Materials Transactions Online

Materials Transactions, Vol.51 No.01 (2010) pp.136-142
© 2010 The Japan Institute of Light Metals

Mechanical Properties of a β-Type Titanium Alloy Cast Using a Calcia Mold for Biomedical Applications

Harumi Tsutsumi1, Mitsuo Niinomi1, Toshikazu Akahori1, Masaaki Nakai1, Tsutomu Takeuchi2 and Shigeki Katsura3

1Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
2Takeuchi Katan, Ltd., Toyohashi 441-8132, Japan
3Yamahachi Dental Mgf., Co., Gamagori 443-0105, Japan

A calcia mold, which is stable at high temperatures for dental precision casting of β-type titanium alloys such as Ti-29Nb-13Ta-4.6Zr (TNTZ) with high melting point, has been developed. The applicability of the calcia mold to casting TNTZ was evaluated with focusing on the mechanical properties of the casting in this study. The molten TNTZ was cast into the calcia mold of which dimensional accuracy was controlled by adding pure zirconium particles. The tensile and fatigue properties of TNTZ cast into the calcia mold were examined with comparing those of TNTZ cast into the magnesia mold, which is the conventional one for casting titanium alloys.
The tensile properties of TNTZ cast into the calcia and the magnesia molds are not markedly different. The fatigue strength of TNTZ cast into the calcia mold in the low- and high-cycle fatigue life regions is slightly higher than that of TNTZ cast into the magnesia mold. Therefore, the calcia mold is expected to be applicable to the dental precision casting of TNTZ.

(Received 2009/6/19; Accepted 2009/8/26; Published 2009/12/25)

Keywords: β-type titanium alloy, dental precision casting, calcia mold, magnesia mold, tensile properties, fatigue properties

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REFERENCES

  1. K. Ida and I. Miura: Application of Titanium for Denture Field, (1998) pp.11–14.
  2. Y. Okazaki, A. Ito, T. Tateishi and Y. Ito: J. Japan Inst. Metals 57 (1993) 332–337.
  3. T. Hanwa: J. Jpn. Soc. Biomat. 23 (2005) 83–90.
  4. M. Niinomi, T. Hattori, K. Morikawa, T. Kasuga, A. Suzuki, H. Fukui and S. Niwa: Mater. Trans. 43 (2002) 2970–2977.
  5. M. Niinomi: Biomaterials 24 (2003) 2673–2683.
  6. Y. L. Hao, M. Niinomi, D. Kuroda, K. Fukunaga, R. Yang and A. Suzuki: Metall. Mater. Trans. A 34 (2003) 1007.
  7. S. J. Li, M. Niinomi, T. Akahori, T. Kasuga, R. Yang and Y. L. Hao: Biomaterials 25 (2004) 3341–3349.
  8. M. Niinomi, T. Akahori, T. Manabe, T. Takeuchi, S. Katsura, H. Fukui and A. Suzuki: Tetsu-to-Hagane 90 (2004) 154.
  9. H. Tsutsumi, M. Niinomi, T. Akahori, M. Nakai, T. Takeuchi and S. Katsura: Mater. Trans. 50 (2009) 2057–2063.
  10. H. Tsutsumi, M. Niinomi, T. Akahori, M. Nakai, T. Takeuchi and S. Katsura: Mater. Trans. 51 (2010) 128–135.
  11. A. Sato, N. Matsumoto, Y. Yoneda, T. Takahashi and H. Iwanabe: Imono 14 (1990) 244–253.
  12. M. G. Kim, S. K. Kim and Y. J. Kim: Mater. Trans. 43 (2002) 745–750.
  13. Y. Tamaoki and T. Miyazaki: Prosthodont. Res. Pract. 42 (1998) 528–534.
  14. Japanese Industrial Standards, Dental Casting Gold-Silver-Palladium Alloy, T6106, (1985).
  15. T. Akahori, M. Niinomi, H. Fukui and A. Suzuki: Mater. Trans. 45 (2004) 1540–1548.
  16. T. Minamoto, M. Niinomi, T. Akahori, Y. Nakano and H. Fukui: J. J. Dent. Mater. 22 (2003) 210–220.

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