Results 51 to 60 of about 32,641 (319)

Ab initio vibrational free energies including anharmonicity for multicomponent alloys

, 2019
A density-functional-theory based approach to efficiently compute numerically exact vibrational free energies - including anharmonicity - for chemically complex multicomponent alloys is developed. It is based on a combination of thermodynamic integration
Duff, Andrew Ian, Freysoldt, Christoph, Grabowski, Blazej, Ikeda, Yuji, Körmann, F.H.W., Neugebauer, Jörg, Shapeev, Alexander, Srinivasan, P.   +7 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

Mechanistic origin of high retained strength in refractory BCC high entropy alloys up to 1900K

, 2019
The body centered cubic (BCC) high entropy alloys MoNbTaW and MoNbTaVW show exceptional strength retention up to 1900K. The mechanistic origin of the retained strength is unknown yet is crucial for finding the best alloys across the immense space of BCC ...
Curtin, William A., Maresca, Francesco
core   +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

Discovery of high-entropy ceramics via machine learning [PDF]

, 2020
Although high-entropy materials are attracting considerable interest due to a combination of useful properties and promising applications, predicting their formation remains a hindrance for rational discovery of new systems.
Curtarolo, Stefano, Harrington, Tyler J, Kaufmann, Kevin, Maryanovsky, Daniel, Mellor, William M, Oses, Corey, Rosengarten, Alexander S, Toher, Cormac, Vecchio, Kenneth S, Zhu, Chaoyi   +9 more
core   +1 more source

High-entropy alloys: a critical assessment of their founding principles and future prospects [PDF]

, 2016
High-entropy alloys (HEAs) are a relatively new class of materials that have gained considerable attention from the metallurgical research community over recent years.
Jones, NG, Pickering, EJ
core   +2 more sources

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

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

Microstructure and Mechanical Properties of Nb–Ti–V–Zr Refractory Medium-Entropy Alloys

Frontiers in Materials, 2020
Low-density refractory medium entropy alloys (NbTiVZr, Nb0.5TiVZr, and NbTiV) were produced by vacuum arc melting, then heat-treated at 1,200°C for 1 h, water quenched, and finally annealed at 500°C for 0.5 h.
Yuefei Jia, Liangbo Zhang, Peiyou Li, Xindi Ma, Long Xu, Shiwei Wu, Yandong Jia, Gang Wang   +7 more
doaj   +1 more source