Results 41 to 50 of about 32,641 (319)

Computational and experimental investigation of refractory high entropy alloy Mo15Nb20Re15Ta30W20

Journal of Materials Research and Technology, 2020
In this study, refractory high entropy alloys (RHEAs) Mo20Nb20Re20Ta20W20, Mo15Nb20Re15Ta30W20, and Mo15Nb20Re10Ta35W20 were studied by applying the first-principles density functional theory (DFT) method.
Uttam Bhandari, Congyan Zhang, Congyuan Zeng, Shengmin Guo, Shizhong Yang   +4 more
doaj   +1 more source

Ta-Nb-Mo-W refractory high-entropy alloys: anomalous ordering behavior and its intriguing electronic origin [PDF]

, 2018
From electronic-structure-based thermodynamic linear-response, we establish chemical ordering behavior in complex solid solutions versus how Gibbs' space is traversed -- applying it on prototype refractory A2 Ta-Nb-Mo-W high-entropy alloys.
Johnson, Duane, Johnson, Duane, Singh, Prashant, Smirnov, Andrei   +3 more
core   +4 more sources

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   +6 more sources

Oxidation Behaviour of Refractory (HfCo)_100−x(NbMo)_x High-Entropy Alloys with a bcc+B2 Structure

Applied Sciences, 2023
Herein, the oxidation behaviour of refractory (HfCo)100−x(NbMo)x (x = 0; 10; 25; 40; 75; 100 (at.%)) high-entropy alloys with a bcc+B2 structure subjected to cyclic oxidation at 1000 °C was studied. The single-phase B2-ordered HfCo alloy demonstrated the
Nikita Yurchenko, Evgeniya Panina, Sergey Zherebtsov, Nikita Stepanov   +3 more
doaj   +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

Influence of the thermal factor on the composition of electron-beam high-entropy ALTiVCrNbMo coatings [PDF]

, 2009
This paper reports results of studying the element and phase compositions of electron-beam coatings based on the high-entropy alloy AlTiVCrNbMo, depending on the deposition temperature (in the range of 300...700 °С).
Sobol, O. V., Barmin, A. E., Hryhorieva, S. V., Gorban, V. F., Vuets, A. E., Subbotin, A. V.   +5 more
core   +2 more sources

A single-phase bcc high-entropy alloy in the refractory Zr-Nb-Ti-V-Hf system

, 2018
We report on the production and characterization of a high-entropy alloy in the refractory Zr-Nb-Ti-V-Hf system. Equiatomic ingots were produced by arc and levitation melting, and were subsequently homogenized by high-temperature annealing. We obtained a
Feuerbacher, M., Lienig, T., Thomas, C.
core   +1 more source

Tuning phase-stability and short-range order through Al-doping in (CoCrFeMn)100-xAlx high entropy alloys [PDF]

, 2019
For (CoCrFeMn)$_{100-x}$Al$_{x}$ high-entropy alloys, we investigate the phase evolution with increasing Al-content (0 $\le$ x $\le$ 20 at.%). From first-principles theory, the Al-doping drives the alloy structurally from FCC to BCC separated by a narrow
Balasubramanian, Ganesh, Balasubramanian, Ganesh, Johnson, Duane, Johnson, Duane, Marshal, Amalraj, Pradeep, K. G., Sharma, Aayush, Singh, Prashant, Smirnov, A. V.   +8 more
core   +4 more sources

Current status and prospects in machine learning-driven design for refractory high-entropy alloys

Cailiao gongcheng
Due to excellent comprehensive properties such as high strength, high hardness, and excellent high-temperature oxidation resistance, the refractory high-entropy alloys have broad application prospects and research value in the fields of aerospace and ...
GAO Tianchuang, GAO Jianbao, LI Qian, ZHANG Lijun   +3 more
doaj   +1 more source

Creep behavior of a precipitation-strengthened A2-B2 refractory high entropy alloy

Acta Materialia
Refractory compositionally complex alloys consisting of a disordered A2 matrix and ordered B2 precipitates mimic the microstructures of state-of-the-art, Ni-based superalloys with A1 matrix and L1 2 precipitates.
Liu Yang, Sandipan Sen, D. Schliephake, R. J. Vikram, S. Laube, Aparajita Pramanik, A. Chauhan, S. Neumeier, M. Heilmaier, A. Kauffmann   +9 more
semanticscholar   +1 more source