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期刊论文

TiN and Ti-O/TiN films fabricated by PIII-D for enhancement of corrosion and wear resistance of Ti-6Al-4V

黄楠G.J. Wan N. Huang* Y.X. Leng P. Yang J.Y. Chen J. Wang H. Sun

Surface & Coatings Technology 186(2004)136-140,-0001,():

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摘要/描述

TiN and Ti-O/TiN films have been deposited on Ti-6Al-4V substrate using plasma immersion ion implantation and deposition (PIII&D). It has been proved that TiN and Ti-O/TiN films both enhance the corrosion resistance of substrate materials. Potentiodynamic polarization curves show that both Ti-6Al-4V substrates deposited with these two kinds of films have lower dissolution urrents than that of the uncoated one. Electrochemical impedance spectroscopy (EIS) measurements indicates that TiN films with high corrosion resistance is mainly due to its barrier-type dense film layer, and that Ti-O/TiN film provides high corrosion resistance is mainly owing to its high corrosion potential (Ecorr). Friction coefficient curves obtained from pin-on-disk wear tests, as well as following SEM observation of wear residual trace width and morphology, indicate that TiN and Ti-O/TiN films both present high wear resistance in comparison with uncoated Ti-6Al-4V.

版权说明:以下全部内容由黄楠上传于   2005年03月04日 17时31分05秒,版权归本人所有。

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