Abstract
Dissolution of metallic plate, cylinder and sphere into contacting liquid metal was studied through simulation using Direct Finite Difference Method. One-dimensional displacement of solid-liquid interface due to dissolution follows parabolic law, the rate of which is formulated in terms of relative solubility of liquid metal. Relationship between dissolution rate and the relative solubility obtained was found to be in complete agreement with that of Danckwerts’ equation. The time for complete dissolution of metallic solid is shown by the melt down index, which depends on shape and initial size of the solid, and on diffusion coefficient and relative solubility of contacting liquid metal.
