@Article{UedaSiOtReYaLeBe:2003:ImTrPr,
               author = "Ueda, M{\'a}rio and Silva, M. M. and Otani, C. and Reuther, H. 
                         and Yatsuzuka, M. and Lepienski, C. M. and Berni, Luiz 
                         {\^A}ngelo",
          affiliation = "nst Nacl Pesquisas Espaciais, Lab Associado Plasma, BR-12201 Sao 
                         Jose Dos Campos, SP, Brazil and Inst Tecnol Aeronaut, Dept Engn 
                         Mecan, Sao Jose Dos Campos, Brazil and Inst Tecnol Aeronaut, Dept 
                         Fis, Sao Jose Dos Campos, Brazil and Rossendorf Inc, Inst Ion Beam 
                         Phys \& Mat Res, D-01314 Dresden, Germany and Himeji Inst 
                         Technol, Himeji, Hyogo 67122, Japan and Univ Fed Parana, Dept Fis, 
                         BR-80060000 Curitiba, Parana, Brazil",
                title = "Improvement of tribological properties of Ti6Al4V by nitrogen 
                         plasma immersion ion implantation",
              journal = "Surface and Coatings Technology",
                 year = "2003",
               volume = "69",
                pages = "408--410",
                month = "June",
             keywords = "tecnologia de plasma, plasma tecnology, plasma immersion ion 
                         implantation, titanium alloy, nitrogen implantation, 
                         three-dimensional ion implantation, nanohardness, industrial 
                         components, surface modification.",
             abstract = "Plasma immersion nitrogen implantation of Ti6Al4V (TAV) alloy was 
                         carried out to improve the surface tribological properties of test 
                         samples for artificial heart valves. Our results show that a good 
                         implantation with nitrogen peak concentration of 40% was achieved 
                         but with only approximately 50 nm implanted layer, after 60 min of 
                         treatment. Longer treatments showed no improvement in the retained 
                         dose, probably due to sputtering effects. However, both 
                         significant reduction of friction coefficient and increase in 
                         hardness was seen even for such a shallow implantation. 
                         Furthermore, the hardness improvement extended to regions much 
                         deeper than the implanted layer. Improvements of the wear 
                         resistance of such nitrogen implanted Ti alloy is expected, 
                         increasing considerably the useful lifetime of components made of 
                         TAV which is finding widespread use in biomedical and aerospace 
                         applications.",
           copyholder = "SID/SCD",
                 issn = "0257-8972",
             language = "en",
           targetfile = "62.pdf",
        urlaccessdate = "08 maio 2024"
}