| Full text | |
| Author(s): |
Cortez Alves de Oliveira, Veronica Mara
;
Amira Muci Vazquez, Carla Aguiara
;
Marie Robin, Alain Laurent
;
Ribeiro Barboza, Miguel Justino
Total Authors: 4
|
| Document type: | Journal article |
| Source: | MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 20, n. 2, p. 436-444, MAR-APR 2017. |
| Web of Science Citations: | 1 |
| Abstract | |
The work aims the study of the corrosion behavior of nitride plasma-assisted PVD coated Ti-6Al-4V alloy in 2 M NaOH at 25 and 60°C, using open-circuit potential (OCP) versus time measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The uncoated Ti-6Al-4V alloy showed a passive behavior. The TiN and TiAlN/TiAlCrN coated Ti-6Al-4V alloy also presented a passive behavior and the corrosion potential remained at the same range when compared with the potential of the uncoated alloy. The TiN hard coating showed a superior corrosion resistance, which was evidenced by lower corrosion current densities and higher impedance values. The increase in temperature decreased the corrosion resistance of both uncoated and coated alloy in NaOH. (AU) | |
| FAPESP's process: | 11/00511-0 - Study of the phenomena of creep, corrosion and isothermal oxidation of Ti-6Al-4V subjected to TiN and TiAlN coatings deposited by plasma-assisted PVD technologies. |
| Grantee: | Verônica Mara de Oliveira Velloso |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| FAPESP's process: | 13/00885-2 - Evaluation of TiN PVD coating on creep resistance of Ti-6Al-4V |
| Grantee: | Carla de Aguiar |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 13/00886-9 - Study on the creep phenomenon of Ti-6Al-4V submitted to TiAl coating deposited by PVD plasma-assisted technique |
| Grantee: | Amira Muci Vazquez |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |