Results 31 to 40 of about 991 (250)

First-Principles Design of Refractory High Entropy Alloy VMoNbTaW [PDF]

Entropy, 2018
The elastic properties of seventy different compositions were calculated to optimize the composition of a V–Mo–Nb–Ta–W system. A new model called maximum entropy approach (MaxEnt) was adopted. The influence of each element was discussed. Molybdenum (Mo) and tungsten (W) are key elements for the maintenance of elastic properties. The V–Mo–Nb–Ta–W system
Zheng, Shumin, Wang, Shaoqing
openaire   +3 more sources

Enhanced Strength of a Mechanical Alloyed NbMoTaWVTi Refractory High Entropy Alloy [PDF]

Materials, 2018
A NbMoTaWVTi refractory high entropy alloy (HEA) has been successfully synthesized by mechanical alloying (MA) and spark plasma sintering (SPS). The microstructure and mechanical properties of this alloy are investigated. It is observed that only two types of body-centered cubic (BCC) solid solutions are formed in the powders after ball milling for 40 ...
Long, Yan, Su, Kai, Zhang, Jinfu, Liang, Xiaobiao, Peng, Haiyan, Li, Xiaozhen   +5 more
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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

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
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A novel lightweight refractory high-entropy alloy

Journal of Materials Research and Technology
A novel equiatomic refractory AlNbTiVY high-entropy alloy containing rare earth elements was fabricated by vacuum arc melting. AlNbTiVY alloy possesses a dual-phase structure, consisting of a B2 ordered matrix and an Orthorhombic structured Y2Al second phase. The alloy has a dendritic microstructure with a density of only 5.18 g/cm3.
Wentao Jiang, Tiantian Wang, Xiaohong Wang, Bo Jiang, Ye Wang, Xin Wang, Hongyu Xu, Maoliang Hu, Dongdong Zhu   +8 more
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High temperature oxidation resistance of AlMoxNbTayTiZr refractory high entropy alloys fabricated by laser additive manufacturing

Cailiao gongcheng
Refractory high entropy alloys have excellent high temperature mechanical properties， but the high temperature oxidation resistance has always been one of the limiting factors in their application. Four kinds of refractory high entropy alloys AlNbTaTiZr，
ZHANG Zhibo, LI Zhuo, SU Bing, SHEN Chunjie, REN Pengji   +4 more
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Improving mechanical properties of (Co1.5FeNi)88.5Ti6Al4R1.5 (R = Hf, W, Nb, Ta, Mo, V) multi-component high-entropy alloys via multi-stage strain hardening strengthening

Materials & Design, 2022
In this study, (Co1.5FeNi)88.5Ti6Al4R1.5 (R = Hf, W, Nb, Ta, Mo, V) high entropy alloys were fabricated by vacuum arc melting, followed by cold rolling and aging treatment.
Jijie Yang, Chaojie Liang, Chenglei Wang, Jian Huang, Bing Qiu, Mulin Liang, Weijie Liu, Yingguang Xie, Kexiang Zhang, Shengfeng Zhou   +9 more
doaj   +1 more source

Refractory high-entropy alloys fabricated by powder metallurgy: Progress, challenges and opportunities

Journal of Science: Advanced Materials and Devices
Refractory high-entropy alloys, which involve the mixing of four or more refractory metal elements in an equiatomic or near-equiatomic ratio, hold significant potential for various applications in high-temperature materials fields.
Baoguang Zhang, Yuanping Huang, Zhenyu Dou, Jian Wang, Zhifu Huang   +4 more
doaj   +1 more source

A Review of Irradiation-Tolerant Refractory High-Entropy Alloys

Metals, 2023
Along with the globalization of environmental problems and the rapid development of the field of nuclear technologies, the severe irradiation damage of materials has become a big issue, restricting the development of advanced nuclear reactor systems ...
Beiya Wang, Chao Yang, Da Shu, Baode Sun
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