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A Fifth Dynasty Reference to Annealing

Journal of the American Research Center in Egypt, 1974
This heat treatment causes a rearrangement in the crystalline structure of the metal, releasing the strains induced in the metal by hammering, and thus restoring its ductility. Metallographic analysis has revealed that the ancient coppersmiths learned the technique of annealing relatively early in the development of a metallurgical technology.1 Textual
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