In the images shown below, a color map of the Gibbs Triangle is shown on the left and a snapshot of the simulation is shown on the right. To interprete the color map, if the solution is one pure metal, then the color of the material would be either red, gold or blue uniformly. A mixture of the colors indicates a mixture of the phases of material.
In all the simulations, the images of the material are presented in the upper left corner, the time is given in the lower left corner. In the lower right corner of the movie is a composition density hystogram. It displays the amount of material at a given point in the Gibbs Triangle by color coding the density according to the density scale at the far lower right.
In the first simulation, the average mole fraction of the components of the alloy are equal. The spatially homogeneous material spontaneously separates into three distinct phases, represented in red, gold and blue. Then the mixture coarsens.
In the second simulation, the average mole fraction of one of the metals is twice that of the other two metals. Again, two phases appear initially, blue and brown, and then the brown material separates into two additional phases, red and gold.
In the third simulation, the average mole fraction of two of the metals is twice that of the third metal. In this simulation, two phases appear initially, and then a third phases appears after as secondary separation.
D. J. Eyre,
D. J. Eyre,