Relation between the Electrical Resistivity and the First Stages of Precipitation

Abstract

Recent theories make it possible to think that electrical resistivity measurements could provide quantitative informations about the microstructural evolution. These theories are tested by studying the influence of the measuring temperature TM. Our experiments show that when spherical G.P. zones appear in AI-Zn and Al-kg no influence of TM is observed, while the formation of plate-like G.P zones in Al-Cu and Cu-Be alloys induce electrical variations function of TM. This morphology effect is roughly predicted by the theoretical models but supplementary parameters must be taken into account to obtain a quantitative explanation of experimental results.

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Vigier, G., Pelletier, J.M. & Merlin, J. Relation between the Electrical Resistivity and the First Stages of Precipitation. MRS Online Proceedings Library 21, 501–506 (1983). https://doi.org/10.1557/PROC-21-501

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