화학공학소재연구정보센터
학회 한국재료학회
학술대회 2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터)
권호 20권 2호
발표분야 D. 바이오 재료(Biomaterials)
제목 Surface characterization and corrosion behavior of thermally oxidized Ti-15Mo alloy for dental implant applications
초록 Surface modification of titanium and its alloys are increasingly studied to improve mechanical properties and corrosion resistance on dental implants involving Ti-Mo alloys. The present study was to evaluate the surface characteristics and corrosion behavior of thermally oxidized (TO) Ti-15Mo alloy. TO of Ti-15Mo alloy at 500, 650 and 800oC for 8, 16, 24 and 48h. The surface characteristics of Ti-15Mo alloy with and without thermal oxidation treatment were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), surface roughness test, and potentiodynamic polarization test in Ringer’s solution. The surface morphology of thermally oxidized Ti-15Mo alloy reveals the formation of a thin oxide layer at 500oC that changes into a small grain structure at 650oC and complete coverage of larger grain structure at 800oC. The phase constituents of the oxide film formed during thermal oxidation exhibit a strong dependence on the treatment time. TO of Ti-15Mo alloy offers excellent corrosion resistance in Ringer’s solution when compared to pure Ti and untreated Ti alloy. TO of Ti-15Mo alloy can be used as a suitable alternative material for dental implant application. This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government(MEST) (No. 2011-0028709, 2014R1A4A1005309). This work Grants No. R0002274 was supported by Regional Strategic Industry project funded by Ministry of Trade, Industry and Energy in 2013.

 
저자 Nithideth Somsanith, Byeon Seon Mi, Phone Lavanh Manivong, Thuy Duong Thi Nguyen, Tae Sung Bae, Min Ho Lee
소속 전북대
키워드 Thermal oxidation; Corrosion behavior; Ti-Mo alloys.
E-Mail