@InProceedings{SilvaKaReUeMoBa:2009:InMiSu,
author = "Silva, M. M. and Kabayama, S. C. B. and Reis, D. A. P. and Ueda,
M{\'a}rio and Moura Neto, C. and Barboza, M. J. R.",
affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Tecnol{\'o}gico de Aeron{\'a}utica} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Tecnol{\'o}gico de
Aeron{\'a}utica} and {Escola de Engenharia de Lorena – EEL-USP}",
title = "Influence of Microstructural and Superficial Treatments in the
Mechanical and Corrosion Resistance of Ti-6Al-4V Alloy",
year = "2009",
organization = "International Workshop on Plasma-Based Ion Implantation and
Deposition, 10. (PPI\&D).",
abstract = "This study aimed to evaluate the influence of microstructural and
superficial treatments in the mechanical and corrosion resistance
Ti-6Al-4V alloy. It was used a Ti-6Al-4V alloy in cylindrical bars
forms, forged condition and annealing at 190 oC for 6 hours and
cooled in air. Three different conditions of heat treatments were
utilized to obtain the following microstructures:
Widmanst{\"a}tten, Martensite e Bimodal. It was also analyzed
samples with superficial treatment of Plasma Immersion Ion
Implantation (PIII) process and ceramic coating by plasma spray.
In the PIII treatment the samples was put in a vacuum reactor
(76x10-3 Pa) and implanted by nitrogen ions in time intervals
between 15 and 120 minutes. Yttria (8 wt.%) stabilized zirconia
(YSZ) with a CoNiCrAlY bond coat was atmospherically plasma
sprayed on Ti-6Al-4V specimens. Constant load creep tests were
conducted with Ti- 6Al-4V alloy at 600°C. The alloy with
Widmanst{\"a}tten structure shows greater resistance to creep and
oxidation with a longer life time in creep. Potentiodynamic
corrosion tests in 0.9 % NaCl aqueous solution, pH 6.0, at room
temperature (~25oC), were carried out on the Ti-6Al-4V alloys
thermally treated and modified surfaces. Comparison between the
corrosion parameters of the treated alloy and modified surface,
showed that the anodic and cathodic current densities so simulate.
This result suggests that the surface modified by PIII is also
efficient in the protection of Ti-6Al-4V alloy against
corrosion.",
conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
conference-year = "7-11 Sept.",
urlaccessdate = "10 maio 2024"
}