Conclusions
-
1.
The solidification of cast alloys of the Al\t-Be\t-Mg\t-Zn system was investigated in the region of primary solidification of (Be) phase and the precipitation of binary eutectic (Al)+(Be).
-
2.
Phase diagrams were plotted for the cut with a constant concentration of beryllium (20 wt. %) and aluminum (70 wt. %).
Solidification begins at temperatures around 1150°C and is completed at 435–480°C, depending on the relative amounts of magnesium and zinc. A broad region was found (5–8 wt. % Zn) in which the cast alloys consist of three phases: (Be), (Al), and T phase of the Al−Mg−Zn system.
-
3.
The presence of ternary eutectic in the alloys is evidently due to insufficiently slow solidification of phases, particularly the solid solution based on aluminum.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
I. N. Fridlyander, "Light alloys after 50 years," Metal. i Term. Obrabotka Metal., No. 11, 31–36 (1967).
N. D. Nagorskaya et al., "Phase diagrams of sections of the Al−Be−Mg system," Izv. Akad. Nauk SSSR, Metally, No. 5, 137–147 (1966).
V. I. Mikheeva, Chemical Nature of High-Strength Al−Mg−Zn Alloys [in Russian], Izd. AN SSSR, Moscow (1947), pp. 44–61.
W. Köster and W. Dullenkopf, Z. Metallk.,28, No. 12, 363–368 (1963).
J. Clark, TASM,53, 295–306 (1961).
Additional information
Moscow State University. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 9, pp. 72–74, September, 1973.
Rights and permissions
About this article
Cite this article
Nagorskaya, N.D., Novoselova, A.V., Fridlyander, I.N. et al. Solidification of quaternary Al−Be−Mg−Zn alloys. Met Sci Heat Treat 15, 812–814 (1973). https://doi.org/10.1007/BF00656302
Issue Date:
DOI: https://doi.org/10.1007/BF00656302