Hostname: page-component-745bb68f8f-grxwn Total loading time: 0 Render date: 2025-01-28T23:52:19.837Z Has data issue: false hasContentIssue false
  • English
  • Français

Ductile Dendritic Phase Reinforced Ti-Base Bulk Metallic Glass-Forming Alloys

Published online by Cambridge University Press:  11 February 2011

G. He ,
J. Eckert ,
W. Löser  and
L. Schultz
G. He
Affiliation:
IFW Dresden, Institut für Metallische Werkstoffe, Postfach 270016, D-01171 Dresden, Germany
J. Eckert
Affiliation:
IFW Dresden, Institut für Metallische Werkstoffe, Postfach 270016, D-01171 Dresden, Germany
W. Löser
Affiliation:
IFW Dresden, Institut für Metallische Werkstoffe, Postfach 270016, D-01171 Dresden, Germany
L. Schultz
Affiliation:
IFW Dresden, Institut für Metallische Werkstoffe, Postfach 270016, D-01171 Dresden, Germany
Get access

Abstract

Bulk metallic glasses (BMG) exhibit high strength but limited ductility due to their inhomogeneous deformation behavior under load, which seriously limits their application. To prevent the inhomogeneous deformation, attempts have been made by introducing in situ formed ductile dendritic phases in present study. Ti-base BMG-forming alloys were selected and modified by adding refractory metals Nb, Ta, Mo and Zr. Ductile dendrites / nanostructured matrix composites were synthesized which exhibit a plastic strain larger than 14% together with high strength (ultimate strength higher than 2400 MPa). The experimental results show evidence that shear banding is the main deformation mode in nanostructured matrix. The localized shear bands are limited in the inter-dendrite regions by micrometer-sized dendrites. The dendrites act as obstacles to limit the excessive deformation in the localized shear bands and contribute to the plasticity by dislocations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 754: Symposium CC – Supercooled Liquids, Glass Transition and Bulk Metallic Glasses , 2002 , CC11.12
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Johnson, W. L., MRS Bull. 24, 42 (1999).Google Scholar
2. Inoue, A., Acta Mater. 48, 279 (2000).Google Scholar
3. Greer, L., Science 267, 1947 (1995).Google Scholar
4. Nieh, T. G., Wadsworth, J., Liu, C. T., Ohkubo, Y. and Hirotsu, Y., Acta Mater. 49, 2887 (2001).Google Scholar
5. Liu, C. T., Heatherly, L., Eaton, D. S., Carmichael, C. A., Schneibel, J. H., Chen, C. H., Wright, J. L., Yoo, M. H., Horton, J. A and Inoue, A., Metall. Mater. Trans. 29A, 1811 (1998).Google Scholar
6. Bruck, H. A., Christman, T., Rosakis, A. J. and Johnson, W. L., Scr. Metall. Mater. 30, 429 (1994).Google Scholar
7. Choi-Yim, H., Busch, R., Koster, U. and Johnson, W. L., Acta Mater. 47, 2455 (1999).Google Scholar
8. Eckert, J., Kuebler, A. and Schultz, L., J. App. Phy. 85, 7112 (1999).Google Scholar
9. Fan, C. and Inoue, A., Mater. Trans., JIM 40, 42 (1999).Google Scholar
10. Dandliker, R. B., Conner, R. D. and Johnson, W. L., J. Mater. Res. 13, 2896 (1998).Google Scholar
11. Kim, C. P., Busch, R., Masuhr, A., Choi-Yim, H. and Johnson, W. L., Appl. Phys. Lett. 79, 1456 (2001).Google Scholar
12. Conner, R. D., Dandliker, R. B. and Johnson, W. L., Acta Mater. 46, 6089 (1998).Google Scholar
13. Choi-Yim, H. and Johnson, W. L., Appl. Phys. Lett. 71, 3808 (1997).Google Scholar
14. Hays, C. C., Kim, C. P. and Johnson, W. L., Phys. Rev. Lett. 84, 2901 (2000).Google Scholar
15. Szuecs, F., Kim, C. P. and Johnson, W. L., Acta Mater. 49, 1507 (2001).Google Scholar
16. Kühn, U., Eckert, J., Mattern, N. and Schultz, L., Appl. Phys. Lett. 80, 2478 (2003).Google Scholar
17. Fan, C., Ott, R. T. and Hufnagel, T. C., Appl. Phys. Lett. 81, 1020 (2003).Google Scholar
18. He, G., Eckert, J. and Löser, W., Acta Mater. 51, 1621 (2003).Google Scholar
19. He, G., Eckert, J., Löser, W. and Schultz, L., Nature Mater. 2, 33 (2003).Google Scholar
20. Zhang, T. and Inoue, A., Mater. Trans., JIM 39, 1001 (1998).Google Scholar
21. Froes, F. H., Yau, T. L. and Weidinger, H. G., In: Mater. Sci. & Tech., Cahn, R. W., Haasen, P. and Kramer, E. J., Eds. (VCH, Weinheim, Germany, 1996), vol. 8, pp.403–435.Google Scholar
22. Inoue, A., Mater. Trans., JIM 36, 866 (1995).Google Scholar
23. Zhang, Z. F., Eckert, J. and Schultz, L., Acta Mater. 51, 1167 (2003).Google Scholar
24. He, G., Zhang, Z. F., Löser, W., Eckert, J. and Schultz, L., Acta Mater. 51, 2383 (2003).Google Scholar