Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys
Autor(a) principal: | |
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Data de Publicação: | 1996 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/225083 |
Resumo: | Internal friction and frequency measurements as a function of temperature have been carried out in Nb and Nb-Zr policrystalline samples, using a torsion pendulum in the temperature range between 300K and 700K, the heating rate was 1K/min and the pressure was kept better than 5×10-3 mbar. Metals with bcc lattice containing solute atoms dissolved interstitially often show anelastic behaviour due to a process know as stress-induced ordering, responsible for the appearance of Snoek peaks. In the Nb sample it has been identified two constituent peaks corresponding to the interstitial-matrix interactions (Nb-O and Nb-N), but for the Nb-Zr samples with interstitial solute concentrations very close to those measured for the unalloyed Nb, it was not observed any mechanical relaxation peaks due to the presence of oxygen and nitrogen in solid solution. |
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Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloysInternal friction and frequency measurements as a function of temperature have been carried out in Nb and Nb-Zr policrystalline samples, using a torsion pendulum in the temperature range between 300K and 700K, the heating rate was 1K/min and the pressure was kept better than 5×10-3 mbar. Metals with bcc lattice containing solute atoms dissolved interstitially often show anelastic behaviour due to a process know as stress-induced ordering, responsible for the appearance of Snoek peaks. In the Nb sample it has been identified two constituent peaks corresponding to the interstitial-matrix interactions (Nb-O and Nb-N), but for the Nb-Zr samples with interstitial solute concentrations very close to those measured for the unalloyed Nb, it was not observed any mechanical relaxation peaks due to the presence of oxygen and nitrogen in solid solution.Departamento de Física, UFSCar, C.P. 676, CEP 13.565-905-S. Carlos SPDepto. de Engenharia de Materiais, UFSCar, C.P. 676, CEP 13.565-905-S. Carlos SPDepartamento de Física, UNESP, C.P. 473, CEP 17.043-560 Bauru SPDepartamento de Física, UNESP, C.P. 473, CEP 17.043-560 Bauru SPUniversidade Federal de São Carlos (UFSCar)Universidade Estadual Paulista (UNESP)Florêncio, O.Aparecido De Freitas, W.Botta F., W. J.Grandini, C. R. [UNESP]Jordão, J. A.R.2022-04-28T20:38:59Z2022-04-28T20:38:59Z1996-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal De Physique. IV : JP, v. 6, n. 8, 1996.1155-4339http://hdl.handle.net/11449/2250832-s2.0-4143107939Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal De Physique. IV : JPinfo:eu-repo/semantics/openAccess2024-04-25T17:40:00Zoai:repositorio.unesp.br:11449/225083Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:17:30.384699Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
title |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
spellingShingle |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys Florêncio, O. |
title_short |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
title_full |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
title_fullStr |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
title_full_unstemmed |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
title_sort |
Influence of interstitial elements on internal friction measurements in Nb and Nb-Zr alloys |
author |
Florêncio, O. |
author_facet |
Florêncio, O. Aparecido De Freitas, W. Botta F., W. J. Grandini, C. R. [UNESP] Jordão, J. A.R. |
author_role |
author |
author2 |
Aparecido De Freitas, W. Botta F., W. J. Grandini, C. R. [UNESP] Jordão, J. A.R. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Federal de São Carlos (UFSCar) Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Florêncio, O. Aparecido De Freitas, W. Botta F., W. J. Grandini, C. R. [UNESP] Jordão, J. A.R. |
description |
Internal friction and frequency measurements as a function of temperature have been carried out in Nb and Nb-Zr policrystalline samples, using a torsion pendulum in the temperature range between 300K and 700K, the heating rate was 1K/min and the pressure was kept better than 5×10-3 mbar. Metals with bcc lattice containing solute atoms dissolved interstitially often show anelastic behaviour due to a process know as stress-induced ordering, responsible for the appearance of Snoek peaks. In the Nb sample it has been identified two constituent peaks corresponding to the interstitial-matrix interactions (Nb-O and Nb-N), but for the Nb-Zr samples with interstitial solute concentrations very close to those measured for the unalloyed Nb, it was not observed any mechanical relaxation peaks due to the presence of oxygen and nitrogen in solid solution. |
publishDate |
1996 |
dc.date.none.fl_str_mv |
1996-01-01 2022-04-28T20:38:59Z 2022-04-28T20:38:59Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Journal De Physique. IV : JP, v. 6, n. 8, 1996. 1155-4339 http://hdl.handle.net/11449/225083 2-s2.0-4143107939 |
identifier_str_mv |
Journal De Physique. IV : JP, v. 6, n. 8, 1996. 1155-4339 2-s2.0-4143107939 |
url |
http://hdl.handle.net/11449/225083 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal De Physique. IV : JP |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129048256184320 |