QUASICRYSTALLINE AND CRYSTALLINE PHASES IN RAPIDLY SOLIDIFIED Al33Cu10Fe24Ti33 ALLOY POWDERS
(1.Material Research and Test Center; Hunan University; Changsha 410082；
2.Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015；
3. Research Institute of Non-Equilibrium Materials Science and Engineering，Center South University of Technology，Changsha 410083)
2.Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Chinese Academy of Sciences; Shenyang 110015；
3. Research Institute of Non-Equilibrium Materials Science and Engineering，Center South University of Technology，Changsha 410083)
Abstract: The structure of Al33Cu10Fe24Ti33 alloy powders has been studied by transmission electron microscope(TEM).In the specimens heated at 800℃,decagonal quasicrystalline phase(T phase) and Al solid solution polycrystals have been found.Moreover,two cubic phases and one hexagonal phase have also been found and determined.One cubic phase(F) belongs to FCC lattice with a=1.15 nm,the other cubic phase(B) belongs to BCC lattice with a=0.86nm.The hexagonal phase(H) belongs to hexagonal lattice with a=0.74 nm and c=0.48 nm.
Key words: quasicrystal crystalline phases Al33Cu10Fe24Ti33 alloy rapidly solidified powders