Results 31 to 40 of about 965 (253)

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
openaire   +2 more sources

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

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

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, Samrand Shafeie, Qiang Hu, Johan Ahlström, Christer Persson, Jaroslav Veselý, Jiří Zýka, Uta Klement, Sheng Guo   +8 more
openaire   +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

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

Formability of NbMoTaNiCr refractory high entropy alloys by wire arc additive manufacturing

Fenmo yejin jishu
Based on the previous preparation of the refractory high-entropy alloy cable-type wire materials, the NbMoTaNiCr refractory high-entropy alloy cable-type welding wires were designed and developed. The NbMoTaNiCr refractory high-entropy alloys were formed
HUANG Shaofu, CHENG Lei, LIU Jian, ZENG Xiangling, ZHENG Yang, DU Xian   +5 more
doaj   +1 more source

Hydrogen Sorption Properties of a Novel Refractory Ti-V-Zr-Nb-Mo High Entropy Alloy

Hydrogen, 2021
High entropy alloys belong to a new and promising class of functional materials for solid-state hydrogen storage. In this context, a novel single-phase body centered cubic (bcc) high entropy alloy Ti0.30V0.25Zr0.10Nb0.25Mo0.10 was prepared.
Anis Bouzidi, Laetitia Laversenne, Guilherme Zepon, Gavin Vaughan, Vivian Nassif, Claudia Zlotea   +5 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Preparation and properties of quasi-spherical WMoTaTi refractory high entropy alloy powders

Fenmo yejin jishu, 2021
Mechanical alloying combined with the gas-solid fluidization technology was used to pre-alloy and modify the WMoTaTi elemental mixed powders to improve the powder morphology, sphericity, and flowability, basically meeting the requirements for 3D printing.
LIU Chang, CHEN Jia-nan, DING Wang-wang, YANG Jun-jun, CHEN Gang, QU Xuan-hui   +5 more
doaj   +1 more source