- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Electronic Packaging and Soldering Technologies
- High Entropy Alloys Studies
- Aluminum Alloys Composites Properties
- 3D IC and TSV technologies
- Welding Techniques and Residual Stresses
- Advanced materials and composites
- High-Temperature Coating Behaviors
- Titanium Alloys Microstructure and Properties
- Advanced Welding Techniques Analysis
- Bone Tissue Engineering Materials
- Intermetallics and Advanced Alloy Properties
- Magnesium Alloys: Properties and Applications
- Advanced ceramic materials synthesis
- Carbon Nanotubes in Composites
- Metal and Thin Film Mechanics
- Manufacturing Process and Optimization
- Advanced Sensor and Energy Harvesting Materials
- Nanofabrication and Lithography Techniques
- Laser Material Processing Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Piezoelectric Actuators and Control
- Semiconductor materials and interfaces
- Aluminum Alloy Microstructure Properties
Agency for Science, Technology and Research
2009-2025
Singapore Institute of Manufacturing Technology
2015-2024
Dali University
2024
Simulation Technologies (United States)
2022-2023
National University of Singapore
2002-2009
Institute of High Performance Computing
2009
Singapore Institute of Technology
2003-2004
The microstructure and tensile properties of selective laser melted (SLM) Inconel 718 alloy were studied in the as-printed different heat treat conditions. SLM as-print microstructures exhibited columnar grain structures with very fine dendritic structure segregation elements. Apart from standard treatment, three other cycle variants carried out an attempt to remove extensive elements modify textured microstructure. Increasing homogenization temperature reduced coarsened structure. However,...
An equiatomic CoCrFeNiMn high-entropy alloy (HEA) powder is produced by vacuum induction melting gas-atomization with argon gas. A detailed characterization reveals that gas atomized HEA suitable for powder-bed-fusion additive manufacturing (PBFAM). Therefore, the size ranging from 45 to 106 μm applied in one of PBFAM, electron beam (EBM). The final EBM part strongly affected feedstock. entrapped pores result a high porosity EBM-built parts, requesting extra efforts eliminate processing...
An interstitial solute strengthened high entropy alloy (iHEA), Fe49.5Mn30Co10Cr10C0.5 (at.%), was successfully additively manufactured via selective laser melting. The as-built iHEA exhibits a hierarchically heterogeneous microstructure with length scales across several orders of magnitude, which engenders an enhanced strength–ductility combination relative to those fabricated by conventional processing routes. yield strength mainly stemmed from the dislocation strengthening besides friction...
The research community has recently been captivated by the atomic-scale short-range order observed in high- and medium-entropy alloys. However, significant challenges persist improving mechanical performance through manipulation of order. Herein, molecular dynamics simulations are employed to establish correlation between this ordering chemical composition for Cr–Co–Ni It is demonstrated that clustering can be tailored adjusting composition. Particularly, it promoted decreasing content...
In this study, the flow characteristics and behaviors of virgin recycled Inconel powder for powder-bed additive manufacturing (AM) were studied using different characterization techniques. The results revealed that particle size distribution (PSD) selective laser melting (SLM) process is typically in range from 15 μm to 63 μm. rate around 28 s·(50 g)−1. addition, packing density was found be 60%. rheological test indicate has reasonably good flowability compared with powder. inter-relation...
Several challenges are involved in employing fusion-based additive manufacturing (AM) technologies for magnesium (Mg) alloys. In this study, a novel 3D printing (3DP) technique was used to additively manufacture green component made of Mg-5.9Zn-0.13Zr powder at ambient temperature that can be densified during subsequent liquid phase sintering, obtaining functional part with zero process contaminants. Density measurement, microstructural, and mechanical investigations the components sintered...