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Computer-Aided Development of Multicomponent Metallic Glasses

Published online by Cambridge University Press:  11 February 2011

Akira Takeuchi  and
Akihisa Inoue
Akira Takeuchi
Affiliation:
Institute for Materials Research, Tohoku University, Sendai, 980–8577, JAPAN
Akihisa Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Sendai, 980–8577, JAPAN
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Abstract

Asynthesized calculation model for developing metallic glasses has been created by taking into account criteria for the achievement of high glass-forming ability (GFA) and viscosity. The model deals with amorphous-forming composition region (AFCR), crystallization temperature (Tx) and three GFA factors: critical cooling rate (Rc), reduced glass-transition temperature (Tg/Tm) and supercooled liquid region (ΔTx=Tx-Tg) where Tg and Tm are glass transition and melting temperature, respectively. The principle of the model is based on thermodynamic functions for multicomponent systems, i.e., mismatch entropy and mixing enthalpy which express the criteria in terms of the number of elements, atomic size differences and the heat of mixing. By combining these thermodynamic quantities with the Miedema's semi-empirical model, AFCR was calculated, and was compared with the experimental results. The GFA factors were also analyzed from viscosity. The Rc was derived from transformation diagram of metallic glasses for crystallization while ΔTx was calculated by solving a differential equation expressing the change in free volume with temperature. As a result of these analyses, Rc-Tg/Tm and R-ΔTx diagrams were found to fit with the experimental results qualitatively. Furthermore, crystallization temperature (Tx) was also calculated for multicomponent metallic glasses by the modification of the Miedema's binary model for the calculation of Tx. The reduced crystallization temperature (Tx/Tl), where Tl is liquidus temperature, was calculated for evaluating GFA of metallic glasses instead of Tg/Tm. Some of the calculation methods used in the present study have theadvantage giving results as a function of composition; thus, there exists possibility to lead to the prediction of glassy alloys compositions. In this sense, the present calculation methods are completely different to the current method for the development of new metallic glasses relying on the empirical criteria which suggest only appropriate systems and/or elements of the alloysfor the achievement of high GFA. In near future, this kind of calculation technique can be used for the prediction of optimal compositions of the metallic glasses with high GFA.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 754: Symposium CC – Supercooled Liquids, Glass Transition and Bulk Metallic Glasses , 2002 , CC2.3
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

1. Klement, W., Willens, R.H. and Duwez, P., Nature 187, 869–870 (1960).Google Scholar
2. Inoue, A., “Bulk Amorphous Alloys -Preparation and Fundamental Characteristics-“, Materials Science Foundations 4, ed. Magini, M. and Wöhlbier, F.H. (Trans Tech Publications, 1998), pp. 1–116.Google Scholar
3. Inoue, A., Nishiyama, N. and Kimura, H.M., Mater. Trans., JIM 38, 179–183 (1997).Google Scholar
4. Mader, S., Nowick, A.S., and Widmer, H., Acta Metall. 15, 203–215 (1967).Google Scholar
5. Simpson, A.W. and Hodkinson, P.A., Nature 237, 320–322 (1972),.Google Scholar
6. Egami, T. and Waseda, Y., J. Non-Cryst. Solids 64, 113–134 (1984).Google Scholar
7. Egami, T. and Aur, S., J. Non-Cryst. Solids 89, 60–74 (1987).Google Scholar
8. Chen, H.S., Rep. Prog. Phys. 43, 353–432 (1980).Google Scholar
9. Uhlmann, D.R., J. Non-Cryst. Solids 7, 337–348 (1972).Google Scholar
10. Davies, H.A., “Rapid Quenching and Formation of Metallic Glasses“, Rapidly Quenched Metals III, 1, ed. Cantor, B., (The Metal Society, 1978), pp. 1–21.Google Scholar
11. Nagel, S.R. and Tauc, J., Solid State Comm. 22, 129–132 (1977).Google Scholar
12. Shek, C.H., Wang, Y.M. and Dong, C., Mat. Sci. Eng. A291, 78–85 (2000).Google Scholar
13. Murty, B.S., Ranganathan, S. and Rao, M. M., Mater. Sci. Eng. A149, 231–240 (1992).Google Scholar
14. Bakker, H., Zhow, G.F. and Yang, H., Prog. Mater. Sci. 39, 159–241(1995).Google Scholar
15. Bakker, H., “Enghalpies in Alloy, Miedema's Semi-Empirical Model“, Materials Science Foundations 1, ed. Magini, M. and Wöhlbier, F.H. (Trans Tech Publications, Netherlands., 1998), pp. 1–66.Google Scholar
16. “Cohesion in Metals“, ed. Boer, F.R. and Perrifor, D.G. (Elsevier Science Publishers B.V., 1988) pp. 1–758.Google Scholar
17. van den Beukel, A. and Sietsma, J., Acta Metall. Mater. 38, 383–389 (1990).Google Scholar
18. Simono, M. and Onodera, H., Scripta Mater. 44, 1595–1598 (2001).Google Scholar
19. Mansoori, G.A., Carnahan, N.F., Starling, K.E. and Leland, T.W. Jr, J. Chem. Phys. 54, 1523–1525 (1971).Google Scholar
20. Takeuchi, A. and Inoue, A., Mater. Sci. Eng. 304–306, 446–451 (2001).Google Scholar
21. Takeuchi, A. and Inoue, A., Mater. Trans. JIM 41, 1372–1378(2000).Google Scholar
22. Takeuchi, A. and Inoue, A., Mater. Trans. 42, 1435–1444 (2001).Google Scholar
23. Takeuchi, A. and Inoue, A., Mater. Trans. 42, 2374–2381 (2001).Google Scholar
24. Takeuchi, A. and Inoue, A., Mater. Trans. 43, 1205–1213 (2003).Google Scholar
25. Takeuchi, A. and Inoue, A., Mater. Trans. 43, 2275–2284 (2003).Google Scholar
26. Hidebrand, J.H., J. Am. Chem. Soc. 51, 66–80 (1929).Google Scholar
27. “Metals Reference Book“, 5th ed. ed. Smithells, C.J. and Brandes, E.A. (Butterworths, 1976), p. 994.Google Scholar
28. Eshelby, J.D., Solid State Phys. 3, 79–144 (1956).Google Scholar
29. “Nonequilibrium Phase Diagrams of Ternary Amorphous Alloys“, LB, New Ser., Group III, Condensed, Vol. 37, ed. Kawazoe, Y., Masumoto, T., Suzuki, K., Inoue, A., Yu, J.-Z., Aihara, T. Jr, Nakanomyo, T. and Tsai, A.P., (Springer, 1997) pp. 1–295.Google Scholar
30. Inoue, A., Acta Mater. 48, 279–306 (2000).Google Scholar
31. Inoue, A., Zhang, T. and Masumoto, T., Mater. Trans., JIM 30, 965–972 (1989).Google Scholar
32. Lu, Z.P., Li, Y. and Ng, S.C., J. Non-Cryst. Solids 270 103–114 (2000).Google Scholar
33. Lu, Z.P., Tan, H., Li, Y. and Ng, S.C., Scr. Mater. 42 667–673 (2000).Google Scholar