A5026563146- Additive Manufacturing Materials and Processes
- Welding Techniques and Residual Stresses
- High Entropy Alloys Studies
- Additive Manufacturing and 3D Printing Technologies
- Aluminum Alloy Microstructure Properties
- Aluminum Alloys Composites Properties
- Microstructure and mechanical properties
- Magnesium Alloys: Properties and Applications
- Advanced Welding Techniques Analysis
- Metal Forming Simulation Techniques
- Metal Alloys Wear and Properties
University of New Hampshire
2022-2025
University of New Hampshire at Manchester
2024
The King's College
2023
The effects of laser powder bed fusion (LPBF) parameters, such as power (200 to 350 W) and scan speeds (from 200 2000 mm/s), on the microstructure mechanical properties high-strength, low-alloy (HSLA) AISI 4340 steel were examined. A wide range volumetric energy density (VED) between 93 162 J/mm3 produced samples with relative densities greater than 99.8%. optimal parameter set was identified = W, speed 600 mm/s, hatch spacing 0.12 mm, slice thickness 0.03, corresponding VED 92.6 J/mm3....
In this laser powder bed fusion (LPBF) study for 316 L stainless steel (316 SS), the scan speed was varied to produce samples with keyhole (KH) and lack of (LoF) flaws, each three levels density (i.e., >97%, ∼98%, ∼99%). KH LoF flaws were characterized by circularity, size, aspect ratio from extensive image analysis optical micrographs. The tested in uniaxial tension correlate flaw characteristics yield strength (YS), ultimate tensile (UTS), elongation at failure (EL%). Results showed that...
Careful consideration of processing parameters to mitigate defect formation is crucial ensure reliability components produced by laser powder bed fusion (LPBF). In this work, additive manufacturing parameter optimization and flaw type dependent tensile properties 15‐5 precipitation hardened (PH) stainless steel LPBF examined understand the correlation among parameters, types, corresponding mechanical behavior. It reported that samples with keyhole (KH) pores exhibit superior compared those...
Additive manufacturing (AM) has enabled production of engineering components with complex geometries having superior mechanical properties than those produced using traditional methods. Particularly for steels high hardness and strength, it is impractical to work harden refine the microstructure an as-fabricated component. Therefore, utilization AM techniques could enable creation optimization microstructures within intricate parts that were previously unattainable. In this study, low (~ 0.2...