Features of the formation of a quasi-crystalline phase in Al-Cu-Fe cast alloys.

Autor: Chugunov, D., Osipov, A., Kalmykov, K., Meshkov, L.
Zdroj: Moscow University Chemistry Bulletin; Mar2015, Vol. 70 Issue 2, p80-86, 7p
Abstrakt: The phase transformations in Al-Cu-Fe cast alloys in the region of existence of the ico-phase are characterized via X-ray diffraction, X-ray fluorescence, and scanning electron microscopy. It is established that the production of multiphase structures consists of a mixture of quasi-crystalline and approximant phases, the amount and morphology of which depend on both the shield composition and crystallization mode. The optimum annealing time for the cast samples at 800°C has been determined, resulting in complete transformation of approximant crystalline phases into a quasi-crystalline ico-phase. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
Externí odkaz: