Corrosion and tribocorrosion behavior of Ti-TiB-TiN<sub>x</sub> in-situ hybrid composite synthesized by reactive hot pressing.
basic_science · Level V
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- Record sourced from PubMed, PMID 28609705.
- Also identified by DOI 10.1016/j.jmbbm.2017.05.041.
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Abstract
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-TiN<sub>x</sub> in-situ metal matrix composites were synthesized by reactive hot pressing using a Ti-BN powder blend. Corrosion behavior was investigated in 9g/L NaCl solution at 37°C by performing potentiodynamic polarization and electrochemical impedance spectroscopy. Tribocorrosion behavior was investigated using reciprocating tribometer, against an alumina ball, under 1 and 10N normal load, 1 and 2Hz frequency, in 9g/L NaCl solution at 37°C. Results suggested that TiB and TiN<sub>x</sub> in-situ phases did not deteriorate the corrosion behavior of Ti but significantly improved the tribocorrosion behavior under 1N.
Medical subject headings
- Materials Testing
- Prostheses and Implants
- Titanium