A5054023165- High Entropy Alloys Studies
- Microstructure and mechanical properties
- High-Temperature Coating Behaviors
- Additive Manufacturing Materials and Processes
- High Temperature Alloys and Creep
- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Advanced Materials Characterization Techniques
- Metal and Thin Film Mechanics
- Microstructure and Mechanical Properties of Steels
- Nuclear Materials and Properties
- Intermetallics and Advanced Alloy Properties
- Magneto-Optical Properties and Applications
- Nanoporous metals and alloys
- Aluminum Alloy Microstructure Properties
- Ion-surface interactions and analysis
- Magnetic Properties and Synthesis of Ferrites
- Traffic Prediction and Management Techniques
- Advanced Computational Techniques and Applications
- Hydraulic Fracturing and Reservoir Analysis
- Nanocluster Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Drilling and Well Engineering
- Rock Mechanics and Modeling
- Lubricants and Their Additives
Hunan University
2019-2024
Tsinghua University
2024
Foton Motors (China)
2022
The increasingly harsh environment of the nuclear reactors and insurmountable flaws in-service materials have created an urgent need for development brand-new alloys. For last decade, high-entropy alloys (HEAs), a novel composition-design strategy, received much attention due to their promise fields. application multiscale modelling is explore irradiation performance underlying mechanisms HEAs. Abundant results data deepen understanding response, accelerate advanced irradiation-resistant...
Upon ageing of a defect-ridden metal, compositional segregation to dislocations and stacking faults is well known elevate strength. However, such Suzuki effects deliver strength increment merely on the order 10 MPa for many substitutional face-centered-cubic solid solutions. Severe pre-deformation can lead significant hardening but sacrifices large tensile ductility after subsequent aging. Here we propose novel strategy improve effect in single-phase CoCrNi alloy by carefully controlling...
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
Introducing precipitates significantly improves the strength of metallic materials. In present study, we elucidate role a precipitated Ti phase on deformation mechanism in nanocrystalline Ta through atomistic simulations and transmission electron microscopy characterisation. particular, Ti/Ta composites have high yielding flow stress compared to precipitation-free Ta. Especially, forward hard precipitate drives lattice rotation, which then increases further plasticity Ta/Ti composites....
Exploring the interactions between precipitates and grain boundaries (GBs) is of great important to tailor high-temperature stability mechanical property precipitate hardened alloys. However, influence on GB at nanoscale still uncovered in high entropy In this work, we investigate effects size temperature migration using molecular dynamic simulations. The results show that improved with increase size, especially low temperatures. Compared traditional dilute alloys, strong atomic lattice...
Refractory multiple principal elemental alloys (RMPEAs) show the excellent combinations of mechanical properties and oxidation resistance, are considered most promising as structural materials for aerospace industries gas turbine. However, quantitative contribution microstructure on strength deformation mechanisms remains challenging at micrometer scale. In this work, we capture lattice distortion chemical short-range order (CSRO) using atomic simulation, introduce them into hierarchical...
In-depth understanding of grain boundaries (GBs) in multi-principal element alloys (MPEAs) is significant for designing MPEAs by GB engineering. This work explores the nanoscale structure and migration mechanism using atomic simulations. The GB-roughening transformation observed as mixing entropy increases, effect confirmed thermodynamic analysis. entropy-induced transition proved: 1) “concentrated shuffling mechanism” controls ordered GBs low-entropy systems, leads to obviously stepwise...