Abstract
Reactive diffusion during isothermal annealing was examined in a Ti−Al−Si temary system. When a TiAl/TiSi2 reaction couple was annealed at 1373 K for 200 h, the product phase sequence was observed as TiAl/TiAl2/Ti2Al5/TiAl3/Ti5Si4/TiSi/TiSi2, in which the integrated diffusion coefficient of Ti2Al5 showed the lowest value. A Ti-rich Ti5Si3 phase appeared when an additional Ti flux was provided between the TiAl/TiSi2 reaction. The growth kinetics for both the TiAl/TiSi2 (direction reaction) and TiAl/Ti/TiSi2 reactions (Ti biased reaction) were identified, and a comparison of the morphology of the product phases was provided. The chemical potential variation and mass balance exhibited guidance in predicting the diffusion pathway during isothermal annealing. It appears that a biasing reaction (i.e., controlling component flux) is an effective tool for the phase selection and morphology changes during isothermal annealing.
Similar content being viewed by others
References
C. Kamezawa, M. Hirai, M. Kusaka, M. Iwami, and J. Labis, Appl. Surf. Sci. 237, 607 (2004).
C. Vahlas, I. W. Hall, and I. Haurie, Mater. Sci. Eng. A 259, 269 (2000).
V. E. Chelnokov and A. L. Syrkin, Mater. Sci. Eng. B 46, 248 (1997).
J. H. Perepezko, M. H. Da Silva Bassani, J. S. Park, Edelstein, and R. K. Everett, Mat. Sci. Eng. A 195, 1 (1995).
W. O. Soboyejo, F. Ye, L.-C. Chen, N. Bahtish, D. S. Schwartz, and R. J. Lederich, Acta metall. Mater. 44, 2027 (1996).
J. S. Kirkaldy and D. J. Young, Diffusion in the Condensed State, the Institute of Metals, London (1987).
C. M. Ward-Close, R. Minor, and P. J. Doorbar, Intermetallics 4, 217 (1998).
L. Zhang, G. Qiu, and J. Wu, Scripta metal. et mater. 32, 1683 (1995).
H. Vehoff, S. Reub, W. Vogt, and P. Specht, Structural Intermetallics, (eds. R. Darolia, J. J. Lewandowski, C. T. Liu, P. L. Mantin, D. B. Mirachle and M. V. Nathal), p. 657 (1993).
F. A. Crossley and D. H. Tuner, Trans. of Metall. Soc. of AIME 212, 60 (1958).
O. Schob, H. Nowtny, and F. Benesovsky, Planseeberichte fuer Pulvermetallurgie 10, 65 (1962).
A. Raman and K. Schbert, Zeitschrift fuer Metallkunde 56, 44 (1965).
A. M. Zakharov, I. T. Gul'din, A. A. Arnold, and Yu. A. Matsenko, Russ. Metall. Translated from Izvestina Akademi Nuak SSSR, Metally, 4, 185 (1988).
N. V. Agreeva, Diagrrammy Sostoyaniya Metallicheskikh system (eds. N. V. Agreeva), Vol. 14, p. 121, Viniti, Moscow (1968).
Handbook of Temary Alloy Phase Diagram, (eds. P. Villars, A. Prince, and H. Okamodo), Vol. 4, ASM International, Ohio, p. 4311 (1995).
J. S. Wu, P. A. Beaven, R. Wagner, C. Hartig, and J. Seeger, High-Temperature Ordered Intermetallic Alloys III (eds. C. T. Liu, A. I. Taub, N. S. Stoloff, and C. C. Koch), Vol. 133, p. 761, Pittsburgh, MRS (1989).
J. S. Wu, P. A. Beaven, and R. Wagner, Scripta metall. mat. 24, 207 (1990).
J. L. Murray and A. J. McAlater, Bulletin of Alloy Phase Diagrams 5, p. 74 (1984).
J. L. Murray, Phase Diagram of Binary Titanium Alloys (ed. J. L. Murray), p. 289, Ohio, ASM, (1987).
U. R. Kattner, J. C. Lin, and Y. A. Chang, Metall. Trans. A 12, 2081 (1992).
M. K. Hoffmeyer and J. H. Perepezko, in Light Metals 1991, ed. E. L. Rooy, The Mineral, Metal & Materials Soc., 1990, p 1105.
F. J. J. van Loo and G. D. Rieck, Acta metall. 21, 61 (1973).
F. J. J. van Loo and G. D. Rieck, ibid. 21, 73 (1973).
Hirano and Y. Iijima, Diffusion in Solid: Recent development (eds. M. A. Dyananda and G. E. Murch), p. 141, Publ. of the Metall. Soc., Penn, U.S.A. (1984).
B. V. Cockeram and R. A. Rapp, Metall. Mater. Trans. A 26, 777 (1995).
C. Wagner, Acta metall. 17, 99 (1969).
J. H. Gulpen, A. A. Kodentsov, and F. J. J. van Loo, Z. Metallkd. 86, 8 (1995).
T. C. Munro and B. Gleeson, Metall. Trans. A 27, 3761 (1996).
F. J. J. van Loo and G. F. Bastin, DIMET4-82: Diffusion in Metal and Alloys (eds. F. J. Kedves and D. L. Beke), p. 58, Trans. Tech. Pub., MA (1983).
T. C. Chou and T. G. Neih, J. Mater. Res 5, 1985 (1990).
J. S. Park, J. Cho, S. Yi, and J. H. Perepezko, Met. Mater.-Int. 12, 231 (2006).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Park, J.S., Cho, J., Hur, B.Y. et al. Interface reactions and reaction synthesis of a high temperature composite system. Met. Mater. Int. 13, 1–12 (2007). https://doi.org/10.1007/BF03027816
Issue Date:
DOI: https://doi.org/10.1007/BF03027816