7 more
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Corrosion behavior of Hf0.5Nb0.5Ta0.5Ti1.5Zr refractory high-entropy in aqueous chloride solutions
Electrochemistry Communications, 2019 The Hf0.5Nb0.5Ta0.5Ti1.5Zr refractory high-entropy alloy with excellent corrosion resistance in the 3.5 wt% NaCl solution is identified in this work. This refractory high-entropy alloy exhibits much better general corrosion resistance than that of the ...
Qiongyu Zhou +5 more
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Design of Refractory High-Entropy Alloys
JOM, 2015 This report presents a design methodology for refractory high-entropy alloys with a body-centered cubic (bcc) structure using select empirical parameters (i.e., enthalpy of mixing, atomic size difference, Ω-parameter, and electronegativity difference) and CALPHAD approach.
M. C. Gao +5 more
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Refractory high-entropy alloys: A review of preparation methods and properties
工程科学学报, 2021 Alloying is one of the main ways to achieve desirable properties in materials. The design concept is based on one or two metal elements, supplemented with multiple trace elements to achieve altered or optimized properties.
Le ZONG +3 more
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Recent Progress with BCC-Structured High-Entropy Alloys
Metals, 2022 High-entropy alloys (HEAs) prefer to form single-phase solid solutions (body-centered cubic (BCC), face-centered cubic (FCC), or hexagonal closed-packed (HCP)) due to their high mixing entropy.
Fangfei Liu, Peter K. Liaw, Yong Zhang
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Senary Refractory High-Entropy Alloy HfNbTaTiVZr
Metallurgical and Materials Transactions A, 2015 Discovery of new single-phase high-entropy alloys (HEAs) is important to understand HEA formation mechanisms. The present study reports computational design and experimental validation of a senary HEA, HfNbTaTiVZr, in a body-centered cubic structure. The phase diagrams and thermodynamic properties of this senary system were modeled using the CALPHAD ...
M. C. Gao, B. Zhang, S. Yang, S. M. Guo
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Research Progress of Refractory High Entropy Alloys: A Review
Chinese Journal of Mechanical Engineering, 2022 Owing to superior comprehensive performance than conventional superalloys at high temperature, refractory high entropy alloy (RHEA) is becoming a promising candidate for the next generation high-temperature material.
Xiaochang Xie +8 more
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Manufacturing Review, 2023 Thermo-mechanical processing of refractory high entropy alloys (RHEAs) at high temperatures is very important. It is an effective method of modifying the microstructure, properties, and shaping into final components after casting.
Bamisaye Olufemi Sylvester +5 more
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Alloy design for intrinsically ductile refractory high-entropy alloys [PDF]
Journal of Applied Physics, 2016 Refractory high-entropy alloys (RHEAs), comprising group IV (Ti, Zr, Hf), V (V, Nb, Ta), and VI (Cr, Mo, W) refractory elements, can be potentially new generation high-temperature materials. However, most existing RHEAs lack room-temperature ductility, similar to conventional refractory metals and alloys.
Saad Sheikh +8 more
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