Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/7786 |
Resumo: | This paper reports the influence of low pressure plasma nitriding treatments, some of them followed by plasma assisted oxidation on the mechanical properties and tribocorrosion resistance of a Ti6Al4V alloy. Nitridation was performed for 640 or 720 min at 600 and 700 °C in a r.f. plasma equipment, using a N2–H2 gas mixture at 7.5 Pa. Some of the samples were then post-oxidized at 700 °C for 15 and 60 min, within a O2 plasma of 9.5 Pa. XRD results revealed the occurrence of the Ti2N phase for the nitrided samples. The oxidized surface layers are poorly crystallised with rutile and traces of anatase TiO2 nanocrystallites. Microhardness tests showed a significant improvement of the surface hardness whatever the treatment, with a slight effect of the treatment temperature. The tribocorrosion results clearly showed that plasma treatments have a strong influence on the tribocorrosion behaviour of the material. Both the corrosion and wear performance of the samples are improved by the increase of the processing temperature. |
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Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloyTitaniumPlasma treatmentX-ray diffractionPin-on-discScience & TechnologyThis paper reports the influence of low pressure plasma nitriding treatments, some of them followed by plasma assisted oxidation on the mechanical properties and tribocorrosion resistance of a Ti6Al4V alloy. Nitridation was performed for 640 or 720 min at 600 and 700 °C in a r.f. plasma equipment, using a N2–H2 gas mixture at 7.5 Pa. Some of the samples were then post-oxidized at 700 °C for 15 and 60 min, within a O2 plasma of 9.5 Pa. XRD results revealed the occurrence of the Ti2N phase for the nitrided samples. The oxidized surface layers are poorly crystallised with rutile and traces of anatase TiO2 nanocrystallites. Microhardness tests showed a significant improvement of the surface hardness whatever the treatment, with a slight effect of the treatment temperature. The tribocorrosion results clearly showed that plasma treatments have a strong influence on the tribocorrosion behaviour of the material. Both the corrosion and wear performance of the samples are improved by the increase of the processing temperature.ElsevierUniversidade do MinhoFernandes, Ana C.Vaz, F.Ariza, E.Rocha, L. A.Ribeiro, A. R.Vieira, A. C.Rivière, J. P.Pichon, L.20062006-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/7786eng"Surface & Coatings Technology". ISSN 0257-8972. 200 (2006) 6218–6224.0257-897210.1016/j.surfcoat.2005.11.069http://www.sciencedirect.com/info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:01:36Zoai:repositorium.sdum.uminho.pt:1822/7786Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:51:31.878603Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
title |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
spellingShingle |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy Fernandes, Ana C. Titanium Plasma treatment X-ray diffraction Pin-on-disc Science & Technology |
title_short |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
title_full |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
title_fullStr |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
title_full_unstemmed |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
title_sort |
Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
author |
Fernandes, Ana C. |
author_facet |
Fernandes, Ana C. Vaz, F. Ariza, E. Rocha, L. A. Ribeiro, A. R. Vieira, A. C. Rivière, J. P. Pichon, L. |
author_role |
author |
author2 |
Vaz, F. Ariza, E. Rocha, L. A. Ribeiro, A. R. Vieira, A. C. Rivière, J. P. Pichon, L. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Fernandes, Ana C. Vaz, F. Ariza, E. Rocha, L. A. Ribeiro, A. R. Vieira, A. C. Rivière, J. P. Pichon, L. |
dc.subject.por.fl_str_mv |
Titanium Plasma treatment X-ray diffraction Pin-on-disc Science & Technology |
topic |
Titanium Plasma treatment X-ray diffraction Pin-on-disc Science & Technology |
description |
This paper reports the influence of low pressure plasma nitriding treatments, some of them followed by plasma assisted oxidation on the mechanical properties and tribocorrosion resistance of a Ti6Al4V alloy. Nitridation was performed for 640 or 720 min at 600 and 700 °C in a r.f. plasma equipment, using a N2–H2 gas mixture at 7.5 Pa. Some of the samples were then post-oxidized at 700 °C for 15 and 60 min, within a O2 plasma of 9.5 Pa. XRD results revealed the occurrence of the Ti2N phase for the nitrided samples. The oxidized surface layers are poorly crystallised with rutile and traces of anatase TiO2 nanocrystallites. Microhardness tests showed a significant improvement of the surface hardness whatever the treatment, with a slight effect of the treatment temperature. The tribocorrosion results clearly showed that plasma treatments have a strong influence on the tribocorrosion behaviour of the material. Both the corrosion and wear performance of the samples are improved by the increase of the processing temperature. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006 2006-01-01T00:00:00Z |
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://hdl.handle.net/1822/7786 |
url |
http://hdl.handle.net/1822/7786 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
"Surface & Coatings Technology". ISSN 0257-8972. 200 (2006) 6218–6224. 0257-8972 10.1016/j.surfcoat.2005.11.069 http://www.sciencedirect.com/ |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132287706595328 |