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Microstructure And Ternary Phases In Al-rich Al-Y-Ni Alloys.

  • A. L. Vasiliev (a1), M. Aindow (a1), M. J. Blackburn (a1) and T. J. Watson (a2)
Abstract
ABSTRACT

The results of a transmission electron microscopy study on the crystal structures and morphologies exhibited by each of the phases in a set of four Al-rich Al-Y-Ni alloys which contain 1.7–4.5 at. % Y and 3.5–10.1 at. % Ni are presented. It is shown that each alloy contains fcc-Al, a binary Al3Ni or Al3Y phase (depending on alloy composition), and a ternary phase. The same ternary phase was found in each alloy and this was found to correspond to a new phase Al19Ni5Y3 (Cmcm, a=0.4025 nm, b=0.799 nm and c= 2.689 nm, Al19Ni5Gd3 structure type). In many cases, the ternary particles also contain embedded slabs of the equilibrium Al23Ni6Y4 phase. This phase mixture did not decompose even after extended annealing.

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1. He Y., Poon S.J. and Shiflet G.J. Science 241, 1640 (1988).
2. Inoue A., Ohtera K., Tsai A.P. and Masumoto T. Jap. J. Appl. Phys. 27, L 280, L 479 (1988).
3. Raggio R., Borzone G., Ferro R. Intermetallics 8, 247 (2000).
4. Rykhal R.M., Zarechnyuk O.S. Dopov. Acad. Nauk Ukr. SSR Ser. A 4, 375 (1977).
5. Gladyshevskii R.E. and Parthé E. Acta Cryst. C 48, 232 (1992).
6. Gladyshevskii R.E., Cenzual K., Flack H.D. and Parthé E. Acta Cryst. B 49 468 (1999).
7. Rykhal R.M., Zarechnyuk O.S., Yarmolyuk Y.P. Sov. Phys. Crystallogr. 17, 453 (1972).
8. Gladyshevskii R.E. and Parthé E. Acta Cryst. C 48, 229 (1992).
9. Latuch J., Matyja H., Fadeeva V.I. Mater. Sci. Eng. A179/A180, 506 (1994).
10. Kulik T. and Latuch J. J.Metastable Nanocryst. Mat. 10, 194 (2001).
11. Stadelmann P.A. Ultramicrocopy 21, 131 (1987).
12. Kilaas R. Microbeam Analysis, 22 nd, 293 (1987).
13. Vasiliev A.L., Aindow M., Blackburn M.J. and Watson T.J. (To be published).
14. Gladyshevskii R.E., Cenzual K., and Parthé E., J. Solid State Chem, 100, 9 (1992).
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MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
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