Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S0103-64402006000200008 http://hdl.handle.net/11449/69291 |
Resumo: | The purpose of this study was to evaluate the effect of heat treatments on the Vickers hardness of commercially pure titanium and Ti-6Al-4V cast alloys. Six-millimeter-diameter cylindrical specimens were cast in a Rematitan System. Commercially pure titanium and Ti-6Al-4V alloy specimens were randomly assigned to 3 groups (n=10) that received the following heat treatments: control (no heat treatment); treatment 1 (T1): heating at 750°C for 2 h; and treatment 2 (T2): annealing at 955°C for 1 h and aging at 620°C for 2 h. After heat treatments, the specimens were embedded in acrylic resin and their surface was ground and polished and hardness was measured. Vickers hardness means (VHN) and standard deviations were analyzed statistically by Kruskal-Wallis test at 5% significance level. For commercially pure titanium, Vickers hardness means of group T2 (259.90 VHN) was significantly higher than those of the other groups (control - 200.26 VHN and T1 - 202.23 VHN), which presented similar hardness means to each other (p>0.05). For Ti-6Al-4V alloy, statistically significant differences were observed among the three groups: T2 (369.08 VHN), T1 (351.94 VHN) and control (340.51 VHN) (p<0.05). The results demonstrated different hardness of CP Ti and Ti-6Al-4V when different heat treatments were used. For CP Ti, VHN means of T2 group was remarkably higher than those of control and T1 group, which showed similar VHN means to each other. For Ti-6Al-4V alloy, however, VHN means recorded for each group may be presented as follows: T2>T1>control. |
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Repositório Institucional da UNESP |
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Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatmentsHeat treatmentsTitaniumVickers hardnessThe purpose of this study was to evaluate the effect of heat treatments on the Vickers hardness of commercially pure titanium and Ti-6Al-4V cast alloys. Six-millimeter-diameter cylindrical specimens were cast in a Rematitan System. Commercially pure titanium and Ti-6Al-4V alloy specimens were randomly assigned to 3 groups (n=10) that received the following heat treatments: control (no heat treatment); treatment 1 (T1): heating at 750°C for 2 h; and treatment 2 (T2): annealing at 955°C for 1 h and aging at 620°C for 2 h. After heat treatments, the specimens were embedded in acrylic resin and their surface was ground and polished and hardness was measured. Vickers hardness means (VHN) and standard deviations were analyzed statistically by Kruskal-Wallis test at 5% significance level. For commercially pure titanium, Vickers hardness means of group T2 (259.90 VHN) was significantly higher than those of the other groups (control - 200.26 VHN and T1 - 202.23 VHN), which presented similar hardness means to each other (p>0.05). For Ti-6Al-4V alloy, statistically significant differences were observed among the three groups: T2 (369.08 VHN), T1 (351.94 VHN) and control (340.51 VHN) (p<0.05). The results demonstrated different hardness of CP Ti and Ti-6Al-4V when different heat treatments were used. For CP Ti, VHN means of T2 group was remarkably higher than those of control and T1 group, which showed similar VHN means to each other. For Ti-6Al-4V alloy, however, VHN means recorded for each group may be presented as follows: T2>T1>control.Department of Dental Materials and Prosthodontics Faculty of Dentistry of Araraquara São Paulo State University, Araraquara, SPDepartment of Periodontology and Prosthodontics Faculty of Dentistry of Piracicaba State University of Campinas, Piracicaba, SPDepartamento de Materiais Odontológicos e Prótese FOAr/UNESP, Rua Humaitá, 1680, 14801-903 Araraquara, SPDepartment of Dental Materials and Prosthodontics Faculty of Dentistry of Araraquara São Paulo State University, Araraquara, SPDepartamento de Materiais Odontológicos e Prótese FOAr/UNESP, Rua Humaitá, 1680, 14801-903 Araraquara, SPUniversidade Estadual Paulista (Unesp)Universidade Estadual de Campinas (UNICAMP)Da Rocha, Sicknan Soares [UNESP]Adabo, Gelson Luis [UNESP]Henriques, Guilherme Elias PessanhaNóbilo, Mauro Antônio de Arruda2014-05-27T11:22:04Z2014-05-27T11:22:04Z2006-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article126-129application/pdfhttp://dx.doi.org/10.1590/S0103-64402006000200008Brazilian Dental Journal, v. 17, n. 2, p. 126-129, 2006.0103-64401806-4760http://hdl.handle.net/11449/6929110.1590/S0103-64402006000200008S0103-644020060002000082-s2.0-346488127122-s2.0-34648812712.pdf2851339311179809Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Dental Journal0,476info:eu-repo/semantics/openAccess2024-09-27T14:57:34Zoai:repositorio.unesp.br:11449/69291Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-27T14:57:34Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
title |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
spellingShingle |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments Da Rocha, Sicknan Soares [UNESP] Heat treatments Titanium Vickers hardness |
title_short |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
title_full |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
title_fullStr |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
title_full_unstemmed |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
title_sort |
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments |
author |
Da Rocha, Sicknan Soares [UNESP] |
author_facet |
Da Rocha, Sicknan Soares [UNESP] Adabo, Gelson Luis [UNESP] Henriques, Guilherme Elias Pessanha Nóbilo, Mauro Antônio de Arruda |
author_role |
author |
author2 |
Adabo, Gelson Luis [UNESP] Henriques, Guilherme Elias Pessanha Nóbilo, Mauro Antônio de Arruda |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Da Rocha, Sicknan Soares [UNESP] Adabo, Gelson Luis [UNESP] Henriques, Guilherme Elias Pessanha Nóbilo, Mauro Antônio de Arruda |
dc.subject.por.fl_str_mv |
Heat treatments Titanium Vickers hardness |
topic |
Heat treatments Titanium Vickers hardness |
description |
The purpose of this study was to evaluate the effect of heat treatments on the Vickers hardness of commercially pure titanium and Ti-6Al-4V cast alloys. Six-millimeter-diameter cylindrical specimens were cast in a Rematitan System. Commercially pure titanium and Ti-6Al-4V alloy specimens were randomly assigned to 3 groups (n=10) that received the following heat treatments: control (no heat treatment); treatment 1 (T1): heating at 750°C for 2 h; and treatment 2 (T2): annealing at 955°C for 1 h and aging at 620°C for 2 h. After heat treatments, the specimens were embedded in acrylic resin and their surface was ground and polished and hardness was measured. Vickers hardness means (VHN) and standard deviations were analyzed statistically by Kruskal-Wallis test at 5% significance level. For commercially pure titanium, Vickers hardness means of group T2 (259.90 VHN) was significantly higher than those of the other groups (control - 200.26 VHN and T1 - 202.23 VHN), which presented similar hardness means to each other (p>0.05). For Ti-6Al-4V alloy, statistically significant differences were observed among the three groups: T2 (369.08 VHN), T1 (351.94 VHN) and control (340.51 VHN) (p<0.05). The results demonstrated different hardness of CP Ti and Ti-6Al-4V when different heat treatments were used. For CP Ti, VHN means of T2 group was remarkably higher than those of control and T1 group, which showed similar VHN means to each other. For Ti-6Al-4V alloy, however, VHN means recorded for each group may be presented as follows: T2>T1>control. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-12-01 2014-05-27T11:22:04Z 2014-05-27T11:22:04Z |
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 |
http://dx.doi.org/10.1590/S0103-64402006000200008 Brazilian Dental Journal, v. 17, n. 2, p. 126-129, 2006. 0103-6440 1806-4760 http://hdl.handle.net/11449/69291 10.1590/S0103-64402006000200008 S0103-64402006000200008 2-s2.0-34648812712 2-s2.0-34648812712.pdf 2851339311179809 |
url |
http://dx.doi.org/10.1590/S0103-64402006000200008 http://hdl.handle.net/11449/69291 |
identifier_str_mv |
Brazilian Dental Journal, v. 17, n. 2, p. 126-129, 2006. 0103-6440 1806-4760 10.1590/S0103-64402006000200008 S0103-64402006000200008 2-s2.0-34648812712 2-s2.0-34648812712.pdf 2851339311179809 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Dental Journal 0,476 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
126-129 application/pdf |
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 |
repositoriounesp@unesp.br |
_version_ |
1813546526162550785 |