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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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PREPARATION AND CRYSTALLINE MICROSTRUCTURE OF RAPIDLY SOLIDIFIED NEW AMORPHOUS Al-Fe-V-Si-Mm ALLOY
Wang Jianqiang; Gu Tao; Zeng Meiguang; Chen Xiufang; Zhang Baojing

Department of Materials Science; Institute of Science; Northeastern University; Shenyang 110006

Abstract:A new metallic glass of Al-riched Al-Fe-V-Si-Mm alloy was firstly produced by liquid quenching.The microstructural features of as-cast and crystallization were studied by DSC,XRD.TEM and EDX.During the process of annealing crystallization this amorphous alloy went through three stages with the precipitation ofα-Al particles,Al11(La,Ce)3 particles and i-phase,finally the i'-phase.It was also observed that the size of four kinds of phases was less than 100 nm at 718 K for 1h.The dominant factors for the formation of amorphous Al-Fe-V-Si-Mm and good thermal stability are the strong attractive interaction between Al and Mm and size differentia effect.

 

Key words: rapid solidification Al-Fe-V-Si-Mm alloy amorphous phase annealed crystallization

ISSN 1672-7029
CN 43-1423/U

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