Godwal, U;
Bhagavath, S;
Ghaffari, B;
Li, M;
Lee, PD;
Karagadde, S;
(2023)
Numerical modelling of porosity with combined gas and shrinkage effects in HPDC.
IOP Conference Series: Materials Science and Engineering
, 1274
(1)
, Article 012028. 10.1088/1757-899x/1274/1/012028.
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Abstract
High-pressure die casting is a manufacturing process in which near-net-shape components are produced rapidly under a pressurized environment. However, due to the relatively higher cooling rate prevailing during the process, isolated liquid pockets form at certain locations, leading to increased porosity formation. A one-dimensional deformable grid numerical model has been developed for predicting the evolution of a single pore in an elementary volume, which combines the diffusion model with the shrinkage affected growth. The model accounts for the change in pore size due to shrinkage and inter-granular growth. This model can provide predictions in representative volumes and be used for component level predictions by combining with a macroscopic model.
| Type: | Article |
|---|---|
| Title: | Numerical modelling of porosity with combined gas and shrinkage effects in HPDC |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1757-899x/1274/1/012028 |
| Publisher version: | https://doi.org/10.1088/1757-899x%2F1274%2F1%2F012... |
| Language: | English |
| Additional information: | © 2023 IOP Publishing. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10172881 |
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