SOLIDIFICATION MECHANISM OF Al/TiC INTRAGRANULAR COMPOSITES FABRICATED BY CONTACT REACTION METHOD

摘要

The behaviour of the particles in solidification inter face front was studies,and the equctionof the critical inter face velocity which related to the supercooling and the volune fraction of particles in the melt was obtained.By the mean time,the two solidi fication mechanisms ofaluminium matrix intragranular composites was put forward.