@InProceedings{SilvaReUeFrOlMoBa:2009:EvPlIm,
author = "Silva, M. M. and Reis, D. A. P. and Ueda, M{\'a}rio and Freitas,
F. E. and Oliveira, V. S. and Moura Neto, C. and Barboza, M. J.
R.",
affiliation = "{Instituto Tecnol{\'o}gico de Aeron{\'a}utica} 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 {Instituto Tecnol{\'o}gico de
Aeron{\'a}utica} and {Instituto Tecnol{\'o}gico de
Aeron{\'a}utica} and {Escola de Engenharia de Lorena – EEL-USP}",
title = "Evaluation of Plasma Immersion Ion Implantation in the Creep
Resistance of Ti-6Al- 4V Alloy",
year = "2009",
organization = "International Workshop on Plasma-Based Ion Implantation and
Deposition, 10. (PPI\&D).",
abstract = "The search for alloys with improved high-temperature specific
strength and creep-resistance properties for aerospace
applications has led in the last decades to sustained research
activities to develop new alloys and/or improve existing ones.
Titanium and its alloys are excellent for applications in
structural components submitted to high temperatures owing to
their high strength to weight ratio, good corrosion resistance and
metallurgical stability. Its high creep resistance is of great
importance in enhancing engine performance. However, the affinity
by oxygen is one of main factors that limit its application as
structural material at high temperatures. Materials with adequate
behavior at high temperatures and aggressive environmental became
a scientific requirement, technological and economically nowadays.
The objective of this work is the mechanical and microstructural
characterization of the Ti-6Al-4V alloy after treatment by
nitrogen Plasma Immersion Ion Implantation (PIII) process. The aim
of this process is the improvement of superficial mechanical
properties of the Ti-6Al-4V alloy. The selected alloy after ionic
implantation process by plasma immersion was submitted to creep
tests in 600 ºC, in constant load mode at 250 and 319 MPa. The
techniques used in this work were optical microscopy and scanning
electronic microscopy. The fractograph analysis of the samples
tested in creep shows narrowing phenomena and microcavities. The
creep results show the significant increase of material
resistance, it can be used as protection of oxidation in high
temperatures applications.",
conference-location = "S{\~a}o Jos{\'e} dos Campos, SP",
conference-year = "7-11 Sept.",
urlaccessdate = "04 maio 2024"
}