Mechanical and Biological Biocompatibilityof Novel β-Type Ti-Mn Alloys for Biomedical Applications

Abstract:

Mechanical biocompatibility, including tensile properties and Young’s modulus, of -type Ti-Mn alloys,namely, Ti-10Mn and Ti-14Mn, fabricated by the metal injection molding method were investigated. Thebone formability (biological biocompatibility) of a Ti-Mn alloy, namely, Ti-12Mn, fabricated by thearc-melting method was evaluated by means of an animal test. The tensile strength of sintered Ti-10Mn andTi-14Mn achieve a maximum value of 860 and 886 MPa, respectively. The Ti-14Mn specimen sintered at1273 K shows the lowest Young’s modulus (76 GPa) among all sintered Ti-10Mn and Ti-14Mn specimens.The tensile strength of Ti-Mn alloys is almost equal to that of Ti64 ELI; further, their Young’s modulus islower than that of Ti-6Al-4V ELI. The relative bone contact ratio of Ti-12Mn increases from 11% to 29%with increasing implantation time from 12 weeks to 52 weeks. Moreover, the relative bone contact ratio ofTi-12Mn and CP-Ti is almost constant for all implantation times.

• Periodical: Materials Science Forum (Volumes 783-786)
• Pages: 1232-1237
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.783-786.1232
• Online since: May 2014
• Authors: Ken Cho*, Mitsuo Niinomi, Masaaki Nakai, Junko Hieda, Pedro Fernandes Santos, Yoshinori Itoh, Tomokazu Hattori, Masahiko Ikeda
• Keywords: Biocompatibility, Cell Biocompatibility, Low-Cost Ti Alloy, Mechanical Property, β-Type Ti Alloys

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