Manufacturing Technology 2012, 12(2):254-259 | DOI: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/254

The effect of heat treatment on the structure of Nb and C doped Fe3Al iron aluminides

Martin ©vec, Věra Vodičková, Pavel Hanus
Department of Material Science, Technical University of Liberec, Studentská 2, 461 17 Liberec 1, Czech Republic

The alloyed iron aluminides with Fe3Al matrix are used as structural materials. Nb, Zr, Ta additives in combination with carbon appear like promising for high-temperature applications [1, 2]. The carbon addition leads to the formation of carbides (NbC, ZrC, TaC) in the structure of the alloy [2, 3]. The presence of this phase in an appropriate shape could enhance high-temperature mechanical properties of aluminides. The effect of the Nb and C addition and the effect of the heat treatment on the phase composition of this alloy were studied [4, 5]. The alloys investigated in this work were annealed at 1000°C/1h and 1150°C/1h in the air. The phase composition was studied by light optical microscopy (LOM) and scanning electron microscopy (SEM) with energy dispersive analysis (EDX).

Keywords: Fe3Al type aluminides, Nb and C addition, phase composition, heat treatment

Published: December 1, 2012  Show citation

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©vec M, Vodičková V, Hanus P. The effect of heat treatment on the structure of Nb and C doped Fe3Al iron aluminides. Manufacturing Technology. 2012;12(2):254-259. doi: 10.21062/ujep/x.2012/a/1213-2489/MT/12/2/254.
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    References

    1. MC KAMEY, C. G. Iron Aluminides. In Physical Metalurgy and processing of Intermetallic Compounds, eds. STOLOFF N. S. - SIKKA V. K., 1994, 351 - 391. Go to original source...
    2. KEJZLAR, P.; KRATOCHVÍL P. Examination of the structure and the phase composition of the alloy Fe30Al5Zr. Manufacturing Technology, Vol. X., 2010, December, p. 70-75. ISSN 1213-2489, ISBN 978-80-7414-325-0. Go to original source...
    3. SCHNEIDER, A. et. al. Constitution and microstructures of Fe - Al - M - C (M = Ti, V, Nb, Ta) alloys with carbides and Laves phase. In Intermetallics 11 (2003), 443 - 450. Go to original source...
    4. MORRIS, D. G. Possibilities for high - temperature strengthening in iron aluminides. In Intermetallics 6 (1998), 753 - 758. Go to original source...
    5. PALM, M. Concepts derived from phase diagram studies for the strengthening of Fe - Al-based alloys. In Intermetallics 13 (2005), 1286 - 1295.
    6. PALM, M. Fe-Al materials for structural applications at high temperatures: Current research at MPIE. In International Journal of Materials Research (2009), 277 - 287. Go to original source...
    7. FALAT, L., et. al. Mechanical properties of Fe-Al-M-C (M = Ti, V, Nb, Ta) alloys with strengthening carbides and Laves phase. In Intermetallics 13 (2005), 1256 - 1262. Go to original source...
    8. PALM, M. Phase equilibria in the Fe corner of the Fe - Al - Nb system between 800 and 1150°C. In Journal of Alloys and Compounds (2009). 173 - 177. Go to original source...
    9. PRYMAK, O.; STEIN, F. Solidification and high-temperature phase equilibria in the Fe-Al-rich part of the Fe-Al-Nb system. In Intermetallics 18 (2010), 1322 - 1326. Go to original source...
    10. MORRIS, D, G, et. al. A study of precipitation in DO3 ordered Fe-Al-Nb alloy. In Intermetallics 13 (2005), 862 - 871. Go to original source...
    11. MORRIS, D, G, et. al. Strengthening at high temperatures by precipitates in Fe-Al-Nb alloys. In Intermetallics 14 (2006), 1204 - 1207. Go to original source...
    12. GAGLIANO, M. S.; FINE, M. E. Precipitation Kinetics of Niobium Carbide and Copper in a Low Carbon, Chromium-Free Steel. In Calphad (2001), Volume 25, 207 - 216. Go to original source...

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