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Investigation of the structure and properties of hypereutectic Ti-based bulk alloys

Published online by Cambridge University Press:  26 February 2011

Dmitri V. Louzguine-Luzgin ,
Larissa V. Louzguina-Luzgina  and
Akihisa Inoue
Dmitri V. Louzguine-Luzgin
Affiliation:
Institute for Materials Research, Tohoku University, Katahira 2–1–1, Aoba-Ku, Sendai 980–8577, Japan
Larissa V. Louzguina-Luzgina
Affiliation:
Research and Development Project, CREST, Japan Science and Technology Agency, Sendai 985–8577, Japan
Akihisa Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Katahira 2–1–1, Aoba-Ku, Sendai 980–8577, Japan
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Abstract

Structure and mechanical properties of binary Ti-TM (TM-other transition metals) and ternary Ti-Fe-(TM, B or Si) alloys produced in the shape of the arc-melted ingots of about 25 mm diameter and 10 mm height are studied. The formation of high-strength and ductile hypereutectic alloys was achieved in the Ti-Fe, Ti-Fe-Cu and Ti-Fe-B systems. The structures of the high-strength and ductile hypereutectic alloys studied by X-ray diffractometry and scanning electron microscopy were found to consist of the primary cubic Pm3 m intermetallic compound (TiFe-phase or a solid solution on its base) and a dispersed eutectic consisting of this Pm3m intermetallic compound + BCC Im 3 m β-Ti supersaturated solid solution phase. The hypereutectic Ti-Fe alloy showed excellent compressive mechanical properties. The addition of Cu improves its ductility. B addition increased mechanical strength. Ni, Cr and Mn additions caused embrittlement owing to the formation of alternative intermetallic compounds. The deformation behaviour and the fractography of the Ti-based alloys were studied in details. The reasons for the high strength and good ductility of the hypereutectic alloys are discussed.

Keywords

Ti-based alloysmechanical propertiesintermetallic compoundhigh strengthductility.
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 842: Symposium S – Integrative and Interdisciplinary Aspects of Intermetallics , 2004 , S4.3
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Brandes, E. A. and Brook, G. B.: Smithells, Metals Reference Book 7-th Edition Ed.(Butterworth-Heinemann Ltd., Hartnolls Ltd. Bodmin UK, 1992), p. 22–84.Google Scholar
2. Inoue, A., Nishiyama, N., Amiya, K., Zhang, T., and Masumoto, T. Mater. Lett. 19, 131 (1994).Google Scholar
3. Lin, X. H., and Johnson, W. L. J. Appl. Phys. 78, 6514 (1995).Google Scholar
4. Zhang, T., Inoue, A., and Masumoto, T. Mater Sci. Eng. A181/182, 1423 (1994).Google Scholar
5. Zhang, T., and Inoue, A. Mater. Trans. JIM 39, 1001 (1998).Google Scholar
6. Kim, Y. C., Kim, W. T. and Kim, D. H. Materials Science and Engineering A 375–377, 127 (2004).Google Scholar
7. Gale, W.F. and Totemeier, T. C. Eds. Smithells, , Metals Reference Book 8-th Edition (Elsevier Burlington 2004), p 31–1.Google Scholar
8. Johnson, W. L. MRS Bull, 24, 42 (1999).Google Scholar
9. Kim, Y.C., Yi, S., Kim, W.T. and Kim, D.H. Mater. Sci. Forum 360–362, 67 (2001).Google Scholar
10. He, G., Eckert, J., Loser, W., and Schultz, L. Nature Materials 2, 33 (2003).Google Scholar
11. He, G., Hagiwara, M., Eckert, J., Loser, W. Phil. Mag. Lett. 84, 365 (2004).Google Scholar
12. He, G., Eckert, J., Dai, Q. L., Sui, M. L., Löser, W., Hagiwara, M., Ma, E. Biomaterials 24, 5115 (2003).Google Scholar
13. Hays, C. C., Kim, C. P., and Johnson, W. L. Phys. Rev. Lett 84, 2901 (2000).Google Scholar
14. Louzguine, D. V., Kato, H. and Inoue, A. J. Alloys Comp, 2004., 384, L1 (2004).Google Scholar
15. Louzguine, D. V., Kato, H. and Inoue, A. J. of Met. and Nanocr. Mater., 2004, in press.Google Scholar
16. Louzguine, D. V., Kato, H. and Inoue, A. J. Alloys Comp. 375, 171 (2004).Google Scholar