The effect of adding boron in solidification microstructure of dilute iron-carbon alloy as assessed by phase-field modeling

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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.accessioned2019-11-06T13:23:53Z-
Data de disponibilização: dc.date.available2019-11-06T13:23:53Z-
Data de envio: dc.date.issued2012-06-05-
Data de envio: dc.date.issued2012-06-05-
Data de envio: dc.date.issued2011-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/123456789/814-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/554550-
Descrição: dc.descriptionAlloying element like boron, even in small addition, is well known to improve hardenability of steels. Its application can improve mechanical properties of steels and reduce alloying costs. Despite these benefits is not easy to cast boron steels, mainly in dynamical solidification process like continuous casting, due to their crack susceptibility 1,2 . The strategy of using Phase-Field simulation of the solidification process is based on its proved capacity of predicting realistic microstructure that emerge during solidification under conditions even far from equilibrium 3-5 . Base on this, some comparative simulations were performed using a three component dilute alloy in a two dimensional domain under unconstrained (isothermal) and constrained (directional) solidification. Simulation results suggested two fragile mechanisms: one related to a deep dendritic primary arms space and other due to the remelting of this region at low temperature. Both resulted mainly from the high boron segregation in interdendritic regions.-
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.subjectSolidification-
Palavras-chave: dc.subjectDilute alloys-
Palavras-chave: dc.subjectBoron-
Palavras-chave: dc.subjectFe-C alloys-
Título: dc.titleThe effect of adding boron in solidification microstructure of dilute iron-carbon alloy as assessed by phase-field modeling-
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