Abstract
The effects of the addition of Mo on the densification mechanism, microstructure evolution and mechanical strength of blended elemental powder metallurgy Ti-Mo alloy were investigated in this work. The results show that the addition of Mo hinders the densification of Ti-Mo alloy due to the low diffusion rate of Mo atoms in β-Ti matrix, and the increase of Mo content worsens the sinterability of Ti-Mo alloy. However, the addition of Mo can also refine the microstructure of Ti-Mo alloy greatly, and raising sintering temperature can effectively increase the alloy density without grain coarsening. When neglecting the relative density factor, the addition of Mo refines the microstructure, and improves the mechanical strength by Hall-Petch relationship.
Similar content being viewed by others
References
Dobbs H S, Robertson J L M. Alloys for orthopaedic implant use[J]. Engineering in Medicine, 1982, 11(4): 175–182.
Simpson J P. Electrochemical behavior of titanium and titanium alloy[J]. Advances in Biomaterials, 1986: 63–68.
Williams J M, Buchanan R A. Ion implantation of surgical Ti-6Al-4V[J]. Materials Science and Engineering A, 1984, 69(1): 237–246.
Kawahara H. Materials for hard tissue[J]. Materials Science Monographs, 1986: 167–206.
Dobbs H S, Scales J T. Behavior of commercially pure titanium and Ti-318 (Ti-6Al-4V) in orthopeadic implants[A]. PA: ASTM International[C]. ASTM Special Technical Publication, 1983: 173–186.
Lucas L C, Lemons J E, Buchanan R A. Biocompatibility evaluations of Fe, Co and Ti base alloys[J]. Transactions of the Annual Meeting of the Society for Biomaterials in Conjunction with the Interna, 1983, 6: 65–69.
Fukui H, Wei Y, Morita A, et al. Study of biocompatible and high melting point Ti-Ta-Nb ternary alloys: development of a non-contaminating melting process[J]. International Journal of Materials and Product Technology, 2001, 16(2): 461–467.
Ito A, Okazaki Y, Tateishi T, et al. In vitro biocompatibility, mechanical properties, and corrosion resistance of Ti-Zr-Nb-Ta-Pd and Ti-Sn-Nb-Ta-Pd alloys[J]. Journal of Biomedical Materials Research, 1995, 29(7): 893–899.
Okazaki Y, Rao S, Ito Y, et al. Corrosion resistance, mechanical properties, corrosion fatigue strength and cytocompatibility of new Ti alloys without Al and V[J]. Biomaterials, 1998, 19(13): 1197–1215.
HO W F, JU C P, LIN J H. Structure and properties of cast binary Ti-Mo alloys[J]. Biomaterials, 1999, 22–20: 2115–2122.
WANG K K, Gustavson L J, Dumbleton J H. Microstructure and properties of a new beta titanium alloy, Ti-12Mo-6Zr-2Fe, developed for surgical implants[A]. PA: ASTM International[C]. ASTM Special Technical Publication, 1996: 76–86.
WANG K, Gustavson L, Dumbleton J. Characterization of Ti-12Mo-6Zr-2Fe: A new biocompatible titanium alloy developed for surgical implants[A]. TMS Annual Meeting 1993[C]. Publ by Minerals, Metals & Materials Soc (TMS), 1993.
Ikeda M, Komatsu S, Sugimoto T, et al. Effect of two phase warm rolling on aging behavior and mechanical properties of Ti-15Mo-5Zr-3Al alloy[J]. Materials Science & Engineering A, 1998, 243 (1–2): 140–145.
Kim H M, Takadama H, Kokubo T, et al. Formation of a bioactive graded surface structure on Ti-15Mo-5Zr-3Al alloy by chemical treatment[J]. Biomaterials, 2000, 21(4): 353.
Mishra A K, Davidson J A, Poggie R A, et al. Mechanical and tribological properties and biocompatibility of diffusion hardened Ti-13Nb-13Zr-A new titanium alloy for surgical implants[A]. PA: ASTM International[C]. ASTM Special Technical Publication, 1996: 96–609.
Kuroda D, Niinomi M, Fukui H, et al. Tensile properties and cyto-toxicity of new biomedical β-type titanium alloys[J]. Journal of the Iron and Steel Institute of Japan, 2000, 86 (9): 602–609.
Niinomi M, Kuroda D, Fukunaga K I, et al. Mechanical and biological properties of newly designed Ti-Nb-Ta-Zr system alloy[J]. International Journal of Materials and Product Technology, 2001, 2: 598–603.
Kasuga T, Nogami M, Kuroda D, et al. Bioactive calcium phosphate invert glass-ceramic coating on β-type Ti-29Nb-13Ta-4. 6 Zr alloy[J]. Biomaterials, 2003, 24(2): 283–290.
Hales R, Dobson P S, Smallman R E. Effect of oxidation on Herring-Nabarro creep in magnesium. Acta Metall, 1969, 17(11): 1323–1326.
Onodera H, Ohyama H, Nakajima H, et al. Impurity diffusion behavior in β-titanium[J]. Defect and Diffusion Forum, 1993,95–98: 729–734.
Maeda T, Onodera H, Watakabe S, et al. Interdiffusion in binary beta titanium alloys[A]. Proc Int Symp on Metallurgy and Technology of Practical Titanium Alloys[C]. 1993: 53–61.
HUANG P Y. Principle of Powder Metallurgy (in Chinese)[M]. Bei**g: Metallurgy Industry Press, 1997.
Author information
Authors and Affiliations
Additional information
Foundation item: The National Advanced Materials Committees of China (No. 2001AA332010)
Biography of the first author: LIU Yong, PhD, associate professor, born in 1973, majoring in powder metallurgy.
Rights and permissions
About this article
Cite this article
Liu, Y., Wei, Wf., Zhou, Kc. et al. Microstructures and mechanical behavior of PM Ti-Mo alloy. J Cent. South Univ. Technol. 10, 81–86 (2003). https://doi.org/10.1007/s11771-003-0043-5
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11771-003-0043-5