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In situ x-ray study of the γ- to α-Al2O3 phase transformation during atmospheric pressure oxidation of NiAl(110)

Published online by Cambridge University Press:  03 March 2011

A. Vlad ,
A. Stierle ,
N. Kasper ,
H. Dosch  and
M. Rühle
A. Vlad
Affiliation:
Max-Planck Institut für Metallforschung, D-70569 Stuttgart, Germany
A. Stierle*
Affiliation:
Max-Planck Institut für Metallforschung, D-70569 Stuttgart, Germany
N. Kasper
Affiliation:
Max-Planck Institut für Metallforschung, D-70569 Stuttgart, Germany; and Angströmquelle Karlsruhe (ANKA), FZ Karlsruhe, D-76344 Eggenstein-Leopoldshafen, Germany
H. Dosch
Affiliation:
Max-Planck Institut für Metallforschung, D-70569 Stuttgart, Germany; and Institut für Theoretische und Angewandte Physik, Universität Stuttgart, D-70550 Stuttgart, Germany
M. Rühle
Affiliation:
Max-Planck Institut für Metallforschung, D-70569 Stuttgart, Germany
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

The oxidation in air of NiAl(110) was investigated in the temperature range from 870 °C–1200 °C by in situ x-ray diffraction and transmission electron microscopy. Oxidation at 870 °C and 1 bar oxygen leads to the formation of an epitaxial layer of γ-alumina showing an R30° orientation relationship with respect to the underlying substrate. At oxidation temperatures between 950 °C and 1025 °C, we observed a coexistence of epitaxial γ- and polycrystalline δ-Al2O3. The α-Al2O3 starts to form at 1025 °C and the complete transformation of metastable phases to the stable α-alumina phase takes place at 1100 °C. The fcc-hcp martensitic-like transformation of the initial γ-Al2O3 to epitaxial α-Al2O3 was observed. X-ray diffraction and cross-section transmission electron microscopy proved the existence of a continuous epitaxial α-Al2O3 layer between the substrate and the polycrystalline oxide scale, having a thickness of about 150 nm. The relative orientation relationship between the epitaxial alumina and the underlying substrate was found to be NiAl(110) || α-Al2O3 (0001) and [110] NiAl || [1120].

Keywords

OxidationPhase transformationX-ray diffraction (XRD)
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 12 , December 2006 , pp. 3047 - 3057
Copyright
Copyright © Materials Research Society 2006

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References

REFERENCES

1.Stierle, A., Renner, F., Streitel, R., Dosch, H., Drube, W., Cowie, B.C.: X-ray diffraction study of the ultrathin Al2O3 layer on NiAl(110). Science 303, 1652 (2004).CrossRefGoogle Scholar
2.Kresse, G., Schmid, M., Napetschnig, E., Shishkin, M., Köhler, L., Varga, P.: Structure of the ultrathin aluminium oxide film on NiAl(110). Science 308, 1440 (2005).CrossRefGoogle ScholarPubMed
3.Stierle, A., Renner, F., Streitel, R., Dosch, H.: Observation of bulk forbidden defects during the oxidation of NiAl(110). Phys. Rev. B 64, 165413 (2001).CrossRefGoogle Scholar
4.Stierle, A., Formoso, V., Comin, F., Franchy, R.: Surface x-ray diffraction study on the initial oxidation of NiAl(100). Surf. Sci. 85, 467 (2000).Google Scholar
5.Finnis, M.W., Lozovoi, A.Y., Alavi, A.: The oxidation of NiAl: What can we learn from ab initio calculations? Annu. Rev. Mater. Res. 35, 167 (2005).Google Scholar
6.Padture, N.P., Gell, M., Jordan, E.H.: Thermal barrier coatings for the gas-turbine engine applications. Science 296, 280 (2002).CrossRefGoogle ScholarPubMed
7.Yang, J.C., Schumann, E., Müllejans, H., Rühle, M.: Chemistry and bonding at NiAl/γ-Al2O3 interfaces. J. Phys. D: Appl. Phys. 29, 1716 (1996).CrossRefGoogle Scholar
8.Yang, J.C., Schumann, E., Levin, I., Rühle, M.: Transient oxidation of NiAl. Acta Mater. 46, 2195 (1998).Google Scholar
9.Yang, J.C., Nadarzinski, K., Schumann, E., Rühle, M.: Electron microscopy studies of NiAl/γ-Al2O3 interfaces. Scr. Metallurg. Mater. 33, 1043 (1995).Google Scholar
10.Bobeth, M., Bischoff, E., Schumann, E., Rockstroh, M., Rühle, M.: Aluminium depletion profiles in oxidized NiAl single crystals. Corros. Sci. 37, 657 (1995).Google Scholar
11.Grabke, H.J.: Oxidation of NiAl and FeAl. Intermetallics 7, 1153 (1999).CrossRefGoogle Scholar
12.Brumm, M.W., Grabke, H.J.: The oxidation behaviour of NiAl-I. Phase transformations in the alumina scale during oxidation of NiAl and NiAl-Cr alloys. Corros. Sci. 33, 1677 (1992).CrossRefGoogle Scholar
13.Brumm, M.W., Grabke, H.J.: Oxidation behaviour of NiAl-II. Cavity formation beneath the oxide scale on NiAl of different stoichiometries. Corros. Sci. 34, 547 (1993).CrossRefGoogle Scholar
14.Brumm, M.W., Grabke, H.J., Wagemann, B.: The oxidation of NiAl-III. Internal and intergranular oxidation. Corros. Sci. 36, 37 (1994).CrossRefGoogle Scholar
15.Schumann, E., Sarioglu, C., Blachere, J.R., Pettit, F.S., Meier, G.H.: High-temperature stress measurements during the oxidation of NiAl. Oxidation Metals 53, 259 (2000).Google Scholar
16.Heuer, A.H., Reddy, A., Hovis, D.B., Veal, B., Paulikas, A., Vlad, A., Rühle, M.: The effect of surface orientation on oxidation-induced growth strains in single crystal NiAl: An in situ synchrotron study. Scr. Mater. 54, 1907 (2006).Google Scholar
17.Pies, W., Weiss, A. Numerical data and functional relationships in science and technology. New Series. Group III: Crystal and Solid State Physics, Vol. 7, edited by Hellwege, K-H. and Hellwege, A.M. (Springer-Verlag, Berlin, 1997) p. 56.Google Scholar
18.Wilson, S.J.: Phase transformation and development of microstructure in boehemite-derived transition aluminas. Proc. Br. Ceram. Soc. 28, 281 (1979).Google Scholar
19.Lippens, B.C., De Boer, J.H.: Study of phase transformation during calcination of aluminum hydroxides by selected area diffraction. Acta Crystallogr. 17, 1312 (1964).Google Scholar
20.Levin, I., Brandon, D.: Metastable alumina polymorphs. Crystal structures and transition sequences. J. Am. Ceram. Soc. 81, 1995 (1998).CrossRefGoogle Scholar
21.Lee, W.E., Lagerlof, K.P.D.: Structural and electron diffraction data for sapphire. J. Electron Micr. Technol. 2, 247 (1985).Google Scholar
22.Jayaram, V., Levi, C.G.: The structure of δ-alumina evolved from the melt and the γ → δ transformation. Acta Metall. 37, 569 (1989).Google Scholar
23.Ealet, B., Elyakhloufi, M.H., Gillet, E., Ricci, M.: Electronic and crystallographic structure of γ-alumina thin films. Thin Solid Films 250, 92 (1994).CrossRefGoogle Scholar
24.Mo, S.D., Xu, Y.N., Ching, W.Y.: Electronic and structural properties of bulk γ-Al2O3. J. Am. Ceram. Soc. 80, 1193 (1997).CrossRefGoogle Scholar
25.Paglia, G., Rohl, A.L., Buckley, C.E., Gale, J.D.: Determination of the structure of γ-alumina from interatomic potential and first-principles calculations: The requirement of significant numbers of nonspinel positions to achieve an accurate structural model. Phys. Rev. B 71, 224115 (2005).CrossRefGoogle Scholar
26.Paglia, G., Buckley, C.E., Rohl, A.L., Hunter, B.A., Hart, R.D., Hanna, J.V., Byrne, L.T.: Tetragonal structure model for boehmite-derived γ-alumina. Phys. Rev. B 68, 144110 (2003).Google Scholar
27.Essmann, U., Henes, R., Holzwarth, U., Kloppfer, F., Büchler, E.: Containerless growth and annealing behaviour of NiAl single crystals. Phys. Status Solidi A 160, 487 (1997).Google Scholar
28.Stierle, A., Steinhäuser, A., Rühm, A., Renner, F.U., Weigel, R., Kasper, N., Dosch, H.: Dedicated Max-Planck beamline for the in situ investigation of interfaces and thin Films. Rev. Sci. Instrum. 75, 5302 (2004).Google Scholar
29.Wassermann, G.: Influence of the α-γ-transformation of an irreversible Ni steel onto crystal orientation and tensile strength. Arch. Eisenhüttenwes 126, 647 (1933).Google Scholar
30.Nishiyama, Z.: X-ray investigation of the mechanism of the transformation from face-centered cubic lattice to body-centered cubic. Sci. Rep. Tohoku Univ. 23, 638 (1934).Google Scholar
31.Kurdjumov, G., Sachs, G.: On the mechanism of steel hardening. Z. Phys. 64, 325 (1930).Google Scholar
32.Gotoh, Y., Fukuda, H.: Interfacial energy of the bcc(110)/fcc(111) interface and energy dependence on its size. Surf. Sci. 223, 315 (1989).CrossRefGoogle Scholar
33.Robinson, I.K., Tweet, D.J.: Surface x-ray diffraction. Rep. Prog. Phys. 55, 599 (1992).Google Scholar
34.Touloukian, Y.S., Kirby, R.K., Taylor, R.E., Lee, T.Y.R. Thermophysical properties of matter, in Thermal Expansion: Nonmetallic Solids, Vol. 13, edited by Touloukian, Y.S. and Ho, C.Y. (IFI/Plenum, New York, 1977) p. 176.Google Scholar
35.Hou, P.Y., Paulikas, A.P., Veal, B.W.: Growth strains and stress relaxation in alumina scales during high-temperature oxidation. Sixth Symposium on High-Temperature Corrosion and Protection of Materials, May 16–21, 2004, Lez Embiez, France. Mater. Sci. Forum 461–464, 671 (2004).Google Scholar
36.Strecker, A., Salzberger, U., Mayer, J.: Specimen preparation for transmission electron microscopy: Reliable method for cross-sections and brittle materials. Prakt. Metallogr. 30, 482 (1993).Google Scholar