Journal article 270 views
The dynamics of reinforced particle migration in laser powder bed fusion of Ni-based composite
Quanquan Han,
Kenny Low,
Yuchen Gu,
Xiaobo Wang,
Liqiao Wang,
Bo Song,
Chuanzhen Huang,
Rossitza Setchi
Powder Technology, Volume: 394, Pages: 714 - 723
Swansea University Authors: Kenny Low, Yuchen Gu
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DOI (Published version): 10.1016/j.powtec.2021.09.005
Abstract
The dynamics of the reinforced particles' migration remains unclear during the rapid non-equilibrium laser powder bed fusion (LPBF) process. Conducting real-time observations to obtain a comprehensive understanding of the reinforcements' movement is challenging due to the complex physical...
| Published in: | Powder Technology |
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| ISSN: | 0032-5910 |
| Published: |
Elsevier BV
2021
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa58371 |
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| Abstract: |
The dynamics of the reinforced particles' migration remains unclear during the rapid non-equilibrium laser powder bed fusion (LPBF) process. Conducting real-time observations to obtain a comprehensive understanding of the reinforcements' movement is challenging due to the complex physical phenomena that occur during experimentation. The proposed numerical simulation in the present study incorporates a Lagrangian discrete phase model (DPM) to simulate the added submicrometre-sized TiC particles. The simulation results indicate that the migration of TiC particles was primarily induced by the combination of recoil pressure and Marangoni convection force. The TiC particles were also noted to be relatively uniformly distributed in the LPBF-fabricated Hastelloy X-1 wt% TiC composite under a 600 mm/s scanning speed. The present study offers insights into understanding the dynamics of added reinforced phases within the LPBF additive-manufacturing process to further accelerate the development of advanced metal matrix composites processed using the LPBF process. |
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| Item Description: |
Accepted post-print version available at https://orca.cardiff.ac.uk/144073/ |
| Keywords: |
Laser powder bed fusion; Ni-based composite; Hastelloy X; Numerical simulation; Particles migration |
| College: |
Faculty of Science and Engineering |
| Start Page: |
714 |
| End Page: |
723 |