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Showing 1 to 15 of 15 for “"High entropy Alloy"”.
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Stress Corrosion Cracking of a Transformation Induced Plasticity Fe39Mn20CO20Cr15Si5Al1 High Entropy Alloy
… continues to advance, the demand for advanced alloys is also increasing. High entropy alloys (HEAs) are recently developed alloys, with some of them exhibiting excellent mechanical properties. However, their SCC properties have yet to be explored. The present research focuses on understanding …
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Atomistic Modeling of Defect Energetics and Kinetics at Interfaces and Surfaces in Metals and Alloys
… free surfaces and grain boundaries in metals and alloys play important roles affecting many material properties such as fracture toughness, corrosion resistance, wetting, and catalysis. Their interactions with point defects and solute elements also play critical roles on governing the …
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Application and Performance of High Entropy Metal Nanoparticles in the Field of Antibacterial
… and reviews a new method for synthesizing high-entropy alloy oxide nanoparticles (HEO NPs), which is expected to possess the advantages of multiple metals while retaining the antibacterial properties of metals themselves. We tested the antibacterial properties of different phase alloy …
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Investigating Dislocation Behavior in High Entropy Alloys Using Atomistic Simulations
High-entropy alloy (HEA) is a new alloying strategies involving multi-principal elements in near equiatomic proportions.[39, 11, 37, 19, 41, 13] To fully understand and tune the mechanical properties and crystal plasticity of the alloys, it is necessary to investigate the dislocation behavior[15]. …
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A novel mechanism for metal alloying at the nanoscale
… We propose a novel mechanism for metal alloying at the nanoscale, which provides a general route for alloying dissimilar elements into single-phase solid-solution nanoparticles, referred to as high-entropy-alloy nanoparticles (HEA-NPs). To validate the theory, we developed a facile …
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SYNTHESIS, PROCESSING, AND CHARACTERIZATION OF TITANIUM CARBIDE AND TITANIUM DIBORIDE BASED MATERIALS FOR STRUCTURAL AND ELECTRONIC APPLICATION
… size (nano to submicron grade, 100nm to 800nm), high purity (low levels of contaminations such as free carbon and oxygen), loose agglomeration, and high surface area (~2.5 m2/g to 7.2 m2/g). Using the synthesized powders, three categories of composites were prepared: (1) TiB2-TiC-Ni composites …
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Computational and Data-Driven Design of Perturbed Metal Sites for Catalytic Transformations
… descriptors of transition and noble metal alloys, including a physics model of d-band center, and a tight-binding theory of d-band moments to systematically elucidate the distinct electronic structures of novel catalysts. Within this framework, the hybridization of semi-empirical theories …
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Accelerating Novel Energy Catalyst Discovery Using Automation, Active Learning, and AI
… the workflow of composition selection, high-throughput materials synthesis, electrochemical screening and characterization for the optimization of high-entropy alloy catalysts. The system allows researchers, regardless of their programming skills, to interact with the robotic platform …
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HIGH TEMPERATURE NANOMANUFACTURING FOR EMERGING TECHNOLOGIES
High temperature processing can provide sufficient activation energy for materials’ compositional, structural, and morphological evolutions, and is essential for various kinds of reactions, synthesis, and post-treatment. However, the current high temperature heating sources, mostly furnaces, are …
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First-Principles Investigation of Doping and Alloying of β-Ga2O3
… visible light up to deep ultraviolet. It has a high Baliga figure of merit (BFOM) — a weighted numerical combination of the dielectric constant, charge carrier mobility, and critical breakdown field —, which is commonly used for a quantitative comparison of semiconductors for high-current …
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Development of new high entropy alloys for brazing of Ni-base superalloys
High entropy alloys (HEAs), also called multi-principal component alloys, are novel alloys containing at least five elements with an atomic percent ranging between 5% and 35%. HEAs have attracted attention due to their unique properties such as high strength, good ductility, and high resistance to …
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The analysis of local structural effects in alloys using total scattering and reverse Monte Carlo techniques
… resistivity and magnetic variations in a host of alloys. However, due mainly to experimental difficulties and the complexity of the calculations required for the analysis of diffuse scattering, such work has been largely abandoned and hence quantification and assessment of SRO is notably sparse in …
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PVD COATING TREATMENT TOWARDS A SUSTAINABLE AND ECO-FRIENDLY MANUFACTURING SYSTEM
… short component lifetimes, all of which impose high environmental and economic costs. Sustainable coating solutions are therefore required to enhance durability while reducing waste and energy consumption. Physical Vapor Deposition (PVD) offers an eco-friendly approach, and in recent years high …
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Voxelized Atomic Structure Framework for Atomistic Modeling of Multifunctional Materials
… (VASt) framework for formulating physics-based, high-fidelity reduced-order material structure-property relationships using density functional theory (DFT) computations. We first use DFT with the Boltzmann transport equation to compute the thermal conductivity of the novel electride Ca2N and to …