A5073026033- Microstructure and Mechanical Properties of Steels
- Metal Alloys Wear and Properties
- Microstructure and mechanical properties
- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Ferroelectric and Piezoelectric Materials
- Advanced Welding Techniques Analysis
- Advanced Materials Characterization Techniques
- Fusion materials and technologies
- Manufacturing Process and Optimization
- High-pressure geophysics and materials
- Shape Memory Alloy Transformations
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Advanced materials and composites
- High-Temperature Coating Behaviors
- High Entropy Alloys Studies
- High-Velocity Impact and Material Behavior
- Magnetic Properties and Applications
University of Hong Kong
2018-2025
City University of Hong Kong, Shenzhen Research Institute
2018-2023
Chinese University of Hong Kong
2022
The inherent brittleness of ceramics, primarily due to restricted atomic motions from rigid ionic or covalent bonded structures, is a persistent challenge. This characteristic hinders dislocation nucleation in thereby impeding the enhancement plasticity through dislocation-engineering strategy commonly used metals. Finding that continuously generates dislocations within ceramics may enhance plasticity. Here, we propose "borrowing-dislocations" uses tailored interfacial structure with...
Abstract An anomalous high-strain-rate softening phenomenon was demonstrated in a high-strength quenching and partitioning (Q&P) steel. It found that the Q&P steel is caused by intrinsic carbon-dislocation interaction, rather than transformation induced plasticity effect, dislocation density difference, or adiabatic heating. The key mechanism ascribed to disappeared Cottrell drag force during deformation, which originates from interaction present quasi-static deformation.
A new microstructural design is proposed to develop a strong and ductile quenching partitioning (Q&P) steel with low yield ratio. This has heterogeneous dual phase microstructure which developed by varying austenite thermal stability through Mn segregation. The contains large grains contribute the strength. ultra-high tensile strength good ductility are ascribed enhanced strain hardening behaviour resulted from continuous transformation-induced plasticity (TRIP) effect. present enables...
Body-centered cubic (bcc) high-entropy alloys (HEAs) are promising structural materials for nuclear power plants to ensure good radiation resistance. However, the majority of bcc HEAs show limited room temperature ductility even in compression. In addition compressive properties as-cast high-activation collected from literature, those low-activation ones were investigated by phase diagram calculations and experiments. Therefore, a consistent dataset comprising 93 samples was generated. A...
The intricate microstructure serves as the cornerstone for composition/processing-structure-property (CPSP) connection in multiphase alloys. Traditional alloy design methods often overlook microstructural details, which diminishes reliability and effectiveness of outcomes. This study introduces an improved algorithm that integrates authentic information to establish precise CPSP relationships. approach utilizes a deep-learning framework based on variational autoencoder map real data latent...
In situ transient synchrotron Laue x-ray diffraction based on high-energy and broadband x rays under high strain-rate tensile loading was developed at a superconducting wiggler beamline the Beijing Synchrotron Radiation Facility. A split-Hopkinson bar is utilized to realize this dynamic condition, while captures internal structure of monocrystalline materials. Plastic deformation nickel specimen investigated prove ability instrumentation in characterization response materials during impact...