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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 6    December 2002

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Uniform distribution of TiCp in TiCp/Zn-Al composites prepared by XDTM
WANG Xiang(王 香)1, MA Xu-liang(马旭梁)2,
LI Qing-fen(李庆芬)1, ZENG Song-yan(曾松岩)3

1. School of Electromechanical Engineering,
Harbin Engineering University,Harbin 150001, China;
2. School of Material Science and Engineering,
Harbin University of Science and Technology,Harbin 150080, China;
3. School of Material Science and Engineering,
Harbin Institute of Technology,Harbin 150001, China

Abstract:The prefabricated Al/TiC alloy with high TiC particle content was prepared by XDTM process. The uniform distribution process of TiC particles in the stationary zinc melt was studied and analyzed using self-made experimental equipment, and the model of the uniform distribution process was built. The results show that zinc diffuses into the prepared Al/TiC alloy after it is placed in the zinc melt at temperatures below the melting point of aluminum, which leads to the decrease of the liquidus temperature of Al-Zn alloy in the surface layer of Al/TiC alloy. When the liquidus temperature of Al-Zn alloy is equal to or below the temperature of zinc melt, Al-Zn alloy melts and TiC particles drop with it from the Al/TiC alloy and then transfer into the zinc melt and finally distribute uniformly in it.
附件:yw2002-06-29

 

Key words:   prefabricated Al/TiC alloy; zinc alloy; TiC particle; uniform distribution process

ISSN 1672-7029
CN 43-1423/U

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