Results 61 to 70 of about 6,572 (196)

First-principles calculation of phase equilibrium of V-Nb, V-Ta, and Nb-Ta alloys [PDF]

, 2012
In this paper, we report the calculated phase diagrams of V-Nb, V-Ta, and Nb-Ta alloys computed by combining the total energies of 40–50 configurations for each system (obtained using density functional theory) with the cluster expansion and Monte Carlo ...
Panigrahi, B. K., Ravi, C., Valsakumar, M. C., van de Walle, Axel   +3 more
core   +1 more source

VNbCrMo refractory high-entropy alloy for nuclear applications

International Journal of Refractory Metals and Hard Materials, 2023
يتم البحث عن سبائك حرارية عالية الانتروبي (RHEAs) ذات نقاط انصهار عالية ومقطع عرضي منخفض امتصاص النيوترونات لمفاعلات الانشطار والاندماج من الجيل الرابع. تم استخدام أداة فحص حسابية عالية الإنتاجية، البحث عن السبائك والتنبؤ بها (ASAP)، لتحديد مرشحي RHEA الواعدين من أكثر من مليون تركيبة رباعية العناصر. تمت دراسة VNbCrMo RHEA المختارة من قبل CALPHAD للتنبؤ
P.A. Ferreirós, Sophia O. von Tiedemann, N. Parkes, D. Gurah, D.J.M. King, P. Norman, Mark R. Gilbert, Alexander J. Knowles   +7 more
openaire   +3 more sources

Alloying effect on the oxidation behavior of a ductile Al0.5Cr0.25Nb0.5Ta0.5Ti1.5 refractory high-entropy alloy

Materials Today Advances, 2020
Refractory high-entropy alloys (RHEAs) are widely studied because of their promising potential for ultrahigh-temperature applications. One key challenge towards the development of RHEAs as high-temperature structural materials is to concurrently achieve ...
S. Sheikh, L. Gan, A. Ikeda, H. Murakami, S. Guo   +4 more
doaj   +1 more source

Nanostructured multielement (TiHfZrNbVTa)N coatings before and after implantation of N+ ions (1018 cm 2 ): Their structure and mechanical properties [PDF]

, 2016
Multielement high entropy alloy (HEA) nitride (TiHfZrNbVTa)N coatings were deposited by vacuum arc and their structural and mechanical stability after implantation of high doses of N+ ions, 1018 cm 2 , were investigated. The crystal structure and phase
Abadias, G., Beresnev, V.M., Bondar, Oleksandr Viacheslavovych, Borba, S.O., Drodziel, P., Kassenova, L.G., Konarski, P., Plotnikov, S.V., Pohrebniak, Oleksandr Dmytrovych, Бондар, Олександр В`ячеславович, Бондарь, Александр Вячеславович, Погребняк, Александр Дмитриевич, Погребняк, Олександр Дмитрович   +12 more
core   +1 more source

Statistical data set for first-principles calculations of stacking fault energies in an AlNbTaTiV high entropy alloy

Data in Brief, 2021
High-entropy alloys (HEA), a new class of engineering alloy, are characterized by high concentrations of multiple main elements. These alloys have revealed a vast and largely unexplored compositional space that gives substantial promise for the discovery
Joshua D. Strother, Chelsey Z. Hargather
doaj   +1 more source

Ab initio modeling of the energy landscape for screw dislocations in body-centered cubic high-entropy alloys

, 2020
In traditional body-centered cubic (bcc) metals, the core properties of screw dislocations play a critical role in plastic deformation at low temperatures.
Asta, Mark, Ding, Jun, Ritchie, Robert O., Yin, Sheng   +3 more
core   +1 more source

Formation and Disruption of W-Phase in High-Entropy Alloys [PDF]

, 2016
High-entropy alloys (HEAs) are single-phase systems prepared from equimolar or near-equimolar concentrations of at least five principal elements. The combination of high mixing entropy, severe lattice distortion, sluggish diffusion and cocktail effect ...
Chung M. Fung, Justin R. Searle, Kirill V. Yusenko, Nicholas P. Lavery, Ronald N. Clark, Sephira Riva, Stephen G. R. Brown   +6 more
core   +2 more sources

Computational discovery of ultra-strong, stable, and lightweight refractory multi-principal element alloys. Part I: design principles and rapid down-selection

npj Computational Materials, 2023
Refractory metal-based multi-principal element alloys (MPEAs) are compelling materials for high-temperature (1000–2000 K) structural applications. However, only a minuscule fraction of their vast and heterogeneous compositional design space has been ...
Kate L. M. Elder, Joel Berry, Brandon Bocklund, Scott K. McCall, Aurélien Perron, Joseph T. McKeown   +5 more
doaj   +1 more source

Supporting data for senary refractory high-entropy alloy Cr MoNbTaVW

Data in Brief, 2015
This data article is related to the research paper entitled "senary refractory high-entropy alloy Cr x MoNbTaVW [1]". In this data article, the pseudo-binary Cr-MoNbTaVW phase diagram is presented to show the impact of Cr content to the senary Cr-MoNbTaVW alloy system; the sub-lattice site fractions are presented to show the disordered property of the ...
B. Zhang, M.C. Gao, Y. Zhang, S.M. Guo
openaire   +3 more sources

Hexagonal High-Entropy Alloys

, 2014
We report on the discovery of a high-entropy alloy with a hexagonal crystal structure. Equiatomic samples in the alloy system Ho-Dy-Y-Gd-Tb were found to solidify as homogeneous single-phase high-entropy alloys.
Feuerbacher, Michael, Heidelmann, Markus, Thomas, Carsten   +2 more
core   +1 more source