A5033285042- Solidification and crystal growth phenomena
- Metallic Glasses and Amorphous Alloys
- Aluminum Alloy Microstructure Properties
- High Entropy Alloys Studies
- Intermetallics and Advanced Alloy Properties
- High-Temperature Coating Behaviors
- Fluid Dynamics and Thin Films
- nanoparticles nucleation surface interactions
- Theoretical and Computational Physics
- Pickering emulsions and particle stabilization
- Advanced Welding Techniques Analysis
- Electronic Packaging and Soldering Technologies
- Advanced Semiconductor Detectors and Materials
- Phase-change materials and chalcogenides
- Semiconductor materials and interfaces
- Crystallization and Solubility Studies
- Chalcogenide Semiconductor Thin Films
- Shape Memory Alloy Transformations
- Microstructure and mechanical properties
- Additive Manufacturing Materials and Processes
Northwestern Polytechnical University
2009-2024
Liquid ternary Fe37Sn32Si31 monotectic alloy in bulk form has been undercooled by 305 K (0.18T L) the glass fluxing method. Macroscopic phase separation took place and led to formation of a top Fe-rich zone bottom Sn-rich zone. The large degree undercooling was found facilitate evolution macrosegregation. Dendritic growth characteristic primary FeSi compound an velocity up 0.42 m/s dendrite grains were efficiently refined increase level undercooling. solute trapping Sn atoms could not occur...
A self-consistent analytical model for predicting qualities of a joint welded by continuous drive friction welding (CDFW) was developed based on the Onsager-Ziegler maximum entropy production principle (OZ-MEPP), dislocation kinetics, and CDFW in our previous work. The microstructure mechanical properties friction-welded can be predicted requiring only geometric, thermal, physical parameters specimens without any assumed or premeasured response parameters. accuracy verified joints fabricated...
Dendrite growth within substantially undercooled liquid alloys is usually characterised by a very high velocity, even over 100 m/s. Here we report that dendrite becomes quite sluggish in highly Fe–8.5wt.%Sb alloy because it has broad solidification temperature range of 412 K. The measured velocity the dendritic α-Fe phase increases up to maximum only 1.38 m/s at 301 K undercooling. If this further 390 (0.22T L), decreases gradually. A structural morphology transition from coarse an equiaxed...