Author:
Zobač Ondřej,Karpíšková Lenka,Kroupa Aleš
Abstract
AbstractThe phase equilibria of the Al-Ge-Mg ternary phase diagram were experimentally studied at the temperatures of 250, 300, 400 and 450 °C. The ternary phase τ (Al2Ge2Mg) suggested by the earlier structural study was found to be stable at all temperatures studied. Detailed study of the phase equilibria containing the τ (Al2Ge2Mg) phase in the ternary system have been carried out. The average composition of this phase was found to be 36 at.% Al-36 at.% Ge–Mg. In contrast to the previously published binary Ge–Mg phase diagram, the solubility of Mg in Ge was found to be within a few atomic percent. It was also found that GeMg2 intermetallic phase dissolves only small amount of Al but there is significant nonstoichiometricity with respect to the Ge/Mg ratio especially for lower annealing temperatures.
Funder
Institute of Physics of Materials of the Czech Academy of Sciences
Publisher
Springer Science and Business Media LLC
Subject
Materials Chemistry,Metals and Alloys,Condensed Matter Physics
Reference22 articles.
1. F. Ning, Z. Chunming, W. Zunije, W. Hongwei, Z. Xuejian, and C. Tao, Effect of Ge and Mg Additions on the Aging Response Behavior and Mechanical Properties of Al–Si–Cu Alloy, Mater. Sci. Eng. A., 2021, 811, 141024.
2. T. Badaeva, and R. Kuznetsova, Liquidus Surface and Aluminum Solid Solutions in the Al–Mg–Ge System, Metalloved. Term. Obrab. Met., 1958, 3, p 216–230.
3. T.M. Legka, T.M. Mika, Y.V. Milman, N.P. Korzhova, I.V. Voskoboynik, and N.M. Mordovets, Constitution of the Al Corner in the Ternary Al–Ge–Mg Phase Diagram, Powder Metall. Met. Ceram., 2019, 57(11–12), p 716–722.
4. S. Pukas, L. Pylypchak, O. Matselko, P. Demchenko, and R. Gladyshevskii, MgAl2Ge2 – A New Representative of the Structure Type CaAl2Si2, Chem. Met. Alloys, 2012, 5(1/2), p 59–65.
5. I. Ansara, J.P. Bros, and M. Gambino, Thermodynamic Analysis of the Germanium-Based Ternary Systems (Al-Ga-Ge, Al-Ge-Sn, Ga-Ge-Sn), CALPHAD: Comput. Coupl. Phase Diagr. Thermochem., 1979, 3(3), p 225–233.
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