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Multiphase Mo-Si-B alloys processed by directional solidification

Published online by Cambridge University Press:  28 December 2012

Manja Krüger ,
Georg Hasemann ,
Iurii Bogomol  and
Petr I. Loboda
Manja Krüger
Affiliation:
Otto-von-Guericke University Magdeburg, Institute for Materials and Joining Technology, P.O. Box 4120, D-39016Magdeburg, Germany
Georg Hasemann
Affiliation:
Otto-von-Guericke University Magdeburg, Institute for Materials and Joining Technology, P.O. Box 4120, D-39016Magdeburg, Germany
Iurii Bogomol
Affiliation:
National Technical University of Ukraine“Kiyv Polytechnic Institute”, Kiev, Ukraine
Petr I. Loboda
Affiliation:
National Technical University of Ukraine“Kiyv Polytechnic Institute”, Kiev, Ukraine
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Abstract

Multiphase Mo-Si-B alloys are potential candidates for applications in the aerospace and power generation industry due to their enhanced creep and oxidation resistance at ultra-high temperatures. It is documented that the microstructure and the resulting properties of Mo-based alloys are heavily influenced by their fabrication procedure. In this study we investigate different multiphase Mo-Si-B alloys processed by zone melting (ZM) starting from cold pressed elemental powders. Microstructural characterization of zone melted alloys based on SEM investigations shows elongated arrangements of phases parallel to the growing direction as well as homogeneously distributed phases in the cross-section for some of the alloys investigated. First compression creep tests were performed at about 1100°C. In comparison to the creep resistance of powder metallurgically (PM) processed alloys the behaviour of ZM materials was found to be substantially improved. Hence, targeted application temperatures of around 1200°C to 1300°C may become feasible. Furthermore, the oxidation behaviour was found to be influenced by the volume fraction of the Mo solid solution phase since the volatilization of the Mo solid solution phase leads to a mass loss of the compound.

Keywords

zone meltingdirectional solidificationmicrostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1516: Symposium JJ – Intermetallic-Based Alloys—Science, Technology and Applications , 2013 , pp. 303 - 308
Copyright
Copyright © Materials Research Society 2012 

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References

REFERENCES

Schneibel, J. H., Ritchie, R. O., Kruzic, J. J., Tortorelli, P. F., Metall. Mater. Trans. 36 A, 525 (2005)CrossRefGoogle Scholar
Choe, H., Chen, D., Schneibel, J. H., Ritchie, R. O., Intermetallics 9, 319 (2001)CrossRefGoogle Scholar
Berczik, D. M., U.S. Patent 5,595,616, East Hartford, United Technologies Corp. (1997)Google Scholar
Krüger, M., Franz, S., Saage, H., Heilmaier, M., Schneibel, J.H., Jéhanno, P., Böning, M., Kestler, H., Intermetallics 16, 933 (2008)CrossRefGoogle Scholar
Jéhanno, P., Heilmaier, M., Saage, H., Böning, M., Kestler, H., Freudenberger, J., Drawin, S., Materials Science and Engineering A 463, 216 (2007)CrossRefGoogle Scholar
VerSnyder, F. L. and Shank, M. E., Mater. Sci. Eng. 6, 213 (1970)CrossRefGoogle Scholar
Bei, H., George, E. P., Kenik, E. A., Pharr, G. M., Acta Mater. 51, 6241 (2003)CrossRefGoogle Scholar
Bei, H., George, E. P., Acta Mater. 53, 69 (2005)CrossRefGoogle Scholar
Krüger, M., Heilmaier, M., Shyrska, V., Loboda, P. I., Mater. Res. Soc. Symp. Proc. Vol.1295, DOI 10.1557 (2011)CrossRefGoogle Scholar
Yang, Y., Chang, Y. A., Intermetallics 13, 121 (2005)CrossRefGoogle Scholar
Kryklyva, I., Dudka, A., Heilmaier, M., Physics and Chemistry of Solid State 12, 365 (2011), in Ukraine Google Scholar
Hasemann, G., Krüger, M., Bogomol, I., Loboda, P. I., manuscript in preparation.Google Scholar
Ha, S.-H., Yoshimi, K., Maruyama, K., Tu, R., Goto, T., Mater. Sci. Eng. A 552, 179 (2012)CrossRefGoogle Scholar
Heilmaier, M., Krüger, M., Saage, H., Rösler, J., Mukherji, D., Glatzel, U., Völkl, R., Hüttner, R., Eggeler, G., Somsen, C., Depka, T., Christ, H.-J., Gorr, B., and Burk, S., JOM 61, 7, 61 (2010)CrossRefGoogle Scholar
Frost, H. J., Ashby, M. F., Pergamon Press, ISBN 0-08-029338-7.1987.Google Scholar
Hassomeris, O., Schumacher, G., Krüger, M., Heilmaier, M., Banhart, J., Intermetallics 19, 470 (2011)CrossRefGoogle Scholar
Alur, A. P., Chollacoop, N., Kumar, K. S., Acta Mater. 52, 5571 (2004)CrossRefGoogle Scholar
Parthasarathy, T. A., Mendiratta, M. and Dimiduk, D. M., Acta Mat. 50, 1857 (2002)CrossRefGoogle Scholar
Burk, S., Gorr, B., Trindade, V. B. and Christ, H.-J., Oxid Met 73, 163 (2010)CrossRefGoogle Scholar