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Panwisawas, Chinnapat
Queen Mary University of London
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (22/22 displayed)
- 2024Pore evolution mechanisms during directed energy deposition additive manufacturingcitations
- 2024Pore evolution mechanisms during directed energy deposition additive manufacturing
- 2023Multi-length-scale study on the heat treatment response to supersaturated nickel-based superalloyscitations
- 2022Development, characterisation, and modelling of processability of nitinol stents using laser powder bed fusioncitations
- 2021Ultra-high temperature deformation in a single crystal superalloycitations
- 2021High Entropy Alloys as Filler Metals for Joiningcitations
- 2020Relating micro-segregation to site specific high temperature deformation in single crystal nickel-base superalloy castingscitations
- 2018Mean-field modelling of the intermetallic precipitate phases during heat treatment and additive manufacture of Inconel 718citations
- 2018History dependence of the microstructure on time-dependent deformation during in-situ cooling of a nickel-based single crystal superalloycitations
- 2018A computational study on the three-dimensional printability of precipitate-strengthened nickel-based superalloyscitations
- 2017The contrasting roles of creep and stress relaxation in the time-dependent deformation during in-situ cooling of a nickel-base single crystal superalloycitations
- 2017Keyhole formation and thermal fluid flow-induced porosity during laser fusion welding in titanium alloyscitations
- 2017Mesoscale modelling of selective laser meltingcitations
- 2016Porosity formation in laser welded Ti-6Al-4V Alloy: modelling and validation
- 2016Linking a CFD and FE analysis for Welding Simulations in Ti-6Al-4V
- 2016Linking a CFD and FE analysis for Welding Simulations in Ti-6Al-4V
- 2016An integrated modelling approach for predicting process maps of residual stress and distortion in a laser weldcitations
- 2015On the role of thermal fluid dynamics into the evolution of porosity during selective laser meltingcitations
- 2015On the role of melt flow into the surface structure and porosity development during selective laser meltingcitations
- 2013Modelling and prediction of recrystallisation in single crystal superalloys
- 2012Prediction of plastic strain for recrystallisation during investment casting of single crystal superalloyscitations
- 2011Numerical modelling of stress and strain evolution during solidification of a single crystal superalloycitations
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article
On the role of thermal fluid dynamics into the evolution of porosity during selective laser melting
Abstract
<p>Thermal fluid dynamics and experiments have been used to study the evolution of pores during selective laser melting of Ti-6Al-4V. Scanning electron micrographs show that the morphology of pores changed from near-spherical to elongated shape as the laser scan speed increased. Computational fluid dynamics suggests that this is caused by the change of flow pattern in the melt pool which is dictated by forces such as vapour pressure, gravitational force, capillary and thermal capillary forces exerted on the metallic/gaseous interface.</p>