Results 71 to 80 of about 6,572 (196)

Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy. [PDF]

, 2020
Strategies involving metastable phases have been the basis of the design of numerous alloys, yet research on metastable high-entropy alloys is still in its infancy.
Chen, Sijing, Gludovatz, Bernd, Kim, Sang Jun, Oh, Hyun Seok, Park, Eun Soo, Ritchie, Robert O, Yu, Qian, Zhang, Ze   +7 more
core   +1 more source

New ZrB$_2$ polymorphs: First-principles calculations

, 2020
Two new hypothetical zirconium diboride (ZrB2) polymorphs: (hP6-P63/mmc space group, no.194) and (oP6-Pmmn-space group, no.59), were thoroughly studied under the first-principles density functional theory calculations from the structural, mechanical and ...
Maździarz, Marcin, Mościcki, Tomasz
core   +1 more source

Ternary Nitride Semiconductors in the Rocksalt Crystal Structure [PDF]

, 2018
Inorganic nitrides with wurtzite crystal structures are well-known semiconductors used in optoelectronic devices. In contrast, rocksalt-based nitrides are known for their metallic and refractory properties.
Bauers, Sage R., Ceder, Gerbrand, Gorman, Brian, Holder, Aaron, Lany, Stephan, Mangum, John, Melamed, Celeste L., Perkins, John, Sun, Wenhao, Tamboli, Adele, Tumas, William, Woods-Robinson, Rachel, Zakutayev, Andriy   +12 more
core   +2 more sources

Microstructure and Room Temperature Mechanical Properties of Different 3 and 4 Element Medium Entropy Alloys from HfNbTaTiZr System

Entropy, 2019
Refractory high entropy alloys (HEA) are promising materials for high temperature applications. This work presents investigations of the room temperature tensile mechanical properties of selected 3 and 4 elements medium entropy alloys (MEA) derived from ...
Jiří Zýka, Jaroslav Málek, Jaroslav Veselý, František Lukáč, Jakub Čížek, Jan Kuriplach, Oksana Melikhova   +6 more
doaj   +1 more source

High-Temperature Oxidation Behavior of Refractory High-Entropy Alloys: Effect of Alloy Composition

Oxidation of Metals, 2017
The high-temperature oxidation behavior of a new family of refractory high-entropy alloys (HEAs) with compositions of W–Mo–Cr–Ti–Al, Nb–Mo–Cr–Ti–Al and Ta–Mo–Cr–Ti–Al was studied at 1000 and 1100 °C. Based on these equimolar starting compositions, the main incentive of this study was to select the most promising alloy system whose properties may then ...
Gorr, Bronislava, Müller, Franz, Azim, Maria, Christ, Hans-Jürgen, Müller, Torsten, Chen, Hans, Kauffmann, Alexander, Heilmaier, Martin   +7 more
openaire   +3 more sources

Research on Performance Prediction Method of Refractory High-Entropy Alloy Based on Ensemble Learning

Metals
Due to the huge component space of refractory high-entropy alloy, the traditional, experimental “trial and error method” can not meet the design requirements.
Guangxiang Tian, Pingluo Zhao, Yangwei Wang, Hongmei Zhang, Liying Xing, Xingwang Cheng   +5 more
doaj   +1 more source

Additively manufactured high-entropy alloys for hydrogen storage: Predictions

Heliyon
This review paper covers an analysis of the empirical calculations, additive manufacturing (AM) and hydrogen storage of refractory high-entropy alloys undertaken to determine the structural compositions, particularly focusing on their applicability in ...
Morena S. Xaba
doaj   +1 more source

First-principles study, fabrication and characterization of (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramic [PDF]

, 2019
The formation possibility of a new (Zr0.25Nb0.25Ti0.25V0.25)C high-entropy ceramic (ZHC-1) was first analyzed by the first-principles calculations and thermodynamical analysis and then it was successfully fabricated by hot pressing sintering technique ...
Chu, Yanhui, Hao, Luyao, Nguyen, Manh Cuong, Wang, Cai-Zhuang, Wen, Tongqi, Ye, Beilin   +5 more
core   +2 more sources

Melting of multicomponent, refractory alloys in an induction furnace under gas‑vacuum conditions

Литьë и металлургия
The paper considers the advantages of induction melting in a vacuum environment, ensuring the production of high‑alloy alloys based on refractory components, free from harmful impurities with specified properties. The processes occurring in alloys during
U. A. Kalinichenko, L. P. Dolgiy, S. V. Martseva, A. A. Kalinichenko   +3 more
doaj   +1 more source

High-Pressure Torsion: A Path to Refractory High-Entropy Alloys from Elemental Powders

Metals
For the first time, the refractory high-entropy alloys with equiatomic compositions, HfNbTaTiZr and HfNbTiZr, were synthesized directly from a blend of elemental powders through ten revolutions of high-pressure torsion (HPT) at room temperature.
Andrey Mazilkin, Mahmoud R. G. Ferdowsi, Evgeniy Boltynjuk, Roman Kulagin, Rimma Lapovok   +4 more
doaj   +1 more source