Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4

The structural evolution of the amorphous phase in Co72Nb24B4 composition was processed by casting furnace at the bow and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The evolution of the amorphous microstructure leads to the...

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Main Authors: Luciano Nascimento, Lourdes Cristina Lucena Agostinho Jamshidi, Celmy Maria B. de Menezes Barbosa
Format: Article
Language:English
Published: Universidade Estadual de Londrina 2016-03-01
Series:Semina: Ciências Exatas e Tecnológicas
Subjects:
Online Access:http://www.uel.br/revistas/uel/index.php/semexatas/article/view/21452
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author Luciano Nascimento
Lourdes Cristina Lucena Agostinho Jamshidi
Celmy Maria B. de Menezes Barbosa
author_facet Luciano Nascimento
Lourdes Cristina Lucena Agostinho Jamshidi
Celmy Maria B. de Menezes Barbosa
author_sort Luciano Nascimento
collection DOAJ
description The structural evolution of the amorphous phase in Co72Nb24B4 composition was processed by casting furnace at the bow and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The evolution of the amorphous microstructure leads to the creation of a group of materials with highly desirable properties with high mechanical strength, hardness and resistance to abrasion and corrosion. Furthermore, the considerable amount of formation of amorphous phase and a crystalline phase partial transformation during the melting process in arc furnaces have been disclosed. It was also found that, in casting occur powder morphology changes between the amorphous and crystalline phase, facilitating the emergence of intermetallic phases with slides, small regular crystals based on oxides and their size increases initially.
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spelling doaj.art-8110da6152fa42d8a10b8fdee72154ee2022-12-22T03:52:28ZengUniversidade Estadual de LondrinaSemina: Ciências Exatas e Tecnológicas1676-54511679-03752016-03-01371919810.5433/1679-0375.2016v37n1p9113040Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4Luciano Nascimento0Lourdes Cristina Lucena Agostinho Jamshidi1Celmy Maria B. de Menezes Barbosa2Centro de Tecnologia e Geociências- CTG/UFPECentro de Tecnologia e Geociências- CTG/UFPECentro de Tecnologia e Geociências- CTG/UFPEThe structural evolution of the amorphous phase in Co72Nb24B4 composition was processed by casting furnace at the bow and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The evolution of the amorphous microstructure leads to the creation of a group of materials with highly desirable properties with high mechanical strength, hardness and resistance to abrasion and corrosion. Furthermore, the considerable amount of formation of amorphous phase and a crystalline phase partial transformation during the melting process in arc furnaces have been disclosed. It was also found that, in casting occur powder morphology changes between the amorphous and crystalline phase, facilitating the emergence of intermetallic phases with slides, small regular crystals based on oxides and their size increases initially.http://www.uel.br/revistas/uel/index.php/semexatas/article/view/21452Fase AmorfaCaracterizaçãoFundiçãoCo72Nb24B4.
spellingShingle Luciano Nascimento
Lourdes Cristina Lucena Agostinho Jamshidi
Celmy Maria B. de Menezes Barbosa
Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4
Semina: Ciências Exatas e Tecnológicas
Fase Amorfa
Caracterização
Fundição
Co72Nb24B4.
title Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4
title_full Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4
title_fullStr Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4
title_full_unstemmed Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4
title_short Microstructural Evolution of Amorphous Phase in the Alloy Co72Nb24B4
title_sort microstructural evolution of amorphous phase in the alloy co72nb24b4
topic Fase Amorfa
Caracterização
Fundição
Co72Nb24B4.
url http://www.uel.br/revistas/uel/index.php/semexatas/article/view/21452
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