발간논문

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Vol.40, No.3, 285 ~ 291, 2002
Title
Research Papers / Surface Treatment : Improvements in Surface Properties of Ti-6Al-4V by Ion Nitriding
송점식Jeom Sik Song,김신기Shin Ki Kim,전윤조Youn Jo Jeon,김경훈Kyung Hoon Kim,문무성Mu Seong Mun
Abstract
This paper presents the results from the studies on the surface layers produced by ion nitriding at three different temperatures in order to improve wear resistance, hardness, and to modulate microstructure and chemical composition of surface layers. X-ray diffraction indicated the formation of two phases(TiN, Ti_2N) and the preferred orientations of TiN occured when nitrided at 810℃. Ion nitrided surface had the Vickers hardness of 860 Hv and greatly improved the wear resistance of Ti-6A1-4V. The cytotoxicity was measured with NIH 3T3 fibroblast by SRB method and was compared with that of the FDA approved Ti-6A1-4V. Corrosion resistance and cytotoxicity was similar to untreated Ti-6A1-4V alloy.
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