Abstract
The influence that a Zr additive (0.3–0.6 wt %) and annealing modes have on the electrical resistance and mechanical properties of cold-rolled sheets obtained from cast ingots on the basis of technical grade A7E aluminum is investigated. It is shown that all zirconium-doped alloys retain deformation strengthening after 1-h annealing at 300°C, in contrast to undoped aluminum. In this case, as the Zr concentration increases, the strength properties improve, which may be associated with the summation of two effects: deformation and dispersion. It is established that, as the Zr content increases, the resistance of cold-rolled sheets substantially increases; however, after annealing, this characteristic is first of all determined by the zirconium concentration in the aluminum-based solid solution and depends on the parameters of heat treatment.
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Original Russian Text © N.A. Belov, A.N. Alabin, A.Yu. Prokhorov, 2009, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2009, No. 4, pp. 42–47.
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Belov, N.A., Alabin, A.N. & Prokhorov, A.Y. The influence that a zirconium additive has on the strength and electrical resistance of cold-rolled aluminum sheets. Russ. J. Non-ferrous Metals 50, 357–362 (2009). https://doi.org/10.3103/S1067821209040099
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DOI: https://doi.org/10.3103/S1067821209040099