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Metastable solvus curves in Al-Zn alloys

Part 2 The transition phase

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Abstract

Variation of the lattice parameter with zinc content in the Al-Zn system has been investigated using Al-4 to 30 at % Zn alloys. These data, along with earlier data have been fitted into a curve using the least square method. Lattice constant data on the transition (R) phase observed in Al-30 at% Zn alloy have been obtained. From these and the earlier work, zinc content in the R phase and the matrix have been evaluated and new metastable solvus curves for the R phase has been arrived at. On the basis of this, a critical analysis of all the data so far available on the solvus curves has been made. Finally, different modes of precipitation and reversion phenomenon in the Al-Zn system observed hitherto has been discussed in the light of the new metastable solvus curves.

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Authors and Affiliations

  1. Materials Glass and Ceramics Division, Regional Research Laboratory (CSIR), Trivandrum 695 019, Kerala, India

    K. G. Satyanarayana

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  1. K. G. Satyanarayana
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Satyanarayana, K.G. Metastable solvus curves in Al-Zn alloys. J Mater Sci 16, 1240–1248 (1981). https://doi.org/10.1007/BF01033838

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