Numerical simulation of solute trapping phenomena using phase-field solidification model for dilute binary alloys

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorFurtado, Henrique Silva-
Autor(es): dc.creatorBernardes, Américo Tristão-
Autor(es): dc.creatorMachado, Romuel Figueiredo-
Autor(es): dc.creatorSilva, Carlos Antônio da-
Data de aceite: dc.date.accessioned2019-11-06T13:23:54Z-
Data de disponibilização: dc.date.available2019-11-06T13:23:54Z-
Data de envio: dc.date.issued2012-06-05-
Data de envio: dc.date.issued2012-06-05-
Data de envio: dc.date.issued2009-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/123456789/819-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/554554-
Descrição: dc.descriptionNumerical simulation of solute trapping phenomena using phase-field solidification model for dilute binary alloys Numerical simulation of solute trapping during solidification, using two phase-field model for dilute binary alloys developed by Kim et al. [Phys. Rev. E, 60, 7186 (1999)] and Ramirez et al. [Phys. Rev. E, 69, 05167 (2004)] is presented here. The simulations on dilute Cu-Ni alloy are in good agreement with one dimensional analytic solution of sharp interface model. Simulation conducted under small solidification velocity using solid liquid interface thickness (2λ) of 8 nanometers reproduced the solute (Cu) equilibrium partition coefficient. The spurious numerical solute trapping in solid phase, due to the interface thickness was negligible. A parameter used in analytical solute trapping model was determined by isothermal phase-field simulation of Ni-Cu alloy. Its application to Si-As and Si-Bi alloys reproduced results that agree reasonably well with experimental data. A comparison between the three models of solute trapping (Aziz, Sobolev and Galenko [Phys. Rev. E, 76, 031606 (2007)]) was performed. It resulted in large differences in predicting the solidification velocity for partition-less solidification, indicating the necessity for new and more acute experimental data.-
Idioma: dc.languageen-
Direitos: dc.rightsAutorização concedida ao Repositório Institucional da UFOP pelo Periódico Materials Research em 25/10/2013 para depositar uma cópia eletrônica dos artigos publicados por esse periódico em que ao menos um dos autores é aluno ou professor da UFOP.-
Palavras-chave: dc.subjectPhase- Field-
Palavras-chave: dc.subjectSolute trapping-
Palavras-chave: dc.subjectDilute alloys-
Palavras-chave: dc.subjectSolidification-
Título: dc.titleNumerical simulation of solute trapping phenomena using phase-field solidification model for dilute binary alloys-
Aparece nas coleções:Repositório Institucional - UFOP

Não existem arquivos associados a este item.