A coupled Cellular Automaton–Lattice Boltzmann model for grain structure simulation during additive manufacturing

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Rai A, Markl M, Körner C
Zeitschrift: Computational Materials Science
Verlag: Elsevier
Jahr der Veröffentlichung: 2016
Band: 124
Seitenbereich: 37-48
ISSN: 0927-0256
Sprache: Englisch


Abstract


A 2D coupled Cellular Automaton (CA)–Lattice Boltzmann (LB) model has been developed to simulate grain structure evolution during powder–bed–based, layer by layer, additive manufacturing (AM). The presented model includes algorithms for random powder layer generation, electron beam energy absorption, evaporation, capillarity and wetting, meltpool dynamics, its temperature evolution and face centered cubic grain solidification. The model is first validated against the experimental findings of single track electron beam melting and solidification of a baseplate and then applied to simulate the grain structure produced during AM. Influence of the hatching strategy on grain structure is presented as well as stray grain formation resulting from partially molten powder particles.



FAU-Autoren / FAU-Herausgeber

Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Markl, Matthias Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Rai, Abha Dr.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Zitierweisen

APA:
Rai, A., Markl, M., & Körner, C. (2016). A coupled Cellular Automaton–Lattice Boltzmann model for grain structure simulation during additive manufacturing. Computational Materials Science, 124, 37-48. https://dx.doi.org/10.1016/j.commatsci.2016.07.005

MLA:
Rai, Abha, Matthias Markl, and Carolin Körner. "A coupled Cellular Automaton–Lattice Boltzmann model for grain structure simulation during additive manufacturing." Computational Materials Science 124 (2016): 37-48.

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Zuletzt aktualisiert 2018-16-11 um 20:50