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43 results on '"nanocrystalline"'

2. Structural and Optical Properties of Chalcogenide WS2 Thin Film

Author

Kumar, Avneesh, Kumar, Sandeep, Srivastava, Mudit Prakash, Yadav, Prachi, Surbhi, Rana, Devendra Kumar, Ghosh, Arindam, Series Editor, Chua, Daniel, Series Editor, de Souza, Flavio Leandro, Series Editor, Aktas, Oral Cenk, Series Editor, Han, Yafang, Series Editor, Gong, Jianghong, Series Editor, Jawaid, Mohammad, Series Editor, Krupanidhi, Saluru Baba, editor, Sharma, Anjali, editor, Singh, Anjani Kumar, editor, and Tuli, Vinita, editor

Published
2024
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4. Design of High Power Density Wireless Charging System for Unmanned Aerial Vehicle

Author

Yang, Fengshuo, Song, Kai, Zhang, Peng, Zhang, Jiantao, Zhu, Chubo, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, He, Jinghan, editor, Li, Yaohua, editor, Yang, Qingxin, editor, and Liang, Xidong, editor

Published
2022
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22. Structure evolution in tribological interfaces studied by multilayer model alloys

Author

Cihan, Ebru

Subjects
Reibung und Verschleiß, Plastizität, nanocrystalline, plasticity, grain boundary, dislocation, friction and wear, Au-Ni multilayers, Nanokristallin, Korngrenze, Versetzung, Au-Ni Multilagen, thema EDItEUR::T Technology, Engineering, Agriculture, Industrial processes::TG Mechanical engineering and materials
Abstract

Recent studies of deformation mechanisms of metals and alloys pioneer the better investigation of the friction and wear behavior of materials with well-defined initial microstructures. Within this scope, in this work, the effect of sub-surface deformations on the resulting friction and wear behavior has been searched by means of a systematic experimental study on Au-Ni metallic multilayer model alloy system.

Published
2020
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33. New Advances in High-Entropy Alloys.

Author

Zhang, Yong and Zhang, Yong

Subjects
Research & information: general, (AlCrTiZrV)-Six-N films, (CoCrFeNi)100−xMox alloys, AZ91D magnesium alloy, CALPHAD, CCA, CCAs, CrFeCoNi(Nb,Mo), Curie temperature, HEA, HEAs, Hall-Petch (H-P) effect, MPEAs, ab initio, additive manufacturing, alloy design, alloys design, annealing, annealing treatment, atom probe tomography, atomic-scale unstable, bcc, bulk metallic glass, cluster expansion, cluster variation method, coating, coherent microstructure, complex concentrated alloys, complex stress field, composite, composition scanning, compositionally complex alloy, compositionally complex alloys, compressive properties, configuration entropy, conventional alloys, corrosion, corrosion behavior, creep mechanism, deformation, deformation and fracture, deformation behaviors, deformation mechanism, density functional theory, diamond, differential scanning calorimetry (DSC), elastic property, electron microscopy, elemental addition, elemental partitioning, elemental powder, elevated-temperature yield strength, elongation prediction, entropy, eutectic dendrites, first-principles calculation, first-principles calculations, flow serration, gamma double prime nanoparticles, graded material, grain refinement, hardening behavior, hardness, heat-softening resistance, hierarchical nanotwins, high entropy alloy, high entropy alloys, high pressure, high-entropy alloy, high-entropy alloy coating, high-entropy alloys, high-entropy alloys (HEAs), high-entropy ceramic, high-entropy film, high-entropy films, high-pressure torsion, high-temperature structural alloys, immiscible alloys, in situ X-ray diffraction, interface, interstitial phase, ion irradiation, kinetics, laser cladding, laser metal deposition, lattice constants, lattice distortion, lightweight alloys, liquid phase separation, low-activation alloys, low-activation high-entropy alloys (HEAs), magnetic properties, magnetic property, matrix formulation, maximum entropy, mechanical alloying, mechanical behaviors, mechanical characterization, mechanical properties, mechanical property, medium entropy alloy, medium entropy alloys, mechanical properties, metal matrix composites, microhardness, microstructural evolution, microstructure, microstructures, miscibility gaps, monte carlo, multi-principal element alloys, multicomponent, multicomponent alloys, nanocomposite structure, nanocrystalline, nanocrystalline materials, nanodisturbances, nanoprecipitates, nanoscaled high-entropy alloys, partial recrystallization, phase composition, phase constituent, phase constitution, phase evolution, phase stability, phase structures, phase transformation, phase transformations, phase transition, plasticity, plasticity methods, polymorphic transition, powder metallurgy, precipitation, precipitation kinetics, recrystallization, refractory high entropy alloys, refractory high-entropy alloys, scandium effect, serration behavior, shear band, sodium chloride, solid solution strengthening effect, solid-solution, solid-solution alloys, solid-state diffusion, solidification, spark plasma sintering, specific heat, sputtering, stacking-fault energy, strain rate sensitivity, strengthening, strengthening mechanisms, structural metals, sulfuric acid, tensile creep behavior, tensile strength, thermal expansion, thermodynamic integration, thermoelectric properties, thin films, transmission electron microscopy, volume swelling, wear, wear behaviour, welding
Abstract

Summary: In recent years, people have tended to adjust the degree of order/disorder to explore new materials. The degree of order/disorder can be measured by entropy, and it can be divided into two parts: topological disordering and chemical disordering. The former mainly refers to order in the spatial configuration, e.g., amorphous alloys which show short-range ordering but without long-range ordering, while the latter mainly refers to the order in the chemical occupancy, that is to say, the components can replace each other, and typical representatives are high-entropy alloy (HEAs). HEAs, in sharp contrast to traditional alloys based on one or two principal elements, have one striking characteristic: their unusually high entropy of mixing. They have not received much noticed until the review paper entitled "Microstructure and Properties of High-Entropy Alloys" was published in 2014 in the journal of Progress in Materials Science. Numerous reports have shown they exhibit five recognized performance characteristics, namely, strength-plasticity trade-off breaking, irradiation tolerance, corrosion resistance, high-impact toughness within a wider temperature range, and high thermal stability. So far, the development of HEAs has gone through three main stages: 1. Quinary equal-atomic single-phase solid solution alloys; 2. Quaternary or quinary non-equal-atomic multiphase alloys; 3. Medium-entropy alloys, high-entropy fibers, high-entropy films, lightweight HEAs, etc. Nowadays, more in-depth research on high-entropy alloys is urgently needed.

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