Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures

The purpose of this study was to evaluate the chemical and metallurgical aspects, mechanical properties and hardness of the NiCr dental alloy when it was submitted to different castings temperatures. An NiCr alloy was cast, with lost wax technique, 20 specimens, separated in two groups of 10 each on...

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Detalles Bibliográficos
Autores: Olivieri, Karina Andrea Novaes, Neisser, Maximiliano P., Souza, Paulo C. R., Bottino, Marco Antônio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:Brasil
Institución:Universidade Estadual de Campinas (UNICAMP)
Repositorio:Brazilian journal of oral sciences (Online)
Idioma:inglés
OAI Identifier:oai:ojs.periodicos.sbu.unicamp.br:article/8641737
Acceso en línea:https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641737
Access Level:acceso abierto
Palabra clave:NiCr alloy. Casting temperatures. Mechanical properties
Odontologia
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repository_id_str
spelling Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperaturesNiCr alloy. Casting temperatures. Mechanical propertiesOdontologiaThe purpose of this study was to evaluate the chemical and metallurgical aspects, mechanical properties and hardness of the NiCr dental alloy when it was submitted to different castings temperatures. An NiCr alloy was cast, with lost wax technique, 20 specimens, separated in two groups of 10 each one, in two different casting temperatures: a) in accordance with the manufactures´ instructions (T1); b) above manufactures´ instructions (T2). It was done chemical and metallographic analysis witch scanning electron microscope in the alloy in these conditions: no cast, T1 and T2. It was determined mechanical properties and hardness, too. The microstructures were similar to no cast, T1 and T2. There was no significant difference between chemical analysis and to mechanical properties. The hardness of the T1 and T2 groups was greater than no cast group. Clinically, it may predict that when elevated temperatures were used, above manufacture´s recommendations (more than 100ºC), there will be failures in the prosthesis, like porosities, fissures or cracks.Universidade Estadual de Campinas2015-11-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/864173710.20396/bjos.v3i8.8641737Brazilian Journal of Oral Sciences; v. 3 n. 8 (2004): Jan./Mar; 414-419Brazilian Journal of Oral Sciences; Vol. 3 No. 8 (2004): Jan./Mar; 414-4191677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPenghttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641737/9235info:eu-repo/semantics/openAccessOlivieri, Karina Andrea NovaesNeisser, Maximiliano P.Souza, Paulo C. R.Bottino, Marco Antônio2016-02-25T09:29:37Zoai:ojs.periodicos.sbu.unicamp.br:article/8641737Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2016-02-25T09:29:37Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
title Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
spellingShingle Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
Olivieri, Karina Andrea Novaes
NiCr alloy. Casting temperatures. Mechanical properties
Odontologia
title_short Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
title_full Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
title_fullStr Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
title_full_unstemmed Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
title_sort Mechanical properties and micro structural analysis of a NiCr alloy cast under different temperatures
dc.creator.none.fl_str_mv Olivieri, Karina Andrea Novaes
Neisser, Maximiliano P.
Souza, Paulo C. R.
Bottino, Marco Antônio
author Olivieri, Karina Andrea Novaes
author_facet Olivieri, Karina Andrea Novaes
Neisser, Maximiliano P.
Souza, Paulo C. R.
Bottino, Marco Antônio
author_role author
author2 Neisser, Maximiliano P.
Souza, Paulo C. R.
Bottino, Marco Antônio
author2_role author
author
author
dc.subject.por.fl_str_mv NiCr alloy. Casting temperatures. Mechanical properties
Odontologia
topic NiCr alloy. Casting temperatures. Mechanical properties
Odontologia
description The purpose of this study was to evaluate the chemical and metallurgical aspects, mechanical properties and hardness of the NiCr dental alloy when it was submitted to different castings temperatures. An NiCr alloy was cast, with lost wax technique, 20 specimens, separated in two groups of 10 each one, in two different casting temperatures: a) in accordance with the manufactures´ instructions (T1); b) above manufactures´ instructions (T2). It was done chemical and metallographic analysis witch scanning electron microscope in the alloy in these conditions: no cast, T1 and T2. It was determined mechanical properties and hardness, too. The microstructures were similar to no cast, T1 and T2. There was no significant difference between chemical analysis and to mechanical properties. The hardness of the T1 and T2 groups was greater than no cast group. Clinically, it may predict that when elevated temperatures were used, above manufacture´s recommendations (more than 100ºC), there will be failures in the prosthesis, like porosities, fissures or cracks.
publishDate 2015
dc.date.none.fl_str_mv 2015-11-13
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641737
10.20396/bjos.v3i8.8641737
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641737
identifier_str_mv 10.20396/bjos.v3i8.8641737
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641737/9235
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Estadual de Campinas
publisher.none.fl_str_mv Universidade Estadual de Campinas
dc.source.none.fl_str_mv Brazilian Journal of Oral Sciences; v. 3 n. 8 (2004): Jan./Mar; 414-419
Brazilian Journal of Oral Sciences; Vol. 3 No. 8 (2004): Jan./Mar; 414-419
1677-3225
reponame:Brazilian journal of oral sciences (Online)
instname:Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
instname_str Universidade Estadual de Campinas (UNICAMP)
instacron_str UNICAMP
institution UNICAMP
reponame_str Brazilian journal of oral sciences (Online)
collection Brazilian journal of oral sciences (Online)
repository.name.fl_str_mv Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)
repository.mail.fl_str_mv brjorals@fop.unicamp.br||brjorals@fop.unicamp.br
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score 15.301603

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