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Published February 15, 1990 | Published
Journal Article Open

Metastable phase formation in the Zr-Al binary system induced by mechanical alloying


We have studied the sequence of phase transformations induced in the Zr-Al binary system by mechanical alloying of mixed Zr and Al powders. The structure of these materials has been studied by transmission electron microscopy and by x-ray diffraction measurements. Three different metastable phases have been found experimentally with variation of the initial composition xAl: (1) a nanocrystalline supersaturated solid solution of alpha-Zr for xAl<=0.15, (2) an amorphous phase for 0.15

Additional Information

© 1990 American Institute of Physics (Received 23 June 1989; accepted 5 October 1989) The financial support by the U.S. Department of Energy (DOE Contract No. DE-FG03-86ER45242) is gratefully acknowledged. The authors are indebted to C. Garland for the TEM work and E. Hellstern, Y. Seki, and C. E. Krill III for useful discussions.

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