Results 21 to 30 of about 15,700 (190)

Plastic deformation of solid-solution strengthened Hf-Nb-Ta-Ti-Zr body-centered cubic medium/high-entropy alloys

open access: yesScripta Materialia, 2021
Plastic deformation and rate-controlling mechanism during tensile deformation of various body-centered cubic (BCC) medium/high-entropy alloys (MEAs/HEAs) were investigated at 300 K. Microstructural observations revealed long, straight screw dislocations,
R. Eleti   +4 more
semanticscholar   +1 more source

Exploring alloying effect on phase stability and mechanical properties ofγ″-Ni3Nb precipitates with first-principles calculations

open access: yesMaterials & Design, 2020
The superior mechanical strength of Inconel 718 and similar Nb containing alloys mainly results from the ordered γ″-Ni3Nb precipitates. By employing first-principles calculations, we comprehensively investigate the effects of alloying elements (i.e., Sc,
Xiaoguo Gong   +6 more
doaj   +1 more source

Temperature-dependent elastic properties of binary and multicomponent high-entropy refractory carbides

open access: yesMaterials & Design, 2021
Available information concerning the elastic moduli of refractory carbides at temperatures (T) of relevance for practical applications is sparse and/or inconsistent.
D.G. Sangiovanni   +5 more
doaj   +1 more source

Comparative Study of Preparation and Electrochemical Properties of Nb4C3Tx (T = –OH, –F, or =O) and (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4C3Tx (T = –OH, –F, or =O) MXenes

open access: yesMetals, 2023
Two–dimensional MXene synthesized from MAX phase ceramic has good electrical conductivity, promising to be used as electrodes. In this study, Nb4C3Tx (T = –OH, –F, or =O) MXene and low–entropy (Nb0.8Ti0.05V0.05Zr0.05Ta0.05)4C3Tx (T = –OH, –F, or =O ...
Ming Fu   +5 more
doaj   +1 more source

Computational exploration of biomedical HfNbTaTiZr and Hf0.5Nb0.5Ta0.5Ti1.5Zr refractory high-entropy alloys

open access: yesMaterials Research Express, 2021
Refractory high entropy alloys (RHEAs) have been proven to be a potential candidate in the biomedical field due to their balanced mechanical properties and biocompatible composition.
Uttam Bhandari   +5 more
doaj   +1 more source

Anisotropic thermoelectric properties in layered complex nitrides with α-NaFeO2-type structure

open access: yesAPL Materials, 2016
Electronic structures and thermoelectric transport properties of α-NaFeO2-type d0-electron layered complex nitrides AMN2 (A = Sr or Na; M = Zr, Hf, Nb, Ta) were evaluated using density-functional theory and Boltzmann theory calculations.
Isao Ohkubo, Takao Mori
doaj   +1 more source

GEOCHEMICAL FEATURES OF DIKE AILLIKITES AND ALKALINE ROCKS OF THE BOLSHETAGNINSKY MASSIF (URIK-IYA GRABEN, EAST SAYAN REGION)

open access: yesГеодинамика и тектонофизика, 2022
The ICP-MS determinations have been made on microelement content of ~650–640 Ma ultramafic lamprophyre-aillikite dikes and alkaline silicate rocks and carbonatites from the Bolshetagninsky ijolite-syenite massif, spatially overlapped in the northern Urik-
V. B. Savelieva   +3 more
doaj   +1 more source

Solid-solution strengthening of Ti-Zr-Hf-Nb-Ta-Fe refractory high-entropy alloy

open access: yesJournal of Physics: Conference Series, 2022
Ti-Zr-Hf-Nb-Ta system refractory high-entropy alloys (RHEAs) exhibits outstanding tensile ductility in room temperature. However, the moderate yield strength of them is insufficient.
Fuxin Liu   +3 more
semanticscholar   +1 more source

The Tarim Basin, China, a prospect for plume-related Zr(Hf)-Nb(Ta)-REY-Ga-U mineralization

open access: yes, 2021
This study is based on published data from the Tarim and Emeishan Large Igneous Provinces (TLIP and ELIP, respectively). The data are interpreted in a comparative manner, using the well-studied ELIP’s mineralization as a reference.
V. Nechaev   +4 more
semanticscholar   +1 more source

Pt-induced atomic-level tailoring towards paracrystalline high-entropy alloy

open access: yesNature Communications, 2023
Paracrystalline state is still challenging to reach in alloy systems in a controlled manner. Here, the authors present an atomic-level tailoring route to create paracrystalline Zr-Nb-Hf-Ta-Mo high-entropy alloy through local amorphization induced by ...
Xingjia He   +10 more
doaj   +1 more source

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