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Formation of Mg–Mg2Cu nanostructured eutectic in Mg-based metal matrix composite

Published online by Cambridge University Press:  31 January 2011

N. G. Ma ,
C. J. Deng ,
P. Yu ,
W. Y. Kwok ,
M. Aravind ,
D. H. L. Ng  and
S. L. I. Chan
N. G. Ma
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
C. J. Deng
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
P. Yu
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
W. Y. Kwok
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
M. Aravind
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
D. H. L. Ng
Affiliation:
Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, People's Republic of China
S. L. I. Chan
Affiliation:
Department of Materials Science and Engineering, National Taiwan University, Taiwan, Republic of China
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Abstract

We report the fabrication and characterization of a Mg-based metal matrix composite reinforced by MgO ceramic and Mg–Mg2Cu eutectic. The composite was fabricated by sintering and quenching of a Mg–20 wt.% CuO sample. We performed differential scanning calorimetry (DSC) on the sample and found that the reaction between Mg and CuO took place at about 420 °C. When the sample was sintered to 550 °C and cooled down, the two-phase Mg–Mg2 Cu eutectic formed. The final composite product contained MgO particles and Mg–Mg2Cu eutectic, which were embedded in the Mg matrix. Based on the results from DSC and scanning and transmission electron microscopies, a model is proposed to describe the competitive growth of Mg and the eutectic during solidification. We also found that the microstructure of the Mg–Mg2 Cu eutectic strongly depended on the rate of cooling. The lamellar thickness of the eutectic could be reduced to 120 nm by oil-quenching the sintered sample.

Type
Articles
Information
Journal of Materials Research , Volume 18 , Issue 8 , August 2003 , pp. 1934 - 1942
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

Shen, Y.L., Williams, J.J., Piotrowski, G., Chawla, N., and Y.L.Guo, Acta Mater. 49, 3219 (2001).CrossRefGoogle Scholar
Guo, Z.X. and Derby, B., Prog. Mater. Sci. 39, 411 (1995).CrossRefGoogle Scholar
Li, Y.F., Qin, C.D., and Ng, D.H.L., J. Mater. Res. 14, 2997 (1999).CrossRefGoogle Scholar
Mayencourt, C. and Schaller, R., Acta Mater. 46, 6103 (1998).CrossRefGoogle Scholar
Rudajevova, A., Kiehn, J., Kainer, K.U., Mordike, B.L., and Lukac, P., Scripta Mater. 40, 57 (1998).CrossRefGoogle Scholar
Hu, H., Scripta Mater. 39, 1015 (1998).CrossRefGoogle Scholar
Chmelik, F., Kiehn, J., Lukac, P., Kainer, K.U., and Mordike, B.L., Scripta Mater. 38, 81 (1997).CrossRefGoogle Scholar
Wu, F., Zhu, J., Chen, Y., and Zhang, G., Mater. Sci. Eng. A 277, 143 (2000).CrossRefGoogle Scholar
Matin, M.A., Lu, L., and Gupta, M., Scripta Mater. 45, 479 (2001).CrossRefGoogle Scholar
Gutman, I., Klinger, L., Gotman, I., and Shapiro, M., Scripta Mater. 45, 363 (2001).CrossRefGoogle Scholar
Greil, P., Adv. Mater. 14, 709 (2002).3.0.CO;2-9>CrossRefGoogle Scholar
Tjong, S.C. and Ma, Z.Y., Mater. Sci. Eng. A 29, 49 (2000).CrossRefGoogle Scholar
Celotto, S., Acta Mater. 48, 1775 (2000).CrossRefGoogle Scholar
Chikamatsu, N., Tagawa, T., and Goto, S., J. Mater. Sci. 30, 1367 (1995).CrossRefGoogle Scholar
Oelerich, W., Klassen, T., and Bormann, R., J. Alloys Comp. 315, 237 (2001).CrossRefGoogle Scholar
Yamamoto, K., Tanioka, S., Tsushio, Y., Shimizu, T., Morishita, T., Orimo, S., and Fujii, H., J. Alloys Comp. 243, 144 (1996).CrossRefGoogle Scholar
Ji, Y. and Yeomans, J.A., J. Eur. Ceram. Soc. 22, 1927 (2002).CrossRefGoogle Scholar
Gao, L., Wang, H.Z., Kawaoka, H., Sekino, T., and Niihara, K., J. Eur. Ceram. Soc. 22, 785 (2002).CrossRefGoogle Scholar
Calderon-Moreno, J.M., Schehl, M., and Popa, M., Acta Mater. 50, 3973 (2002).CrossRefGoogle Scholar
J.M. Calderon-Moreno and M. Yoshimura, Scripta Mater. 44, 2153 (2001).CrossRefGoogle Scholar
Kuznetsov, V.N., Ponomareva, E.G., and Noskova, N.I., J Non-Cryst. Solids 205–207, 829 (1996).CrossRefGoogle Scholar
Baker, H., Alloy Phase Diagrams, Vol. 2 (American Society for Metals, Metals Park, OH, 1992), p. 172.Google Scholar
Liang, Y.J. and Che, Y.C., Handbook of Thermodynamic Data of Inorganic Substances (Dong Bei University Press, Shenyang, People’s Republic of China, 1993).Google Scholar
Kurz, W. and Fisher, D.J., Fundamentals of Solidification, 4th ed. (Trans Tech Publications Ltd, Aedermannsdorf, Switzerland, 1998), pp. 108, 149.Google Scholar
Rosa, C.D., Park, C., Thomas, E.L., and Lotz, B., Nature 405, 433 (2000).CrossRefGoogle Scholar
Askeland, D.R., The Science and Engineering of Materials, 3rd ed. (PWS Publishing Company, Boston, MA, 1994), p. 280.Google Scholar
Porter, D.A. and Easterling, K.E., Phase Transformations in Metals and Alloys, 2nd ed. (Chapman and Hall, London, 1992), p. 194.CrossRefGoogle Scholar
Schlapbach, L. and Zuttel, A., Nature 414, 353 (2001).CrossRefGoogle Scholar
Akiyama, T., Isogai, H., and Yagi, J., J. Alloys Comp. 252, L1 (1997).CrossRefGoogle Scholar
Yamamoto, K., Tsushio, Y., Tanioka, S., Shimizu, T., Morishita, T., Orimo, S., and Fujii, H., J. Alloys Comp. 231, 689 (1995).CrossRefGoogle Scholar