Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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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

  • Lee, Doh-Jae (Dept. of Metallurgical Engineering, Chonnam National University) ;
  • Kim, Dae-Hwan (Dept. of Metallurgical Engineering, Chonnam National University) ;
  • Park, Hyo-Byeong (Dept. of Dental Laboratory Technology, Kwangju-Health College) ;
  • Lee, Kyung-Ku (Dept. of Advanced Material Engineering, Hanlyo University)
  • 이도재 (전남대학교 공과대학 금속공학과) ;
  • 김대환 (전남대학교 공과대학 금속공학과) ;
  • 박효병 (광주보건대학 치기공과) ;
  • 이경구 (한려대학교 신소재공학과)
  • Published : 2000.06.20
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Abstract

The mechanical properties and corrosion resistance of Ti alloys for medical implants have been investigated. Ti, Ti-15Sn-4Nb and Ti-15Sn-4Nb-2Zr alloys were melted in arc furnace and the corrosion resistance of Ti alloys was evaluated by anodic polarization test. The microstructure and mechanical properties of Ti alloys were analysed by optical microscope, hardness and tensile tester. The tensile strength of the pure-Ti improved by addition of Sn and Nb and Ti-15Sn-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-15Sn-4Nb alloy. The passive films on the Ti-15Sn-4Nb alloy in air atmosphere consisted of $TiO_2$, SnO and NbO as demonstrated by X-ray photoelectron spectroscopy(XPS)

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