A5100645449- Shape Memory Alloy Transformations
- Titanium Alloys Microstructure and Properties
- High Entropy Alloys Studies
- Nanoporous metals and alloys
- Microstructure and Mechanical Properties of Steels
- Magnetic and transport properties of perovskites and related materials
- Paleontology and Evolutionary Biology
- Job Satisfaction and Organizational Behavior
- Cellular and Composite Structures
- Occupational Health and Safety Research
- Metallic Glasses and Amorphous Alloys
- Advanced Materials Characterization Techniques
- Workplace Health and Well-being
University of Antwerp
2015-2021
South China University of Technology
2015-2020
Porous Ni50.8Ti49.2 bulk material was prepared by powder metallurgy sintering. Solid solution and aging treatments were applied to improve the phase homogeneity transformation behavior. Scanning transmission electron microscopy, aided energy dispersive X-ray analysis, used study microstructure chemical content of alloys. In-situ cooling carried out observe As-received contains dispersed Ni2Ti4O particles while Ni4Ti3 precipitates appear after aging. Close pore edges, latter have a...
A porous Ni50.8Ti49.2 shape memory alloy prepared by space holder assisted conventional sintering has been characterized via the micro-computed tomography (micro-CT). After proper image processing to remove artifacts from original reconstructed slices, three-dimensional visualization, together with size, and local structure of pores have obtained volume. Primary a volume fraction 20.2% duplicate size morphology particles between elemental nickel titanium powders as raw materials, segment...
A new application which focuses on an artificial sphincter fabricated by Ni-Ti SMAs for human implantation is under investigation applying the all-round shape memory effect with precise control of phase transformation temperatures. In this study, a Ni51at.%-Ti alloy was arc melting fast solidification, followed proper strained aging induces two way needed particular application. Differential scanning calorimetry used to investigate thermal behavior and transmission electron microscopy...
A three-dimensional configuration of Ni4Ti3 network in a porous Ni50.8Ti49.2 alloy has been reconstructed by slice-and-view Focused Ion Beam/Scanning Electron Microscope. Parallel precipitates are found to grow alongside surface micro-pore while nano-voids do not affect their growth. Dense occupies 54% the volume Austenite matrix. Their small average local thickness and interspace around 50 nanometers allow coherency with matrix, further induce R-phase (a Martensite phase) transformation...