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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 4    December 1995

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QUASICRYSTALLINE AND CRYSTALLINE PHASES IN RAPIDLY SOLIDIFIED Al33Cu10Fe24Ti33 ALLOY POWDERS
Wu Lijun1,2; Chen Zhenhua3; Hu Wangyu1; Huang Qizhong3; Zhao Lihua1

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

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

ISSN 1672-7029
CN 43-1423/U

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