Microstructure, phase morphology, eutectic coupled zone and hardness of Al–Co alloys

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual de Campinas (UNICAMP)-
Autor(es): dc.contributorSão Paulo State Faculty of Technology – FATEC-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.creatorSilva, Cássio A.P.-
Autor(es): dc.creatorKakitani, Rafael-
Autor(es): dc.creatorCanté, Manuel V.-
Autor(es): dc.creatorBrito, Crystopher [UNESP]-
Autor(es): dc.creatorGarcia, Amauri-
Autor(es): dc.creatorSpinelli, José E.-
Autor(es): dc.creatorCheung, Noé-
Data de aceite: dc.date.accessioned2022-02-22T00:27:15Z-
Data de disponibilização: dc.date.available2022-02-22T00:27:15Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.matchar.2020.110617-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199395-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199395-
Descrição: dc.descriptionThis study examines the roles played by crystal growth rates (V) and cooling rates (Ṫ) on the microstructural evolutions of hypoeutectic (0.7 wt% Co), eutectic (1.0 wt% Co) and hypereutectic (1.5 wt% Co) Al–Co alloys. For this, these alloys have been directionally solidified by using a transient heat flow setup. It is shown that the microstructures of the 0.7 and 1.0 Co alloys are formed by α-Al matrices. In these alloys, a morphological reverse transition from α-Al matrix dendrites to cells is observed while a α-Al/ Al9Co2 eutectic mixture is also contained. In the Al- 1.5 wt% Co alloy, the prevalence of eutectic features occurs. Experimental growth laws relating cellular, dendritic and eutectic spacings to V and Ṫ are determined. Plots relating V and Ṫ to the alloys Co contents are proposed. The latter allow the range of coupled growth during transient solidification of Al–Co alloys to be examined. The hypereutectic alloy (1.5 wt% Co) demonstrates increase of about 41% in hardness as compared to the other examined alloys.-
Descrição: dc.descriptionDepartment of Manufacturing and Materials Engineering University of Campinas- UNICAMP-
Descrição: dc.descriptionCampus Zona Leste São Paulo State Faculty of Technology – FATEC-
Descrição: dc.descriptionCampus of São João da Boa Vista São Paulo State University - UNESP-
Descrição: dc.descriptionDepartment of Materials Engineering Federal University of São Carlos - UFSCar-
Descrição: dc.descriptionCampus of São João da Boa Vista São Paulo State University - UNESP-
Idioma: dc.languageen-
Relação: dc.relationMaterials Characterization-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAl-composite-
Palavras-chave: dc.subjectAl–Co alloys-
Palavras-chave: dc.subjectMicrohardness-
Palavras-chave: dc.subjectMicrostructure-
Palavras-chave: dc.subjectSolidification-
Título: dc.titleMicrostructure, phase morphology, eutectic coupled zone and hardness of Al–Co alloys-
Tipo de arquivo: dc.typelivro digital-
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