Results 41 to 50 of about 6,572 (196)

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

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

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

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

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
doaj   +1 more source

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

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
openaire   +3 more sources

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

Carbides and Nitrides of Zirconium and Hafnium. [PDF]

, 2019
Among transition metal carbides and nitrides, zirconium, and hafnium compounds are the most stable and have the highest melting temperatures. Here we review published data on phases and phase equilibria in Hf-Zr-C-N-O system, from experiment and ab ...
Hong, Qi-Jun, Navrotsky, Alexandra, Ushakov, Sergey V, van de Walle, Axel   +3 more
core   +1 more source