Evaluation of TiN PVD coating on creep resistance of Ti-6Al-4V

• Grant number: 13/00885-2
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2013
• End date: March 31, 2014
• Field of knowledge: Engineering - Materials and Metallurgical Engineering
• Principal Investigator: Miguel Justino Ribeiro Barboza
• Grantee: Carla de Aguiar
• Host Institution: Escola de Engenharia de Lorena (EEL). Universidade de São Paulo (USP). Lorena , SP, Brazil

Abstract

In the last years, an intense research effort has been made to develop new structural alloys and to optimize the alloys commercially available, which could withstand the demanding operational conditions at high temperatures. A substantial part of these research activities has been dedicated to titanium alloys. However, the high reactivity with oxygen and poor resistance to wear contribute to reduction in creep life. 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 TiN PVD coating on 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 and scanning electron microscopy and microhardness measurement. (AU)

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, DEC 25 2015. (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, JUL 18 2016. (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, NOV 2014. (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, MAR-APR 2017. (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., 2015-12-25. (13/00885-2, 11/00511-0, 13/00886-9)