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Development of Microstructure in Rapidly Solidified Intermetallics

  • H. Assadi (a1) and A. L. Greer (a1)

Abstract

The solid-state transformations following rapid solidification of intermetallics can include ordering of primary disordered phase(s), resulting in anti-phase domain boundaries (APDBs). The present work focuses on the Ni-Al system. A qualitative model for solid-state ordering, originally developed by Chen and Khachaturyan [1] has been modified to simulate the APD formation during solidification of a disordered phase. An interpretation is suggested for the formation of various APD patterns observed in sequentially ordered Ni3Al.

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6 Assadi, H., Barth, M., Greer, A. L. and Herlach, D. M., in Proc. 2nd Int. Conf. on Solidification and Gravity, Miskolc, Hungary, April 25-28 (1995), to be pub. by Trans Tech.
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Development of Microstructure in Rapidly Solidified Intermetallics

  • H. Assadi (a1) and A. L. Greer (a1)

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