Uniform distribution of TiCp in TiCp/Zn-Al composites prepared by XDTM
(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)
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
附件:yw2002-06-29
Key words: prefabricated Al/TiC alloy; zinc alloy; TiC particle; uniform distribution process