Abstract
Spinodal decomposition was studied by X-ray diffraction in Al/Zn alloys over the range of 30 to 60 wt % zinc. The spinodal structures were extremely anisotropic with respect to X-rays and were found to form during the quench. The periodicity of the structure was determined for a number of ageing treatments.
The spinodal structure was very stable at room temperature in the dilute alloys but decomposed rapidly in both Al/50% Zn and in Al/60% Zn. The stability varied inversely with zinc content. Breakdown of the modulated structure occurred by zinc precipitation.
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References
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Douglass, D.L. Spinodal decomposition in Al/Zn alloys. J Mater Sci 4, 130–137 (1969). https://doi.org/10.1007/BF00550654
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DOI: https://doi.org/10.1007/BF00550654