Discontinuous precipitation in CuCo alloys

This contribution deals with the cooperative discontinuous growth of coherent rod-like Co particles from supersaturated copper-rich CuCo solid solutions, and the subsequent spheroidization of these rods into columnar arrays. Electron microscopy has been used to determine the precipitate morphology, size, and distribution. A model is presented for the discontinuous reaction in which a local equilibrium is assumed between the product rods and a...