Publicação
Corrosion behaviour of titanium with oxynitride coatings in physiological solution
| Resumo: | In present work the corrosion-electrochemical behavior of titanium alloy Grade 2 with combined coatings - presaturated with nitrogen and oxygen diffusion layer by thermal-chemical treatment and oxynitride coating TiNxOy with nearly equiatomic compositions deposited by magnetron sputtering - in physiological saline (isotonic solution of 0,9% NaCl) was studied. It was found that oxynitride coatings increase the corrosion resistance in 1,2 times as compared to nontreated alloy. When titanium alloy was presaturated with oxygen or nitrogen the combination of oxynitride coating and diffusion layer of thickness 50 μm assists in additional enhancement of corrosion properties in 1,5-3 times. |
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| Autores principais: | Pohrelyuk, Iryna |
| Outros Autores: | Yaskiv, Oleh; Cunha, L. |
| Assunto: | Titanium alloy grade 2 Magnetron sputtering Diffusion saturation Oxynitride coatings Corrosion Physiological saline |
| Ano: | 2012 |
| País: | Portugal |
| Tipo de documento: | comunicação em conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | In present work the corrosion-electrochemical behavior of titanium alloy Grade 2 with combined coatings - presaturated with nitrogen and oxygen diffusion layer by thermal-chemical treatment and oxynitride coating TiNxOy with nearly equiatomic compositions deposited by magnetron sputtering - in physiological saline (isotonic solution of 0,9% NaCl) was studied. It was found that oxynitride coatings increase the corrosion resistance in 1,2 times as compared to nontreated alloy. When titanium alloy was presaturated with oxygen or nitrogen the combination of oxynitride coating and diffusion layer of thickness 50 μm assists in additional enhancement of corrosion properties in 1,5-3 times. |
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