Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Matéria (Rio de Janeiro. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000300362 |
Resumo: | ABSTRACT The use of Ti-Ni memory alloys covers several fields of application such as medicine, dentistry, actuators, sensors among others. Because of the thermomechanical behavior of these materials, they are an object of continuous studies and their properties are related to the occurrence of thermoelastic martensitic phase transformations. The thermal analyzes were performed using dilatometry and differential scanning calorimetry to determine the temperatures that occurred transformations during the cooling and heating, as well as to evaluate the influence of the thermal treatments performed by dilatometry. The thermomechanical behavior was also evaluated by the internal friction that measured behavior damping considering the structural and microstructural changes. The calorimetry measurements indicated suppression of the R phase through decomposition of precipitates of Ti3N4after the thermal treatments, that were corroborated by dilatometry and microhardness. This phase was also studied by the technique of internal friction, which showed that the mechanical damping coefficient increased as a function of temperature, due to the movement of the defects induced by tension. |
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Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analysesTi-Nishape-memory effectinternal frictiondilatometrycalorimetryABSTRACT The use of Ti-Ni memory alloys covers several fields of application such as medicine, dentistry, actuators, sensors among others. Because of the thermomechanical behavior of these materials, they are an object of continuous studies and their properties are related to the occurrence of thermoelastic martensitic phase transformations. The thermal analyzes were performed using dilatometry and differential scanning calorimetry to determine the temperatures that occurred transformations during the cooling and heating, as well as to evaluate the influence of the thermal treatments performed by dilatometry. The thermomechanical behavior was also evaluated by the internal friction that measured behavior damping considering the structural and microstructural changes. The calorimetry measurements indicated suppression of the R phase through decomposition of precipitates of Ti3N4after the thermal treatments, that were corroborated by dilatometry and microhardness. This phase was also studied by the technique of internal friction, which showed that the mechanical damping coefficient increased as a function of temperature, due to the movement of the defects induced by tension.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000300362Matéria (Rio de Janeiro) v.24 n.3 2019reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620190003.0766info:eu-repo/semantics/openAccessVirgolino,Fillipe Stephany de SouzaSantos,Tiago Felipe de AbreuOliveira,Carlos Augusto NascimentoGonzalez,Cezar HenriqueSousa,Guilherme Gadelha deVilela,José Mário CarneiroAndrade,Margareth Spanglereng2019-09-11T00:00:00Zoai:scielo:S1517-70762019000300362Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2019-09-11T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false |
dc.title.none.fl_str_mv |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
title |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
spellingShingle |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses Virgolino,Fillipe Stephany de Souza Ti-Ni shape-memory effect internal friction dilatometry calorimetry |
title_short |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
title_full |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
title_fullStr |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
title_full_unstemmed |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
title_sort |
Evaluation of two-step transformation in Ni-rich titanium-nickel alloys using thermal and internal friction analyses |
author |
Virgolino,Fillipe Stephany de Souza |
author_facet |
Virgolino,Fillipe Stephany de Souza Santos,Tiago Felipe de Abreu Oliveira,Carlos Augusto Nascimento Gonzalez,Cezar Henrique Sousa,Guilherme Gadelha de Vilela,José Mário Carneiro Andrade,Margareth Spangler |
author_role |
author |
author2 |
Santos,Tiago Felipe de Abreu Oliveira,Carlos Augusto Nascimento Gonzalez,Cezar Henrique Sousa,Guilherme Gadelha de Vilela,José Mário Carneiro Andrade,Margareth Spangler |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Virgolino,Fillipe Stephany de Souza Santos,Tiago Felipe de Abreu Oliveira,Carlos Augusto Nascimento Gonzalez,Cezar Henrique Sousa,Guilherme Gadelha de Vilela,José Mário Carneiro Andrade,Margareth Spangler |
dc.subject.por.fl_str_mv |
Ti-Ni shape-memory effect internal friction dilatometry calorimetry |
topic |
Ti-Ni shape-memory effect internal friction dilatometry calorimetry |
description |
ABSTRACT The use of Ti-Ni memory alloys covers several fields of application such as medicine, dentistry, actuators, sensors among others. Because of the thermomechanical behavior of these materials, they are an object of continuous studies and their properties are related to the occurrence of thermoelastic martensitic phase transformations. The thermal analyzes were performed using dilatometry and differential scanning calorimetry to determine the temperatures that occurred transformations during the cooling and heating, as well as to evaluate the influence of the thermal treatments performed by dilatometry. The thermomechanical behavior was also evaluated by the internal friction that measured behavior damping considering the structural and microstructural changes. The calorimetry measurements indicated suppression of the R phase through decomposition of precipitates of Ti3N4after the thermal treatments, that were corroborated by dilatometry and microhardness. This phase was also studied by the technique of internal friction, which showed that the mechanical damping coefficient increased as a function of temperature, due to the movement of the defects induced by tension. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000300362 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000300362 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1517-707620190003.0766 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro em cooperação com a Associação Brasileira do Hidrogênio, ABH2 |
publisher.none.fl_str_mv |
Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro em cooperação com a Associação Brasileira do Hidrogênio, ABH2 |
dc.source.none.fl_str_mv |
Matéria (Rio de Janeiro) v.24 n.3 2019 reponame:Matéria (Rio de Janeiro. Online) instname:Matéria (Rio de Janeiro. Online) instacron:RLAM |
instname_str |
Matéria (Rio de Janeiro. Online) |
instacron_str |
RLAM |
institution |
RLAM |
reponame_str |
Matéria (Rio de Janeiro. Online) |
collection |
Matéria (Rio de Janeiro. Online) |
repository.name.fl_str_mv |
Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online) |
repository.mail.fl_str_mv |
||materia@labh2.coppe.ufrj.br |
_version_ |
1752126692411834368 |