Indexed by:期刊论文
Date of Publication:2014-01-01
Journal:INTERMETALLICS
Included Journals:SCIE、EI
Volume:44
Page Number:101-105
ISSN No.:0966-9795
Key Words:Intermetallics, miscellaneous; Phase transformation; Microstructure; Diffraction
Abstract:The transition of primary phases from the crystalline approximant phase to icosahedral quasicrystal phase (I-phase) is observed in the directional solidified Al-3Mn-7Be (at.%) alloy. The structures of I-phase and approximant phases are characterized by SEM, TEM and HRTEM. The addition of Be significantly enhances the formation ability of I-phase, combining with the directional solidification method where the growth rates and temperature gradients can be separately controlled, giving rise to a promising way to prepare quasicrystal-reinforced Al-matrix composite. (C) 2013 Elsevier Ltd. All rights reserved.