| Title |
Research Papers / Surface Treatment : Improvements in Surface Properties of Ti-6Al-4V by Ion Nitriding |
| Authors |
송점식(Jeom Sik Song),김신기(Shin Ki Kim),전윤조(Youn Jo Jeon),김경훈(Kyung Hoon Kim),문무성(Mu Seong Mun) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| 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. |