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Plastic Deformation of Directionally-Solidified MoSi2/Mo5Si3 Eutectic Composites

Published online by Cambridge University Press:  07 February 2013

Yuta Sasai ,
Atsushi Inoue ,
Kosuke Fujiwara ,
Kyosuke Kishida  and
Haruyuki Inui
Yuta Sasai
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Atsushi Inoue
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Kosuke Fujiwara
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Kyosuke Kishida
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
Haruyuki Inui
Affiliation:
Department of Materials Science and Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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Abstract

Deformation behavior of the directionally-solidified MoSi2/Mo5Si3 eutectic composites has been investigated as a function of the average thickness of MoSi2 phase over a temperature range from 900 to 1500°C. The average thickness of both MoSi2 and Mo5Si3 phases in the directionally-solidified ingots with script-lamellar morphologies grown by optical floating zone method decreases with increasing the growth rate. Plastic deformation was observed above 1000°C for all the DS ingots grown at different growth rates when the loading axis is parallel to [1¯10]MoSi2 close to the growth direction. Yield stress decreases monotonically with increasing temperature. Yield stress at 1400°C increases drastically with decreasing the average thickness of MoSi2 phase.

Keywords

stress/strain relationshipstrengthtransmission electron microscopy (TEM)
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1516: Symposium JJ – Intermetallic-Based Alloys―Science, Technology and Applications , 2013 , pp. 195 - 200
Copyright
Copyright © Materials Research Society 2013 

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References

REFERENCES

Vasudevan, A. K. and Petrovic, J. J., Mater. Sci. Eng. A, 155, 1 (1992).CrossRefGoogle Scholar
Ito, K., Inui, H., Shirai, Y., and Yamaguchi, M., Philos. Mag. A, 72, 1075 (1995).CrossRefGoogle Scholar
Mason, D. P., Van Aken, D. C., and Mansfield, J. F., Acta metal. mater., 43, 1189 (1995).10.1016/0956-7151(94)00318-CCrossRefGoogle Scholar
Mason, D. P. and Van Aken, D. C., Acta metal. mater., 43, 1201 (1995).CrossRefGoogle Scholar
Kishida, K., Fujiwawra, M., Adachi, H., Tanaka, K., and Inui, H., Acta Mater., 58, 846 (2010).CrossRefGoogle Scholar
Ochiai, Y., Kishida, K., Tanaka, K., and Inui, H., in Intermetallic-Based Alloys for Structural and Functional Applications, edited by Bewlay, B., Palm, M., Kumar, S., and Yoshimi, K. (Mater. Res. Soc. Symp. Proc., 1295, Warrendale, PA, 2011), pp. 213–218.Google Scholar