Non-Equilibrium Phase Field Model Using Thermodynamics Data Estimated by Machine Learning for Additive Manufacturing Solidification

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dc.creatorNomoto, Sukeharu
dc.creatorSegawa, Masahito
dc.creatorWakameda, Hiroshi
dc.date.accessioned2021-11-15T20:58:39Z
dc.date.available2021-11-15T20:58:39Z
dc.date.issued2018
dc.description.abstractA multi-phase field method using finite interface dissipation model proposed by Steinbach et al. is applied to simulate solidification microstructure evolution of stainless steel composition in the non-equilibrium condition of high cooling rate and temperature gradient of additive manufacturing. The calculation is performed for quinary system in order to simulate solidification of engineering composition. Thermodynamic calculation using CALPHAD database in this multi-phase field method calculation is replaced by machine learning prediction procedure to reduce calculation time. The microstructure evaluated by using machine learning parameter is good agreement with one directly coupled with CALPHAD database. This calculation is approximately five times faster than the direct CALPHAD calculation method. Finally, it is confirmed that this multi-phase field method can be applicable to simulate non-equilibrium phase transformation of additive manufacturing condition with high numerical stabilization.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90269
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17190
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectmulti-phase field methoden_US
dc.subjectnon-equilibriumen_US
dc.subjectthermodynamicsen_US
dc.subjectmachine learningen_US
dc.subjectstainless steelen_US
dc.subjectsolidificationen_US
dc.subjectadditive manufacturingen_US
dc.titleNon-Equilibrium Phase Field Model Using Thermodynamics Data Estimated by Machine Learning for Additive Manufacturing Solidificationen_US
dc.typeConference paperen_US

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2018 International Solid Freeform Fabrication Symposium