Results 21 to 30 of about 965 (253)
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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Temperature-Dependent Configurational Entropy Calculations for Refractory High-Entropy Alloys [PDF]
Journal of Phase Equilibria and Diffusion, 2021 AbstractThe cluster expansion formalism for alloys is used to construct surrogate models for three refractory high-entropy alloys (NbTiVZr, HfNbTaTiZr, and AlHfNbTaTiZr). These cluster expansion models are then used along with Monte Carlo methods and thermodynamic integration to calculate the configurational entropy of these refractory high-entropy ...
Chiraag M Nataraj +2 more
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Oxidation behavior of NbMoTaWV refractory high entropy alloy at 1000-1400 ℃
Cailiao gongcheng, 2023 The high temperature oxidation behavior of NbMoTaWV refractory high entropy alloy(RHEA) prepared by arc melting was studied by static oxidation experiment, XRD and FSEM.
DING Yi +4 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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New refractory high entropy alloys
IOP Conference Series: Materials Science and Engineering, 2019 Abstract The paper presents researches on the microstructure and mechanical properties of a new types of refractory high entropy alloys, which can be used for thermal engine components as well as for military incendiary bullet. The main characteristics required for such applications are high compression resistance, microstructural ...
I Voiculescu +7 more
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AIP Advances, 2023 The effect of minor additions of substitutional elements such as Al, Cu, Mn, and Fe on the room-temperature (RT) and elevated-temperature hardness of a single bcc phase Hf20Nb31Ta31Ti18 refractory high entropy alloy is studied here. Interestingly, 2.5 at.
Xiaolong Li +4 more
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Synthesis and corrosion behavior of Mo15Nb20Ta10Ti35V20 refractory high entropy alloy
Materials & Design, 2023 The Mo15Nb20Ta10Ti35V20 refractory high entropy alloy with BCC structure was prepared by vacuum arc melting. The synthesized Mo15Nb20Ta10Ti35V20 demonstrated better corrosion resistance compared to 316 stainless steel in chloride corrosion environment ...
Yu Gao +7 more
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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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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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A review on High-Temperature Applicability: A milestone for high entropy alloys
Engineering Science and Technology, an International Journal, 2022 Due to the limitations of utilizing pure metals, several elements were combined to make an alloy in order to provide and improve certain features as needed for the application. The concept of alloy making has diversified over a thousand years.
Sheetal Kumar Dewangan +5 more
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