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Fe-based bulk metallic glasses with diameter thickness larger than one centimeter

Published online by Cambridge University Press:  03 March 2011

V. Ponnambalam ,
S. Joseph Poon  and
Gary J. Shiflet
V. Ponnambalam
Affiliation:
Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4714
S. Joseph Poon
Affiliation:
Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4714
Gary J. Shiflet*
Affiliation:
Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904-4745
*
a)Address all correspondence to this author. e-mail: sjp9x@virginia.edu
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Abstract

Fe–Cr–Mo–(Y,Ln)–C–B bulk metallic glasses (Ln are lanthanides) with maximum diameter thicknesses reaching 12 mm have been obtained by casting. The high glass formability is attained despite a low reduced glass transition temperature of 0.58. The inclusion of Y/Ln is motivated by the idea that elements with large atomic sizes can destabilize the competing crystalline phase, enabling the amorphous phase to be formed. It is found that the role of Y/Ln as a fluxing agent is relatively small in terms of glass formability enhancement. The obtained bulk metallic glasses are non-ferromagnetic and exhibit high elastic moduli of approximately 180–200 GPa and microhardness of approximately 13 GPa.

Keywords

CastingMetallic glassCalorimetry
Type
Rapid Communications
Information
Journal of Materials Research , Volume 19 , Issue 5 , May 2004 , pp. 1320 - 1323
Copyright
Copyright © Materials Research Society 2004

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References

REFERENCES

1Inoue, A., Shen, B.L., Yavari, A.R. and Greer, A.L., J. Mater. Res. 18, 1487 (2003).CrossRefGoogle Scholar
2Ponnambalam, V., Poon, S.J., Shiflet, G.J., Keppens, V.M., Taylor, R., and Petculescu, G., Appl. Phys. Lett. 83,1131 (2003).Google Scholar
3Inoue, A., Zhang, T. and Takeuchi, A., Appl. Phys. Lett. 71, 464 (1997).CrossRefGoogle Scholar
4Lu, Z.P., Liu, C.T., and Porter, W.D., Appl. Phys. Lett. 83, 2581 (2003).CrossRefGoogle Scholar
5Egami, T. and Waseda, Y., J. Non-Cryst. Solids 64, 113 (1984).CrossRefGoogle Scholar
6Migliori, A., Sarrao, J.L., Visscher, W.M., Bell, T.M., Ming, Lei, Fisk, Z., and Leisure, R.G., Physica B 183, 1 (1993).CrossRefGoogle Scholar
7Chen, L.C. and Spaepen, F., Nature 336, 366 (1988).Google Scholar
8Christian, J.W., The Theory of Transformation in Metals and Alloys 2nd ed. ,(Pergamon Press, New York, 1975).Google Scholar
9Steels Metallurgy and Applications , Llewellyn, D. and Hudd, R., 3rd ed. (Butterworth-Heinemann, Boston, 1998).Google Scholar
10Villars, P., Prince, A. and Okamoto, H., Handbook of Ternary Alloy Phase Diagrams (ASM International, Materials Park, OH, 1995).Google Scholar
11 M. Widom, D.M. Nicholson, and Y. Wang: (private communications).Google Scholar
12Shen, T.D. and Schwarz, R.B., Appl. Phys. Lett. 75, 49 (1999).CrossRefGoogle Scholar