Probabilistic Simulation of Solidification Microstructure Evolution During Laser-Based Metal Deposition

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dc.creatorZhang, Jingwei
dc.creatorLiou, Frank
dc.creatorSeufzer, William
dc.creatorNewkirk, Joseph
dc.creatorFan, Zhiqiang
dc.creatorLiu, Heng
dc.creatorSparks, Todd E.
dc.date.accessioned2021-10-11T22:26:10Z
dc.date.available2021-10-11T22:26:10Z
dc.date.issued2013-08-16
dc.description.abstractA predictive model, based on a Cellular Automaton (CA) - Finite Element (FE) method, has been developed to simulate microstructure evolution during metal solidification for a laser based additive manufacturing process. The macroscopic FE calculation was designed to update the temperature field and simulate a high cooling rate. In the microscopic CA model, heterogeneous nucleation sites, preferential growth orientation and dendritic grain growth kinetics were simulated. The CA model was able to show the entrapment of neighboring cells and the relationship between undercooling and the grain growth rate. The model predicted the dendritic grain size, structure, and morphological evolution during the solidification phase of the deposition process. Model parameters for the simulations were based on stainless steel 316 (SS 316).en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/88668
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/15602
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2013 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectmicrostructure evolutionen_US
dc.subjectmetal solidificationen_US
dc.subjectlaser based additive manufacturingen_US
dc.subjectCellular Automaton - Finite Elementen_US
dc.subjectmetal depositionen_US
dc.titleProbabilistic Simulation of Solidification Microstructure Evolution During Laser-Based Metal Depositionen_US
dc.typeConference paperen_US

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