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https://hdl.handle.net/1822/7786
Título: | Tribocorrosion behaviour of plasma nitrided and plasma nitrided+oxidised Ti6Al4V alloy |
Autor(es): | Fernandes, Ana C. Vaz, F. Ariza, E. Rocha, L. A. Ribeiro, A. R. Vieira, A. C. Rivière, J. P. Pichon, L. |
Palavras-chave: | Titanium Plasma treatment X-ray diffraction Pin-on-disc |
Data: | 2006 |
Editora: | Elsevier 1 |
Revista: | Surface and Coatings Technology |
Citação: | "Surface & Coatings Technology". ISSN 0257-8972. 200 (2006) 6218–6224. |
Resumo(s): | 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/7786 |
DOI: | 10.1016/j.surfcoat.2005.11.069 |
ISSN: | 0257-8972 |
Versão da editora: | http://www.sciencedirect.com/ |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CIICS - Artigos em revistas de circulação internacional com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Tribocorrosion behaviour of plasma nitrided and plasma Nitrided+oxidised Ti6Al4V alloy.pdf | Main document | 303,6 kB | Adobe PDF | Ver/Abrir |