Korean Journal of Materials Research (한국재료학회지)

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

DOI QR Code

The Effect of HEMM on Microstructure and Mechanical Properties of Ti-Nb Alloy for Implant Biomedical Materials

생체의학 임플란트재료로서 Ti-Nb계 합금의 조직과 기계적 성질에 미치는 HEMM의 영향

  • Woo, Kee-Do (Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Chonbuk National Universiry) ;
  • Choi, Gab-Song (Department of Mechanical Engineering, Engineering college, Dongmyong University) ;
  • Lee, Hyun-Bum (Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Chonbuk National Universiry) ;
  • Kim, In-Yong (Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Chonbuk National Universiry) ;
  • Zhang, Deliang
  • 우기도 (전북대학교 신소재공학부) ;
  • 최갑송 (동명대학교 기계공학부) ;
  • 이현범 (전북대학교 신소재공학부) ;
  • 김인용 (전북대학교 신소재공학부) ;
  • Published : 2007.11.27
Download PDF
⟨ Previous Next ⟩

Abstract

Al-42wt%Nb powder was prepared by high-energy mechanical milling(HEMM). The particle size, phase transformation and microstructure of the as-milled powder were investigated by particle size distribution (PSD) analyzer, scanning electron microscopy (SEM), X-ray diffractometery (XRD), transmission electron microscopy (TEM)and differential thermal analysis (DTA). The milled powders were heated to a sintering temperature at 1000C with under vaccum with vaccum tube furnace. Microstructural examination of sintered Ti-42wt%Nb alloy using 4h-milled powder showed Ti-rich phases (${\alpha}$-Ti) which are fine and homogeneously distributed in the matrix (Nb-rich phase: ${\beta}$-Ti). The sintered Ti-42wt%Nb alloy with milled powder showed higher hardness. The microstructure of the as quenched specimens fabricated by sintering using mixed and milled powder almost are same, but the hardness of as quenched specimen fabricated by using mixed powder increased due to solution hardening of Nb in Ti matrix. The aging effect of these specimens on microstructural change and hardening is not prominent.

Keywords

References

  1. D. Kuroda, M. Niinomi, M. Morinaga, Y. Kato and T. Yashiro, Mater. Sci. Eng., A243, 244 (1998) https://doi.org/10.1016/S0921-5093(97)00808-3
  2. S. Hanada, Development of Beta Titanium Alloys with Low Young's Modulus, Korea-Japan International Symposium on Titanium, CAMTIC, 5 March, (2004)
  3. J. C. Williams, B. S. Hickman and D. H. Lesile, Metall. Trans., 2, 477 (1971) https://doi.org/10.1007/BF02663337
  4. I. H. Oh, N. Nomura and S. Hanada, Mater. Trans., 43, 443 (2002) https://doi.org/10.2320/matertrans.43.443
  5. P. Kovacs and J. A. Davidson, Science & Technology, The Inst. Materials, London, 2705 (1996)
  6. T. Ahmed, M. Long, J. Silvestri, C. Ruiz and H. J. Rack, Titanium Science & Technology, The Inst. Materials, London, (1996)
  7. E. M. Collings, The Physical Metallurgy of Titanium Alloys, ASM, 39-45, (1984)
  8. D. J. Lee, K. K. Lee, K. M. Lee, J. Y. Hwang, J. Kor. Foundarymen's Society, 23, 204 (2003)
  9. I. J. Polmear, Light Alloys, Metallurgical and Materials Science Series, Edward Arnold, London, 1981, pp 162-208
  10. K. D. Woo, Private, (Metal and Materials Inter., submitted)