A5006192571- High Entropy Alloys Studies
- High-Temperature Coating Behaviors
- Advanced materials and composites
- Advanced Materials Characterization Techniques
- Aluminum Alloy Microstructure Properties
- Magnetic properties of thin films
- Magnetic Properties and Applications
- High Temperature Alloys and Creep
- Intermetallics and Advanced Alloy Properties
- Microstructure and mechanical properties
- Magneto-Optical Properties and Applications
- Geotechnical Engineering and Analysis
- Inorganic Fluorides and Related Compounds
- Metal and Thin Film Mechanics
- Additive Manufacturing Materials and Processes
- Grouting, Rheology, and Soil Mechanics
- Nanoporous metals and alloys
- Magnetic Properties of Alloys
- Laser-induced spectroscopy and plasma
- Hydrological Forecasting Using AI
- Metallurgical and Alloy Processes
- Magnetic and transport properties of perovskites and related materials
- Contact Mechanics and Variational Inequalities
- Thermodynamic and Structural Properties of Metals and Alloys
- Dam Engineering and Safety
Ames National Laboratory
2024-2025
Shanghai Institute of Applied Physics
2023-2025
Soochow University
2025
Government of the United States of America
2024
University of Science and Technology Beijing
2015-2023
Chinese Academy of Sciences
2023
China Three Gorges Corporation (China)
2020-2022
China Academy of Railway Sciences
2021
High-entropy alloys (HEAs) in which interesting physical, chemical, and structural properties are being continuously revealed have recently attracted extensive attention. Body-centered cubic (bcc) HEAs, particularly those based on refractory elements promising for high-temperature application but generally fail by early cracking with limited plasticity at room temperature, limits their malleability widespread uses. Here, the "metastability-engineering" strategy is exploited brittle bcc HEAs...
High-entropy alloys exhibit exceptional mechanical properties at cryogenic temperatures, due to the activation of twinning in addition dislocation slip. The coexistence multiple deformation pathways raises an important question regarding how individual mechanisms compete or synergize during plastic deformation. Using situ neutron diffraction, we demonstrate interaction a rich variety high-entropy 15 K, which began with slip, followed by stacking faults and twinning, before transitioning...
Biocompatibility of HEAs in the TiZrHfNbTa system which all constituents are non-toxic and allergy-free was scrutinized systematically, novel biomechanical materials with a unique combination low modulus (57 GPa, almost half that conventional biomedical titanium alloys), good mechanical biocompatibility magnetic susceptibility (1.71 × 10−6 cm3 g−1, similar to pure Zr) were successfully developed. Moreover, underlying mechanisms responsible for phase formation promising properties explored....
Molten salt mixtures of LiF, NaF, and BeF2 are widely recognized as potential solvents coolants in molten reactor applications. The structural effects LiF addition to the ternary...
<title>Abstract</title> Energy efficiency of heat engines (gas and steam turbines) for electricity production propulsion scale with operating temperature following the Carnot cycle. Commercial Ni- Co-based superalloys melt near 1500°C rapidly lose mechanical strength beyond 1000°C. Refractory metals well above 2000°C but have inherent manufacturability challenges, like high ductile-to-brittle transition temperatures, that are significant barriers to adoption. Using density-functional theory...
Abstract In n‐i‐p planar perovskite solar cells (PSCs), the electron transport layer (ETL) and hole transporting play a crucial role in realizing high power conversion efficiency (PCE). Herein, TiO 2 ‐SDBA‐SnO stacked ETL is reported, where 4,4′‐sulfonyldibenzoic acid (SDBA) serves as an active passivation agent to suppress charge recombination enhance interface quality. SDBA effectively passivates oxygen vacancies sputtered , while simultaneously promoting SnO nucleation improving film...
Characteristics of deformation-induced transformation under loading dictate the mechanical performance TRIP (transformation-induced plasticity)-reinforced bulk metallic glass composites (BMGCs), which have shown great potential as engineering materials. Here, we report that addition 0.3 at.% Ta in Ti45Cu41Ni9Zr5 alloy could induce formation uniform glassy composite structure with B2-(Ti,Zr)(Ni,Cu) precipitates. More interestingly, nanosized A2-(Ti,Zr)(Ni,Cu) particles also formed inside B2...
The contraction joints of arch dams with and without shear keys are simplified to be no‐slip condition relative sliding condition, respectively. Based on the Lagrange multiplier method, a contact model considering manner independent cantilever dead load type is proposed nonlinearities vertical joins, which special nonlinear analysis type. Different from conventional Gauss iterative strategy alternating solution normal force tangential employed. parallelization based overlapping domain...
Hydraulic diffusivity is a fundamental parameter in studying groundwater flow. An analytical solution for flow within finite-length one-dimensional aquifer has been introduced. This simplifies the river water level (RWL) by piecewise linear function, accurately describing arbitrary variation pattern. inversion method hydraulic provided based on solution. Then, was employed to estimate of limestone Xiluodu reservoir and verified FEFLOW software. The sensitivity increases with RWL fast...