pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (20권3호 208-215)
A Study on Corrosion Resistance and Mechanical Properties of Ti-15Sn System Alloys for Medical Implants
생체용 Ti-15Sn계 합금의 내식성 및 기계적 성질에 관한 연구
Doh-Jae Lee, Dae-Hwan Kim, Hyo-Byeong Park*, Kyung-Ku Lee**
Chonnam National University, *Kwangiu-Health College, **Hanlyo University
The mechanical properties and corrosion resistance of Ti alloys for medical implants have been investigated. Ti, Ti-l5Sn-4Nb and Ti-l5Sn-4Nb-2Zr alloys were melted in arc fiirnace and the corrosion resistance of Ti alloys was evaluated by anodic polar- ization test. The microstructure and mechanical properties of Ti alloys were analysed by optical microscope, hardness and ten- sile tester. The tensile strength of the pure-Ti improved by addition of Sn and Nb and Ti-l5Sn-4Nb alloy showed better Rockwell hardness compared with pure Ti. However, there was no significant difference in corrosion resistance between thoseTi-alloys made of Pure-Ti and Ti-l5Sn-4Nb alloy. The passive films on the Ti-l5Sn-4Nb alloy in air atmosphere consisted of TiO2, SnO and NbO as demonstrated by X-ray photoelectron spectroscopy(XPS)
PDF