Enhancement in corrosion resistance and vibration damping performance in titanium by titanium nitride coating
Autor: | Panupong Jaipan, Nikhil Reddy Mucha, Sergey Yarmolenko, Duy Tran, Kaushik Sarkar, Jonghyun Choi, Onome Scott-Emuakpor, Talisha M. Haywood, Ram K. Gupta, Mannur J. Sundaresan, Dhananjay Kumar |
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Rok vydání: | 2020 |
Předmět: |
Materials science
General Chemical Engineering General Engineering General Physics and Astronomy chemistry.chemical_element engineering.material equipment and supplies Titanium nitride Corrosion Pulsed laser deposition chemistry.chemical_compound chemistry Coating engineering General Earth and Planetary Sciences Surface modification General Materials Science Composite material Thin film Tin General Environmental Science Titanium |
Zdroj: | SN Applied Sciences. 2 |
ISSN: | 2523-3971 2523-3963 |
Popis: | Titanium nitride (TiN) thin films are deposited on titanium (Ti) substrates by pulsed laser deposition and radio frequency magnetron sputtering. The main goal of this research is to improve the corrosion resistance and the vibration damping performance of the Ti substrates by surface modification of the substrates with TiN thin film coatings. Electrochemical results indicate that TiN films bring about a significant improvement in the corrosion resistance of the Ti disks in phosphate buffer saline solution. It is also observed that TiN deposited at room temperature has the best corrosion efficiency in terms of lower corrosion current density and more positive corrosion potential. From the damping measurements, it is observed that the damping ratios of the TiN-coated beams are one to two orders of magnitude greater than those of uncoated ones. Additionally, the damping amplitudes of the TiN coated beams have been observed to return to zero position faster than the uncoated beam. The energy dissipation due to internal friction at the beam-coating interface and inter-lamellae interface within TiN coatings can be the mechanism responsible for reducing vibration amplitudes of TiN-coated beams. |
Databáze: | OpenAIRE |
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