Two-dimensional simulation of grain structure growth within selective laser melted AA-2024
ABSTRACT: A two-dimensional Cellular Automata (CA) – Finite Element (FE) (CA-FE) coupled model has been developed to predict the microstructures formed during the laser melting of a powdered AA-2024 feedstock using the Additive Manufacturing (AM) process Selective Laser Melting (SLM). The present...
| Autores principales: | , , , , |
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| Formato: | Artículo |
| Lenguaje: | inglés |
| Publicado: |
2016
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| Materias: | |
| Acceso en línea: | http://eprints.uanl.mx/18166/1/451.pdf |
| _version_ | 1824415152712187904 |
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| author | López Botello, Omar Eduardo Martínez Hernández, Uriel Ramírez, José Pinna, Christophe Mumtaz, Kamran |
| author_facet | López Botello, Omar Eduardo Martínez Hernández, Uriel Ramírez, José Pinna, Christophe Mumtaz, Kamran |
| author_sort | López Botello, Omar Eduardo |
| collection | Repositorio Institucional |
| description | ABSTRACT:
A two-dimensional Cellular Automata (CA) – Finite Element (FE) (CA-FE) coupled model has been developed to
predict the microstructures formed during the laser melting of a powdered AA-2024 feedstock using the Additive
Manufacturing (AM) process Selective Laser Melting (SLM). The presented CA model is coupled with a thermal FE
model, which computes the heat flow characteristics of the SLM process. The developed model considers the
powder-to-liquid-to-solid transformation, tracks the interaction between several melt pools within a melted
track, and several tracks within various layers. It was found that the calculated temperature profiles as well as
the simulated microstructures bared close resemblance with SLM fabricated AA-2024 samples. The developed
model was capable of predicting melt pool cooling and solidification rates, the type of microstructure obtained,
the size of the melt pool (with 14% error) and the heat affected zone, average grain size number (with 12%
error) and the growth competition present in microstructures of components manufactured via SLM. |
| format | Article |
| id | eprints-18166 |
| institution | UANL |
| language | English |
| publishDate | 2016 |
| record_format | eprints |
| spelling | eprints-181662020-05-22T17:14:52Z http://eprints.uanl.mx/18166/ Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 López Botello, Omar Eduardo Martínez Hernández, Uriel Ramírez, José Pinna, Christophe Mumtaz, Kamran T Tecnología en General ABSTRACT: A two-dimensional Cellular Automata (CA) – Finite Element (FE) (CA-FE) coupled model has been developed to predict the microstructures formed during the laser melting of a powdered AA-2024 feedstock using the Additive Manufacturing (AM) process Selective Laser Melting (SLM). The presented CA model is coupled with a thermal FE model, which computes the heat flow characteristics of the SLM process. The developed model considers the powder-to-liquid-to-solid transformation, tracks the interaction between several melt pools within a melted track, and several tracks within various layers. It was found that the calculated temperature profiles as well as the simulated microstructures bared close resemblance with SLM fabricated AA-2024 samples. The developed model was capable of predicting melt pool cooling and solidification rates, the type of microstructure obtained, the size of the melt pool (with 14% error) and the heat affected zone, average grain size number (with 12% error) and the growth competition present in microstructures of components manufactured via SLM. 2016-10-17 Article PeerReviewed text en cc_by_nc_nd http://eprints.uanl.mx/18166/1/451.pdf http://eprints.uanl.mx/18166/1.haspreviewThumbnailVersion/451.pdf López Botello, Omar Eduardo y Martínez Hernández, Uriel y Ramírez, José y Pinna, Christophe y Mumtaz, Kamran (2016) Two-dimensional simulation of grain structure growth within selective laser melted AA-2024. Materials & Design, 113. pp. 369-376. ISSN 02641275 http://doi.org/10.1016/j.matdes.2016.10.031 doi:10.1016/j.matdes.2016.10.031 |
| spellingShingle | T Tecnología en General López Botello, Omar Eduardo Martínez Hernández, Uriel Ramírez, José Pinna, Christophe Mumtaz, Kamran Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 |
| thumbnail | https://rediab.uanl.mx/themes/sandal5/images/online.png |
| title | Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 |
| title_full | Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 |
| title_fullStr | Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 |
| title_full_unstemmed | Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 |
| title_short | Two-dimensional simulation of grain structure growth within selective laser melted AA-2024 |
| title_sort | two dimensional simulation of grain structure growth within selective laser melted aa 2024 |
| topic | T Tecnología en General |
| url | http://eprints.uanl.mx/18166/1/451.pdf |
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