A5101936985- Welding Techniques and Residual Stresses
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- High Entropy Alloys Studies
- Advanced Welding Techniques Analysis
- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- Hydrogen embrittlement and corrosion behaviors in metals
- Non-Destructive Testing Techniques
- Aluminum Alloy Microstructure Properties
- Metal Alloys Wear and Properties
- Laser and Thermal Forming Techniques
- Vacuum and Plasma Arcs
- Microstructure and mechanical properties
- Titanium Alloys Microstructure and Properties
- Microstructure and Mechanical Properties of Steels
Cranfield University
2017-2020
Harbin Engineering University
2014-2015
Wire + Arc Additive Manufacturing (WAAM) can be used to create large free-form components out of specialist materials such as nickel-base superalloys. Inconel (IN) 718 is well suited for the WAAM process due its excellent weldability. However, during deposition, IN718 susceptible micro-segregation, leading undesirable Laves phase formation in interdendritic regions. Further, encourages columnar grain growth and development a strong fibre texture, anisotropy structure. This unfavourable...
Wire + arc additive manufacture (WAAM) was applied to produce INCONEL 718 superalloy (IN718) components in a layer by manner; further, interpass cold rolling introduced generate in-process thermomechanical processing effect during the deposition process. Mechanical testing showed that with applied, strength of solution plus aging treated WAAM IN718 improved from 1056 MPa (unrolled) 1351 (rolled) which met wrought standard (1276 MPa), and material anisotropy eliminated. The unrolled featured...
The manufacture of structural components made from nickel-based super alloys would benefit the commercial advantages Wire + Arc Additive Manufacturing (WAAM), as it is commonly expensive to process using other conventional techniques. two major challenges WAAM are residual stress and undesired microstructure. Residual causes part distortion build failures, while as-deposited microstructure does not allow common heat-treatment be effective in achieving desired mechanical properties. This...
A 3D finite element model of heat and fluid flow in welding pool considering free surface the traveling speed has been developed. To validate predictivity, numerical experimental sensitivity analyses were conducted using a design experiments approach. The method FEM is used to compute all governing equations method' front tracking' solve capillarity problems on surface. effects current, voltage, geometry weld studied. comparison these results, values effects, showed an acceptable correlation...