This article is cited in 2 papers

Phase transitions

Calculation of the solvus temperature of metastable phases in the Al–Mg–Si alloys

A. A. Vasil'ev, A. S. Gruzdev, N. L. Kuz'min

St. Petersburg Polytechnic University

Abstract: A procedure has been proposed for the self-consistent calculation of the solvus temperatures of metastable phase precipitates in Al–Mg–Si alloys and the specific energy of their interface with the aluminum matrix. The procedure is based on the results of experimental studies on the kinetics of formation of these precipitates during decomposition of supersaturated solid solutions of quenched Al–Mg–Si alloys, which were carried out by measuring the Young’s modulus and electrical resistivity. On the basis of the obtained set of solvus temperatures of the $\beta''$-phase, an empirical formula has been proposed for calculating this temperature as a function of the chemical composition of the initial solid solution.

Received: 14.02.2011

 English version: Physics of the Solid State, 2011, 53:9, 1902–1908

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