Abstract
Mo–9Si–8B–1Ti, Mo–9Si–8B–1.8Ti, Mo–9Si–8B–0.2La and Mo–9Si–8B–0.4La2O3 (at.%) alloys were prepared using mechanical alloying followed by hot isostatic pressing and field assisted sintering. XRD, SEM and EBSD analysis confirmed the formation of Mo solid solution, A15 and T2 phases in the alloys. Isothermal oxidation behavior of the specimens was studied in the temperature range from 750 to 1,300 °C for up to 100 h. Both the Ti and La containing alloys showed superior oxidation behavior compared to unalloyed Mo–Si–B at 900 °C at the initial periods of oxidation. Ti-added alloys suffered higher rate of weight loss at higher temperatures (1,000–1,300 °C) due to the formation of non-protective low viscosity SiO2-TiO2-B2O3 scale. La-alloyed Mo–Si–B showed superior oxidation resistance at intermediate temperatures (900 °C) as well as at higher temperatures. Enrichment of La at the oxide/alloy interface was found to be the reason for improved oxidation behavior of La-alloyed Mo–Si–B. Amongst the four materials studied, the La2O3 containing alloy showed the best oxidation resistance at 900 °C.
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References
John H. Perepezko, Science 20, 2009 (1068).
M. Heilmaier, M. Kruger, H. Saage, J. Rosler, D. Mukherji, U. Glatzel, R. Volkl, R. Huttner, G. Eggeler, Ch Somsen, T. Depka, H.-J. Christ, B. Gorr and S. Burk, Journal of Metals 67, 2009 (61).
E. W. Lee, J. Cook, A. Khan, R. Mahapatra and J. Waldman, Journal of Metals 43, 1991 (54).
A. K. Vasudevan and J. J. Petrovic, Materials Science and Engineering A 155, 1992 (1).
D. E. Alman, K. G. Shaw, N. S. Stoloff and K. Rajan, Materials Science and Engineering A 155, 1992 (85).
T. C. Chou and T. G. Nieh, Scripta Metallurgical et Materialia 27, 1992 (19).
D. L. Anton and M. M. Shah, “High temperature properties of refractory intermetallics”, Materials Research Society Symposium Proceedings 213, 1991, pp. 733–739.
M. K. Meyer and M. Akinc, Journal of American Ceramic Society 79, 1996 (2763).
V. Supatarawanich, D. R. Johnson and C. T. Liu, Materials Science and Engineering A 344, 2003 (328).
T. A. Parthasarathy, M. G. Mendiratta and D. M. Dimiduk, Acta Materialia 50, 2002 (1857).
S. Burk, B. Gorr, V. B. Trindade and H.-J. Christ, Oxidation of Metals 73, 2010 (163).
B. A. Pint, Oxidation of Metals 49, 1998 (531).
N. Hiramatsu and F. H. Stott, Oxidation of Metals 51, 1999 (479).
B. A. Pint, Oxidation of Metals 45, 1996 (1).
T. J. Nijdam and W. G. Sloof, Acta Materialia 55, 2007 (5980).
D. Naumenko, B. Gleeson, E. Wessel, L. Singheiser and W. J. Quadakkers, Metallurgical and Materials Transactions A 38, 2007 (2974).
D. P. Whittle and J. Stringer, Philosophical Transactions of Royal Society London 295, 1980 (309).
M. G. Hebsur and J. R. Stephens, U. S. Patent No. 4,983,358 (8 January 1991).
A. Mueller, G. Wang, R. A. Rapp, E. L. Courtright and T. A. Kircher, Materials Science and Engineering A 155, 1992 (199).
Ying Yang, H. Bei, Shuanglin Chen, E. P. George, Jaimie Tiley and Austin Chang, Acta Materialia 58, 2010 (541).
H. Okamoto, Desk Handbook-Phase Diagrams for Binary Alloys, ASM International, 2000.
D. M. Dimiduk and J. H. Perepezko, MRS Bulletin 28, 2003 (639).
J. H. Schneibel, R. O. Ritchie, J. J. Kruzic and P. F. Tortorelli, Metallurgical and Materials Transactions A 36, 2005 (525).
S. H. Ehrmann, S. K. Friedlander and M. R. Zachariah, Journal of Materials Research 14, 1999 (4551).
Steffen Burk, Bronislava Gorr, Hans-Jürgen Christ, Daniel Schliephake, Martin Heilmaier, Christian Hochmuth and Uwe Glatzel, Scripta Materialia 66, 2012 (223).
Acknowledgments
S. Majumdar wishes to thank Alexander von Humboldt Foundation, Bonn for financial support of the research stay at Siegen. The research support by Deutsche Forschungsgemeinschaft (DFG) within the framework of the research unit 727 “Beyond Ni-Base Superalloys” is gratefully acknowledged.
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Majumdar, S., Burk, S., Schliephake, D. et al. A Study on Effect of Reactive and Rare Earth Element Additions on the Oxidation Behavior of Mo–Si–B System. Oxid Met 80, 219–230 (2013). https://doi.org/10.1007/s11085-013-9374-2
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DOI: https://doi.org/10.1007/s11085-013-9374-2