Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
권호 표지
DOI QR코드

DOI QR Code

Effect of Oxygen Content on Shape Memory Characteristics of Ti-18Nb-6Zr-XO (X = 0~1.5at%) Alloys

생체용 Ti-18Nb-6Zr-XO (X = 0~1.5at%) 합금의 형상기억특성에 미치는 산소 농도의 영향

  • Park, Young-Chul (Materials Science and Engineering, Dong-A University) ;
  • Ock, Ji-Myeon (Materials Science and Engineering, Dong-A University) ;
  • Oh, Jeong-Hwa (Materials Science and Engineering, Dong-A University) ;
  • Park, Su-Ho (Materials Science and Engineering, Dong-A University) ;
  • Lee, Jun-Hee (Materials Science and Engineering, Dong-A University) ;
  • Kim, Jae-Il (Materials Science and Engineering, Dong-A University)
  • 박영철 (동아대학교 신소재공학과) ;
  • 옥지면 (동아대학교 신소재공학과) ;
  • 오정화 (동아대학교 신소재공학과) ;
  • 박수호 (동아대학교 신소재공학과) ;
  • 이준희 (동아대학교 신소재공학과) ;
  • 김재일 (동아대학교 신소재공학과)
  • Received : 2011.10.18
  • Accepted : 2011.11.04
  • Published : 2011.11.27
Download PDF
⟨ Previous Next ⟩

Abstract

The effect of oxygen on the shape memory characteristics in Ti-18Nb-6Zr-XO (X = 0-1.5 at%) biomedical alloys was investigated by tensile tests. The alloys were fabricated by an arc melting method at Ar atmosphere. The ingots were cold-rolled to 0.45 mm with a reduction up to 95% in thickness. After severe cold-rolling, the plate was solution-treated at 1173 K for 1.8 ks. The fracture stress of the solution-treated specimens increased from 450 Mpa to 880 MPa with an increasing oxygen content up to 1.5%. The fracture stress increased by 287MPa with 1 at% increase of oxygen content. The critical stress for slip increased from 430 MPa to 695 MPa with an increasing oxygen content up to 1.5 at%. The maximum recovery strain of 4.1% was obtained in the Ti-18Nb-6Zr-0.5O (at%) alloy. The martensitic transformation temperature decreased by 140 K with a 1.0 at% increase in O content, which is lower than that of Ti-22Nb-(0-2.0)O (at%) by 20 K. This may have been caused by the effect of the addition of Zr. This study confirmed that addition of oxygen to the Ti-Nb-Zr alloy increases the critical stress for slip due to solid solution hardening without being detrimental to the maximum recovery strain.

Keywords

References

  1. Y. Oshida and S. Miyazaki, Corrosion Eng., 40, 1009 (1991).
  2. S. Miyazaki, Engineering Aspects of Shape Memory Alloys, p. 394-413, ed. T. W. Duerig, K.N. Melton, D. Stockel and C. M. Wayman, Butterworth-Heinenmann, Guildford, UK, (1990).
  3. S. Miyazaki and K. Otsuka, ISIJ International, 29, 353 (1989). https://doi.org/10.2355/isijinternational.29.353
  4. S. Shabalovskaya, in Proceedings of the First International Conference Shape Memory and Superelastic Technologies (Pacific Grove, CA, March 1994) p. 209.
  5. H. Y. Kim, S. Hashimoto, J. I. Kim, H. Hosoda and S. Miyazaki, Mater. Trans., 45, 2443 (2004). https://doi.org/10.2320/matertrans.45.2443
  6. W. F. Ho, C. P. Ju and J. H. C. Lin, Biomaterials, 20, 2115 (1999). https://doi.org/10.1016/S0142-9612(99)00114-3
  7. T. Grosdidier and M. J. Philippe, Mater. Sci. Eng., 291, 218 (2000). https://doi.org/10.1016/S0921-5093(00)00921-7
  8. H. Hosoda, N. Hosoda and S. Miyazaki, Trans. MRS-J, 26, 243 (2001).
  9. H. Y. Kim, Y. Ohmatsu, J. I. Kim, H. Hosoda and S. Miyazaki, Mater. Trans., 45, 1090 (2004). https://doi.org/10.2320/matertrans.45.1090
  10. T. Maeshima and M. Nishida, Mater. Trans., 45, 1096 (2004). https://doi.org/10.2320/matertrans.45.1096
  11. T. Maeshima and M. Nishida, Mater. Trans., 45, 1101 (2004). https://doi.org/10.2320/matertrans.45.1101
  12. J. I. Kim, H. Y. Kim, T. Inamura, H. Hosoda and S. Miyazaki, Mater. Sci. Eng., 403, 334 (2005). https://doi.org/10.1016/j.msea.2005.05.050
  13. D. J. Lee, K. M. Lee, K. K. Lee, C. N. Ryu, R. W. Oh, S. H. Kim and T. L. Yoon, Kor. J. Mater. Res., 13(11), 761 (2003) (in Korean). https://doi.org/10.3740/MRSK.2003.13.11.761
  14. S. H. Park, K. D. Woo, S. H. Kim, S. M. Lee, J. Y. Kim, H. R. Ko and S. M. Kim, Kor. J. Mater. Res., 21(7), 384 (2011) (in Korean). https://doi.org/10.3740/MRSK.2011.21.7.384
  15. J. I. Kim, H. Y. Kim, T. Inamura, H. Hosoda and S. Miyazaki, Mater. Trans., 47(3), 505 (2006). https://doi.org/10.2320/matertrans.47.505
  16. J. I. Kim, H. Y. Kim, H. Hosoda and S. Miyazaki, Mater. Trans., 46(4), 852 (2005). https://doi.org/10.2320/matertrans.46.852
  17. H. Y. Kim, T. Sasaki, K. Okutsu, J. I. Kim, T. Inamura, H. Hosoda and S. Miyazaki, Acta Mater., 54, 423 (2006). https://doi.org/10.1016/j.actamat.2005.09.014
  18. H. Y. Kim, J. I. Kim, T. Inamura, H. Hosoda and S. Miyazaki, Mater. Sci. Eng., 438-440, 839 (2006). https://doi.org/10.1016/j.msea.2006.02.136
  19. H. Y. Kim, Y. Ikehara, J. I. Kim, H. Hosoda and S. Miyazaki, Acta Mater., 54, 2419 (2006). https://doi.org/10.1016/j.actamat.2006.01.019
  20. H. Y. Kim, S. Hashimoto, J. I. Kim, T. Inamura, H. Hosoda and S. Miyazaki, Mater. Sci. Eng., 417, 120 (2006). https://doi.org/10.1016/j.msea.2005.10.065
  21. Y. W. Chai, H. Y. Kim, H. Hosoda and S. Miyazaki, Acta Meter., 56, 3088 (2008). https://doi.org/10.1016/j.actamat.2008.02.045
  22. Y. W. Chai, H. Y. Kim, H. Hosoda and S. Miyazaki, Acta Meter., 57, 4054 (2009). https://doi.org/10.1016/j.actamat.2009.04.051
  23. M. Tahara, H. Y. Kim, H. Hosoda and S. Miyazaki, Acta Meter., 57, 2461 (2009). https://doi.org/10.1016/j.actamat.2009.01.037
  24. P. J. S. Buenconsejo, H. Y. Kim, H. Hosoda and S. Miyazaki, Acta Meter., 57, 1068 (2009). https://doi.org/10.1016/j.actamat.2008.10.041
  25. P. J. S. Buenconsejo, H. Y. Kim and S. Miyazaki, Acta Meter., 57, 2509 (2009). https://doi.org/10.1016/j.actamat.2009.02.007
  26. T. Inamura, Y. Yamamoto, H. Hosoda, H. Y. Kim and S. Miyazaki, Acta Meter., 58, 2535 (2010). https://doi.org/10.1016/j.actamat.2009.12.040
  27. Y. Al-Zain, H. Y. Kim, H. Hosoda, T. H. Nam and S. Miyazaki, Acta Meter., 58, 4212 (2010). https://doi.org/10.1016/j.actamat.2010.04.013
  28. P. J. S. Buenconsejo, H. Y. Kim and S. Miyazaki, Scripta Mater., 64, 1114 (2011). https://doi.org/10.1016/j.scriptamat.2011.03.004
  29. Y. Al-Zain, H. Y. Kim, T. Koyano, H. Hosoda, T. H. Nam and S. Miyazaki, Acta Mater., 59, 1464 (2011). https://doi.org/10.1016/j.actamat.2010.11.008
  30. M. Tahara, H. Y. Kim, H. Hosoda, T. H. Nam and S. Miyazaki, Mater. Sci. Eng. A, 527, 6844 (2010). https://doi.org/10.1016/j.msea.2010.07.052
  31. C. Baker, Mat. Sci., 5, 92 (1971).