A5100353348- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Electromagnetic wave absorption materials
- Metal and Thin Film Mechanics
- Advanced Antenna and Metasurface Technologies
- Advanced materials and composites
- Advanced Materials Characterization Techniques
- Intermetallics and Advanced Alloy Properties
- Additive Manufacturing Materials and Processes
- Metamaterials and Metasurfaces Applications
- High Temperature Alloys and Creep
- Fiber-reinforced polymer composites
- Dielectric materials and actuators
- Titanium Alloys Microstructure and Properties
- Nuclear Engineering Thermal-Hydraulics
- Heat Transfer and Boiling Studies
- Metal Alloys Wear and Properties
- Nuclear reactor physics and engineering
- Carbon Dioxide Capture Technologies
- Phase Equilibria and Thermodynamics
Xi'an Jiaotong University
2023-2024
Shandong University
2021-2024
Shanghai Jiao Tong University
2023
Chongqing University
2022
China Three Gorges University
2020
Inner Mongolia University of Technology
2016
Non-magnetic bimetallic MOF-derived porous carbon-wrapped TiO2/ZrTiO4 composites are firstly used for efficient electromagnetic wave absorption. The absorption mechanisms including enhanced interfacial polarization and essential conductivity intensively discussed. Modern communication technologies put forward higher requirements (EMW) materials. Metal-organic framework (MOF) derivatives have been widely concerned with its diverse advantages. To break the mindset of magnetic-derivative...
The Mo15Nb20Ta10Ti35V20 refractory high entropy alloy with BCC structure was prepared by vacuum arc melting. synthesized demonstrated better corrosion resistance compared to 316 stainless steel in chloride environment, whose is attributed the complex passive film and shows characteristics of passivation-transpassivation-secondary passivation on polarization curve. Mott-Schottky curves analysis XPS results show that primary secondary films have different P-N junctions which were composed...
Interstitial solutes, such as carbon in steels, are effective solid-solution hardening agents. These alloying elements believed to occupy the octahedral interstices body-centered-cubic (bcc) metals. Using deep-sub-angstrom-resolution electron ptychography, here first experimental evidence directly observe individual oxygen atoms a highly concentrated bcc solid solution-the (TiNbZr)86 O12 C1 N1 medium-entropy alloy (MEA)-is provided, whereby interstitial sites which located discerned. In...
NbTaTiV and CrNbTaTiV were fabricated by arc melting effect of Cr element on electrochemical high temperature hot corrosion behavior compared. Electrochemical investigations revealed that Laves phase at grain boundaries would underwent galvanic corrosion, resulting in a marginal reduction resistance. The results showed within Na2SO4 + 25 wt% NaCl molten salt environment, the oxide film formed effectively improved surface stability, reduced formation unprotected loose products generation low...
The limited ductility of Refractory High Entropy Alloy (RHEA) at room temperature hinders its widespread application. However, optimizing their properties through traditional "trial and error" methods is a challenging due to the intricate composition Alloys (HEAs). First principles calculation an efficient cost-effective method for predicting material properties. Three modeling high entropy alloys are most commonly used, namely Supercell (SC), Special quasi-random structure (SQS) Virtual...
The bilayer structure passive films were formed on FeCoCrNiNbx alloy surfaces in 0.5 M H2SO4 solution. inner film was denser and more protective. high Cr/Nb ratio would facilitate the passivation of alloys formation a thicker surface. protective ability determined by structure, composition, thickness film, while semiconductor characteristics could only contribute to improvement but not directly determine film.
Thermophysical properties for binary mixture of tetraethylene glycol (T4EG) (1) + 1,2-ethanediamine (EDA) (2), a potential scrubbing solution the absorption CO2, are very important as well lacking in literatures. This work reports densities and viscosities over entire concentration range at T = (293.15-318.15) K under atmospheric pressure. According to experimental density viscosity values, mixtures' excess molar volume (VmE), absolute deviation (∆η), free energies activation (∆G*E),...
Metallurgists have long been accustomed to a trade-off between yield strength and tensile ductility. Extending previously known strain-hardening mechanisms, the emerging multi-principal-element alloys (MPEAs) offer additional help in promoting strength-ductility synergy, towards gigapascal simultaneously with pure-metal-like The highly concentrated chemical make-up these 'high-entropy' (HEAs) adds, at ultrafine spatial scale from sub-nanometer tens of nanometers, inherent inhomogeneities...
<title>Abstract</title> Oxygen interstitial solutes have traditionally been thought to occupy only octahedral interstices in body-centered cubic (bcc) metals. However, there is ongoing debate about the competition between tetrahedral and sites for oxygen multi-principal element alloys, especially following recent experimental evidence obtained using deep-sub-angstrom-resolution electron ptychography. The driving force atomistic mechanism behind observed preference switch remain unclear. In...
We investigate the strain-rate-dependent mechanical behavior and deformation mechanisms of a refractory high entropy alloy, Ti29Zr24Nb23Hf24 (at.%), with single-phase body-centered cubic (BCC) structure. High-temperature compression tests were conducted at temperatures from 700 to 1100°C strain rates ranging 10-3 10 s-1. A sudden stress drop after yield point was observed higher lower Zener-Holloman parameter, lnZ, in range 17.2-20.7. Such softening can be related interaction dislocations...
Abstract This study aims to develop an experimental verification calculation model based on the open source CFD platform OpenFOAM simulate boiling flow in single rod channel. Two-fluid coupled with improved RPI wall (i.e. CHF model) was employed investigate departure from nuclear (DNB) phenomena a under extremely high heat flux. The corrected flux partitioning implemented two-phase boiling. A good agreement between predicted and results observed. On this basis, effects of coolant mass inlet...