Results 61 to 70 of about 15,726 (187)
Corrosion behaviour of Al-Fe-Ti-V medium entropy alloy
, 2017 : Alloys containing up to four multi-principal elements in equiatomic ratios are referred to as medium entropy alloys (MEA). These alloys have attracted the interest of many researchers due to the superior mechanical properties it offers over the ...
Obadele, B.A. +7 more
core +1 more source
, 2022 High-entropy alloys are slowly making their debut as a platform for catalyst discovery, but conventional methods, theoretical as well as experimental, may fall short of screening the vast composition space inhabited by this class of materials.
Christian Møgelberg, Clausen +3 more
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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 +7 more
doaj +1 more source
Design and development of Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials
Materials & Design, 2021 Applying empirical alloy parameters (including Mo equivalent), the predicted ground state diagram, and thermodynamic calculations, noble nonequiatomic Ti–Zr–Hf–Nb–Ta–Mo high-entropy alloys for metallic biomaterials (BioHEAs) were designed and newly ...
Yuuka Iijima +5 more
doaj +1 more source
Magnetically-driven phase transformation strengthening in high entropy alloys
Nature Communications, 2018 Medium entropy alloy CoCrNi has better mechanical properties than high entropy alloys such as CrMnFeCoNi, but why that is remains unclear. Here, the authors show that a nanostructured phase at lattice defects in CoCrNi causes its extraordinary properties,
Changning Niu +4 more
doaj +1 more source
Ultrastrong and ductile medium-entropy alloys via hierarchical ordering
Science AdvancesLong-range ordered phases in most high-entropy and medium-entropy alloys (HEAs/MEAs) exhibit poor ductility, stemming from their brittle nature of complex crystal structure with specific bonding state. Here, we propose a design strategy to severalfold strengthen a single-phase face-centered cubic (fcc) Ni 2 CoFeV ...
Lei Gu +14 more
openaire +2 more sources
, 2021 A melt-extracted HoErCo medium-entropy alloy (MEA) with large magnetic entropy change and excellent magnetic refrigerant capacity is successfully designed in this study. The microstructure evolution of these microwires near room temperature is studied by
Li, Ze +6 more
core +1 more source
Corrosion behavior of VCrFeCoNi medium-entropy alloy in chloride solution
, 2023 The present work investigates the corrosion properties and passivation layer of VCrFeCoNi medium-entropy alloy (V-MEA). The V-MEA exhibits the corrosion current density of ∼0.101 μA and corrosion potential of ∼ -0.336 V with a broad passivation region of
Yong-Tae Kim +6 more
core +1 more source
New-Generation Materials for Hydrogen Storage in Medium-Entropy Alloys
MaterialsThis study presents the design, preparation, and characterization of thirty new medium-entropy alloys (MEAs) in three systems: Al-Ti-Nb-Zr, Al-Ti-Nb-V, and Al-Ti-Nb-Hf. The hardness of the alloys ranged from 320 to 800 HV0.3. Among the alloys studied, Al15Ti40Nb30Zr15 exhibited the highest-reversible hydrogen storage capacity (1.03 wt.%), with an H/M ...
Dagmara Varcholová +8 more
openaire +3 more sources
Corrosion-resistant Cu-Fe-based immiscible medium-entropy alloy with tri-layer passivation
, 2021 Here, a novel alloy design strategy for improving corrosion resistance of Al15(CuFeMn)85 (at%) immiscible dualphase medium-entropy alloy is proposed and verified experimentally.
Baek, Seung Mi +9 more
core +1 more source