@Article{SilvaUeSiCo:2006:EfHiPl,
               author = "Silva, Leide Lili Gon{\c{c}}alves and alves and Ueda, M{\'a} and 
                         rio and Silva, M. M. and Cordaro, E. N.",
          affiliation = "Instituto Nacional de Pesquisas Espaciais, Laborat{\'o} and {rio 
                         Associado de Plasma (INPE.LAP)} and Instituto Nacional de 
                         Pesquisas Espaciais, Laborat{\'o} and {rio Associado de Plasma 
                         (INPE.LAP)}",
                title = "Effects of the high-temperature plasma immersion ion-implantation 
                         treatment on corrosion behavior of Ti-6Al-4V",
              journal = "IEEE Transactions on Plasma Science",
                 year = "2006",
               volume = "34",
               number = "4 part 1",
                pages = "1141--1147",
                month = "Aug.",
             keywords = "Corrosion, hardness measurment, ion implantation, titanium 
                         alloys.",
             abstract = "Nitrogen implantation into Ti alloys at higher temperatures 
                         improves their mechanical and corrosion resistance properties by 
                         forming a thicker nitride layer. In this paper, two different sets 
                         of Ti-6Al-4V samples were plasma immersion ion implantation 
                         (PIII)-treated using nitrogen plasma, varying the treatment time 
                         from 30 to 150 min (800¨¬C) and the process temperature from 
                         400¨¬C to 800¨¬C (t = 60 min). Nanoindentation measurements of the 
                         PIII-treated samples at 800¨¬C during 150 min showed the highest 
                         hardness value, 24 GPa, which is about four times bigger than 
                         untreated sample hardness. The N penetration at these conditions 
                         reached approximately 150 nm as analyzed by Auger spectroscopy. On 
                         the other hand, the lowest passive current density (3 ¡¿ 10-7 A ¡¤ 
                         cm-2) was obtained for a PIII-treated sample during 30 min at 
                         higher temperature (800¨¬C). The corrosion resistance of this 
                         sample is almost the same as for the untreated specimen. Corrosion 
                         behavior evidenced that in strong oxidizing media, all 
                         PIII-treated samples are more corrosion resistant than the 
                         untreated one. PIII processing at higher temperatures promotes 
                         smoothing of the sample surface as observed by scanning electron 
                         microscopy (SEM). Grazing incidence X-ray diffraction analyses of 
                         the untreated samples identified the two typical Ti phases, Ti 
                         ¥{\'a} and Ti ¥{\^a}. After the implantation, Ti2N and TiO2 
                         phases were also detected.",
           copyholder = "SID/SCD",
                 issn = "0093-3813",
             language = "en",
           targetfile = "Effects of the high temperature plasma.pdf",
        urlaccessdate = "15 jun. 2024"
}