Corrosion and tribocorrosion behavior of Ti−TiB−TiNx in-situ hybrid composite synthesized by reactive hot pressing
| Autor: | A. M. P. Pinto, Fatih Toptan, J. I. Silva, A.C. Alves |
|---|---|
| Přispěvatelé: | Universidade do Minho |
| Rok vydání: | 2017 |
| Předmět: |
Titanium
Science & Technology Materials science Tribocorrosion Metallurgy Composite number Biomedical Engineering Foundation (engineering) chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Hot pressing Corrosion Biomaterials 020303 mechanical engineering & transports 0203 mechanical engineering chemistry Mechanics of Materials In-situ composites 0210 nano-technology |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1751-6161 |
| DOI: | 10.1016/j.jmbbm.2017.05.041 |
| Popis: | Ti and its alloys are attractive materials for variety of fields, including biomedical implants, however, the wear behavior is yet to be improved. In the present work, Ti-TiB-TiNx in-situ metal matrix composites were synthesized by reactive hot pressing using a Ti-BN powder blend. Corrosion behavior was investigated in 9 g/L NaCl solution at 37 degrees C by performing potentiodynamic polarization and electrochemical impedance spectroscopy. Tribocorrosion behavior was investigated using reciprocating tribometer, against an alumina ball, under 1 and 10 N normal load, 1 and 2 Hz frequency, in 9 g/L NaCl solution at 37 degrees C. Results suggested that TiB and TiNx in situ phases did not deteriorate the corrosion behavior of Ti but significantly improved the tribocorrosion behavior under 1 N. This study was supported by The Calouste Gulbenkian Foundation through "Programa de Mobilidade Academica para Professores" and FCT with the reference project UID/EEA/04436/2013, by FEDER funds through the COMPETE 2020 - Programa Operacional Competitividade e Internacionalizacao (POCI) with the reference project POCI-01-0145-FEDER-006941. F. Toptan is grateful for financial support through the project NORTE 01-0145_FEDER-000018. info:eu-repo/semantics/publishedVersion |
| Databáze: | OpenAIRE |
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