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Study on the creep phenomenon of Ti-6Al-4V submitted to TiAl coating deposited by PVD plasma-assisted technique

Grant number: 13/00886-9
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): May 01, 2013
Effective date (End): April 30, 2014
Field of knowledge:Engineering - Materials and Metallurgical Engineering
Principal Investigator:Miguel Justino Ribeiro Barboza
Grantee:Amira Muci Vazquez
Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil

Abstract

Ti-6Al-4V accounts for 60% of world production and a large portion focuses on making components where creep resistance is crucial for applications in high temperatures. However, the high reactivity and poor resistance to wear contribute to reduction in creep life. There are no studies in the literature on the interaction of the creep phenomenon and TiAlN PVD coating in Ti-6Al-4V. In this context, the objective will be to continue the studies with Ti6Al4V. These studies were initiated in 2001 and had a major breakthrough with a research project supported by FAPESP (proc. 2007/54987-0) during the period from 12/01/07 to 06/30/10. The excellent results obtained by surface treatments on creep resistance of this alloy motivated this new research. In this work, the effect of TiAlN PVD coating on the creep behavior of Ti6Al4V alloy will be evaluated. The studies will be complemented with microstructural analysis and characterization of surface coating using the techniques of X-ray diffraction, optical microscopy, scanning electron microscopy, and microhardness measurements.(AU)

News published in Agência FAPESP Newsletter about the scholarship:
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VEICULO: TITULO (DATA)
VEICULO: TITULO (DATA)

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
OLIVEIRA, V. M. C. A.; VAZQUEZ, A. M.; AGUIAR, C.; ROBIN, A.; BARBOZA, M. J. R.. Protective effect of plasma-assisted PVD deposited coatings on Ti-6Al-4V alloy in NaCl solutions. MATERIALS & DESIGN, v. 88, p. 1334-1341, . (11/00511-0, 13/00885-2, 13/00886-9)
OLIVEIRA, V. M. C. A.; VAZQUEZ, A. M.; AGUIAR, C.; ROBIN, A.; BARBOZA, M. J. R.. Nitride coatings improve Ti-6Al-4V alloy behavior in creep tests. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v. 670, p. 357-368, . (11/00511-0, 13/00885-2, 13/00886-9)
OLIVEIRA, V. M. C. A.; AGUIAR, C.; VAZQUEZ, A. M.; ROBIN, A.; BARBOZA, M. J. R.. Improving corrosion resistance of Ti-6Al-4V alloy through plasma-assisted PVD deposited nitride coatings. Corrosion Science, v. 88, p. 317-327, . (11/00511-0, 13/00885-2, 13/00886-9)
CORTEZ ALVES DE OLIVEIRA, VERONICA MARA; AMIRA MUCI VAZQUEZ, CARLA AGUIARA; MARIE ROBIN, ALAIN LAURENT; RIBEIRO BARBOZA, MIGUEL JUSTINO. Corrosion Behavior Analysis of Plasma-assited PVD Coated Ti-6Al-4V alloy in 2 M NaOH Solution. MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS, v. 20, n. 2, p. 436-444, . (11/00511-0, 13/00885-2, 13/00886-9)
OLIVEIRA, V. M. C. A.; VAZQUEZ, A. M.; AGUIAR, C.; ROBIN, A.; BARBOZA, M. J. R.. Protective effect of plasma-assisted PVD deposited coatings on Ti-6Al-4V alloy in NaCl solutions. MATERIALS & DESIGN, v. 88, p. 8-pg., . (13/00885-2, 11/00511-0, 13/00886-9)

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