Transcription of Biomedical applications of titanium and its alloys
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Biomedical applications of titanium and its alloys
JOM March Materials Science titanium alloys are considered to be the most attractive metallic materialsfor Biomedical applications . Ti-6Al-4 Vhas long been favored for biomedicalapplications. However, for permanentimplant applications the alloy has apossible toxic effect resulting from re-leased vanadium and aluminum. Forthis reason, vanadium- and aluminum-free alloys have been introduced forimplant Materials used for Biomedical appli-cations cover a wide spectrum and mustexhibit specific properties. The mostimportant property of materials usedfor fabricating implants is biocompati-bility, followed by corrosion main metallic biomaterials arestainless steels, cobalt alloy, and titani-um and titanium alloys . Stainless steel was the first metallicbiomaterial used successfully as an im-plant. In 1932, the cobalt-based alloynamed Vitallium was developed formedical applications .
However, biomechanically the cp Ti implants have significantly higher re-moval torque than the alloy implants.2 I. Semenova et al.6 showed that ul-trafine grain cp Ti presents ultimate tensile strength as high as 1,240 MPa while retaining a ductility of 11%. The present work analyzed the pos-sibility of using ultrafine grain titanium in ...
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