Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-22T21:46:22.176Z Has data issue: false hasContentIssue false
  • English
  • Français

Al2O3 scale development on iron aluminides

Published online by Cambridge University Press:  01 June 2006

X.F. Zhang ,
K. Thaidigsmann ,
J. Ager  and
P.Y. Hou
X.F. Zhang
Affiliation:
Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
K. Thaidigsmann
Affiliation:
Department of Material Sciences and Surface Technology, University for Applied Science, 73430 Aalen, Germany
J. Ager
Affiliation:
Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
P.Y. Hou*
Affiliation:
Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

The structure and phase of the Al2O3 scale that forms on an Fe3Al-based alloy Fe-28Al-5Cr (at.%) was investigated by transmission electron microscopy and photoluminescence spectroscopy. Oxidation was performed at 900 °C and 1000 °C for up to 190 min. Transmission electron microscopy revealed that single-layer scales were formed after short oxidation times. Electron diffraction was used to show that the scales are composed of nanoscale crystallites of the θ, γ, and α phases of alumina. Band-like structure was observed extending along three 120°-separated directions within the surface plane. Textured θ and γ grains were the main components of the bands, whereas mixed α and transient phases were found between the bands. Extended oxidation produced a double-layered scale structure with a continuous α layer at the scale/alloy interface and a γ/θ layer at the gas surface. The mechanism for the formation of Al2O3 scales on iron aluminide alloys is discussed and compared with that for nickel aluminide alloys.

Keywords

AlloysOxidationMicrostructure
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 6 , June 2006 , pp. 1409 - 1419
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Brady, M.P., Pint, B.A., Tortorelli, P.F., Wright, I.G., Hanrahan, R.J. Jr. High temperature oxidation and corrosion of intermetallics, in Corrosion and Environmental Degradation, Vol. 19, edited by Schutze, M. (Materials Science and Technology, Wiley-VCH, New York, 2000) pp. 232–325.Google Scholar
2.Doychak, J., Smialek, J.L., Mitchell, T.E.: Transient oxidation of single-crystal β-NiAl. Metall. Trans. A 20A, 499 (1989).CrossRefGoogle Scholar
3.Rybicki, G.C., Smialek, J.L.: Effect of the θ−α-Al2O3 transformation on the oxidation behavior of β-NiAl + Zr. Oxid. Metals 31, 275 (1989).CrossRefGoogle Scholar
4.Yang, J.C., Nadarzinski, K., Schumann, E., Rühle, M.: Electron microscopy studies of NiAl/γ-Al2O3 interface. Scripta Met. 33, 1043 (1995).CrossRefGoogle Scholar
5.Yang, J.C., Schumann, E., Levin, I., Rühle, M.: Transient oxidation of NiAl. Acta Metall. 46, 2195 (1998).Google Scholar
6.Smialek, J.L., Doychak, J., Gaydosh, D.J.: Oxidation behavior of FeAl + Hf, Zr, B. Oxid. Metals 34, 259 (1990).CrossRefGoogle Scholar
7.Kuenzly, J.D., Douglass, D.L.: Oxidation mechanism of Ni3Al containing yttrium. Oxid. Metals 8, 139 (1974).CrossRefGoogle Scholar
8.Doychak, J., Rühle, M.: TEM studies of oxidized NiAl and Ni3Al cross sections. Oxid. Metals 31, 431 (1989).Google Scholar
9.Schumann, E., Rühle, M.: Microstructural observation on the oxidation of γ′-Ni3Al at high oxygen partial pressure. Acta Metall. Mater. 42, 1481 (1994).CrossRefGoogle Scholar
10.Alexander, K.B., Prussner, K., Hou, P.Y., Tortorelli, P.F. Microstructure of alumina scales and coatings on zirconium-containing iron aluminide alloys, in Microscopy of Oxidation 3, edited by Newcomb, S.B. and Little, J.A. (The Institute of Metals, London, UK, 1997), pp. 246–264.Google Scholar
11.Renusch, D., Grimsditch, M., Koshelev, I., Veal, B.W., Hou, P.Y.: Strain determination in thermally grown alumina scales using fluorescence spectroscopy. Oxid. Metals 48, 471 (1997).Google Scholar
12.Hagel, W.C.: The oxidation of iron, nickel and cobalt-based alloys containing aluminum. Corrosion 21, 316 (1965).CrossRefGoogle Scholar
13.Hou, P.Y.: Sulfur segregation to growing Al2O3/alloy interfaces. J. Mater. Sci. Lett. 19, 577 (2000).Google Scholar
14.McKamey, C.G., Mazdiasz, P.J., Goodwin, G.M., Zacharia, T.: Effects of alloying additions on the microstructures, mechanical properties and weldability of Fe3Al-based alloys. Mater. Sci. Eng. A A174,59 (1994).Google Scholar
15.Tinker, M., Labun, P.A.: Transmission electron microscopy of transverse sections through oxide scales on metals. Oxid. Metals 18, 27 (1982).CrossRefGoogle Scholar
16.Yang, Z.G., Hou, P.Y.: Wrinkling behavior of alumina scale formed during isothermal oxidation of FeAl binary alloys. Mater. Sci. Eng. A 391, 1 (2005).Google Scholar
17.Ma, Q., Shaw, M.C., He, M.Y., Dalgleish, B.J., Clarke, D.R., Evans, A.G.: Stress redistribution in ceramic/metal multilayers containing cracks. Acta Metall. Mater. 43(6), 2137 (1995).Google Scholar
18.Qingzhe, D.M., Lipkin, W., Clarke, D.R.: Luminescence characterization of chromium-containing θ-alumina. J. Am. Ceram. Soc. 81, 3345 (1998).Google Scholar
19.Hou, P.Y., Paulikas, A.P., Veal, B.W.: Growth strains and stress relaxation in alumina scales during high temperature oxidation. Mater. Sci. Forum 461–464, 671 (2004).Google Scholar
20.Sohn, Y.H., Dayananda, M.A.: Interdiffusion, intrinsic diffusion and vacancy wind effect in Fe-Al alloys at 1000 °C. Scripta Mater. 40, 79 (1999).CrossRefGoogle Scholar
21.Ikeda, T., Almazouzi, A., Numakura, H., Koiwal, M., Sprengel, W., Nakajima, H.: Single-phase interdiffusion in Ni3Al. Acta Mater. 46, 5369 (1998).Google Scholar
22.Hou, P.Y., Zhang, X.F., Cannon, R.M.: Impurity distribution in Al2O3 formed on an FeCrAl alloy. Scripta Mater. 51, 45 (2004).Google Scholar
23.Smialek, J.L., Gibala, R.: Structure of transient oxides formed on NiCrAl alloys. Metall. Trans. A 14A, 2143 (1983).CrossRefGoogle Scholar
24.McCarty, K.F.: Imaging the crystallization and growth of oxide domains on the NiAl(110) surface. Surf. Sci. 474, L165 (2001).CrossRefGoogle Scholar
25.Fremy, N., Maurice, V., Marcus, P.: Initial stages of growth of alumina on NiAl(001) at 1025 K. J. Am. Ceram. Soc. 86, 669 (2003).CrossRefGoogle Scholar
26.Pierce, J.P., McCarty, K.F.: Self-assembly and dynamics of oxide nanorods on NiAl(110). Phys. Rev. B 71, 125428 (2005).Google Scholar
27.Lipkin, D.M., Schaffer, H., Adar, F., Clarke, D.R.: Lateral growth kinetics of α-alumina accompanying the formation of a protective scale on (111) NiAl during oxidation at 1100 °C. Appl. Phys. Lett. 70, 2550 (1997).Google Scholar
28.Tolpygo, V.K., Clarke, D.R.: Microstructural study of the θ-α transformation in alumina scales. Mater. High Temp. 17, 59 (2000).CrossRefGoogle Scholar
29.Hou, P.Y., Paulikas, A.P. and Veal, B.W.: Stress development and relaxation in Al2O3 during early stage oxidation of β-NiAl. Mater. High Temp. (2006, in press).Google Scholar
30.Andoh, A., Taniguchi, S., Shibata, T.: TEM observation of phase transformations of alumina scales formed on Al-deposited Fe-Cr-Al foils. Mater. Sci. Forum 369–372, 303 (2001).CrossRefGoogle Scholar
31.Klumpes, R., Maree, C.H.M., Schramm, E., de Wit, J.H.W.: The influence of chromium on the oxidation of β-NiAl at 1000 °C. Mater. Corrosion-Werkstoffe Korrosion 47, 619 (1996).Google Scholar