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HomeMaterials Science ForumMaterials Science Forum Vol. 879Oxidation of Fe-Al Alloys (5-40 at.% Al) at 700...

Oxidation of Fe-Al Alloys (5-40 at.% Al) at 700 and 900 °C

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Abstract:

Fe-Al alloys with Al contents between 5 and 40 at.% Al were oxidised for 1000 h in synthetic air at 700 and 900 °C to determine their oxidation behaviour. The minimum Al content which is necessary for the formation of protective Al₂O₃ scales decreases with increasing temperature from about 17 at.% Al at 700 °C to about 12 at.% Al at 900 °C. Established parabolic rate constants for the steady state growth of Al₂O₃ indicate formation of γ-Al₂O₃ at 700 °C while at 900 °C α-Al₂O₃ + Θ-Al₂O₃ scales form. At lower Al contents scales are predominantly formed by Fe₂O₃ as revealed by GI-XRD. It is also found that the oxidation behaviour is independent of the crystallographic order of the alloys, i.e. whether they are disordered A2 or ordered B2.

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THERMEC 2016

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Periodical:

Materials Science Forum (Volume 879)

Pages:

1245-1250

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.1245

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Online since:

November 2016

Authors:

Vera Marx, Martin Palm*

Keywords:

Iron Aluminides, Oxidation, Thermogravimetric Analysis

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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[1] D.G. Morris, M.A. Munoz-Morris, Adv. Eng. Mater. 13 (2011) 43-47.

[2] H. Hindam, D.P. Whittle, Oxid. Met. 18 (1982) 245-284.

[3] R. Prescott, M.J. Graham, Oxid. Met. 38 (1992) 73-87.

[4] K. Wefers, C. Misra, Oxides and hydroxides of aluminum, Alcoa Technical Paper No. 19 (1987) pp.1-92.

[5] H.J. Grabke, Intermetallics 7 (1999) 1153-1158.

[6] I. Rommerskirchen, Oxidationsverhalten von b-NiAl und b-FeAl sowie Fe-Al-Legierungen, Fortschritt-Berichte VDI Verlag Series 5, No. 422 (1996) pp.1-93.

[7] F. Lang, Z. Yu, S. Gedevanishvili, S.C. Deevi, T. Narita, Intermetallics 11 (2003) 697-705.

DOI: 10.1016/s0966-9795(03)00067-0

[8] D. Das, D.R. Balasubramaniam, M.N. Mungole, J. Mater. Sci. 37 (2002) 1135-1142.

[9] F. Stein, M. Palm, Int. J . Mater. Res. 98 (2007) 580-588.

[10] P. Tomaszewicz, G. Wallwork, Rev. High-Temp. Mater. 4 (1978) 75-104.

[11] K. Natesan, Mater. Sci. Eng. A258 (1998) 126-134.

[12] M.W. Brumm, H.J. Grabke, Corr. Sci. 33 (1992) 1677-1690.

[13] H.J. Grabke, M.W. Brumm, B. Wagemann, The oxidation of NiAl and FeAl in: H.J. Grabke, M. Schütze (Eds. ), Oxidation of Intermetallics, Wiley-VCH, Weinheim, 1998, pp.79-83.

DOI: 10.1002/9783527612413.ch04

[14] I. Rommerskirchen, B. Eltester, H.J. Grabke, Mater. Corr. 47 (1996) 646-649.

[15] J.H. DeVan, P.F. Tortorelli, Corr. Sci. 35 (1993) 1065-1071.

[16] I. Kim, W.D. Cho, H.J. Kim, J. Mater. Sci. 35 (2000) 4695-4703.

[17] C. Dang Ngoc Chan, C. Huvier, J.F. Dinhut, Intermetallics 9 (2001) 817-826.

DOI: 10.1016/s0966-9795(01)00065-6

[18] Y. Kitajima, S. Hayashi, T. Nishimoto, T. Narita, S. Ukai, Oxid. Met. 73 (2010) 375-388.

[19] P.F. Tortorelli, J.H. DeVan, Mater. Sci. Eng. A153 (1992) 573-577.