The effects of elastic stress on the stability of solid-liquid interfaces under a variety of conditions are discussed. In the cases discussed, the nonuniform composition field in the solid, which accompanies either the melting process or the development of a perturbation on the solid-liquid interface during solidification, generates nonhydrostatic stresses in the solid. Such compositionally generated elastic stresses have been shown experimentally to induce a solidifying solid-liquid interface to become unstable. We are in the process of analyzing the effects of these stresses on the conditions for morphological stability of a directionally solidified binary alloy.
Effects of Elastic Stress on the Stability of a Solid-Liquid Interface
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Spencer, B. J., Davis, S. H., McFadden, G. B., and Voorhees, P. W. (May 1, 1990). "Effects of Elastic Stress on the Stability of a Solid-Liquid Interface." ASME. Appl. Mech. Rev. May 1990; 43(5S): S54–S55. https://doi.org/10.1115/1.3120850
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