· IngenierÃa ·
Si-Young Sung, Bong-Jae Choi and Young-Jig Kim
Sungkyunkwan University, Suwon, Korea
67th World Foundry Congress
The applicability of titanium matrix composites (TMCs) sleeve for Al alloys
die-casting was investigated by interfacial reaction, and wear and
mechanical test. (TiC +TiB) reinforced TMCs were in-situ synthesized and
net-shape formed using a horizontal vacuum induction melting system.
The resistance-ability of (TiC+TiB) reinforced TMCs to molten Al alloys
attack was also examined. Their reactions were carried out in a furnace at
993 K for times varying from 0 to 1200 s. In the case of conventional
sleeve material, H13 steel, there were severe interfacial reactions and
erosion after 60 s. On the other hand, the resistance of TMCs to interfacial
reactions and erosion by molten A380 alloy was significantly increased.
Moreover, the results of wear and mechanical properties of TMCs met all
requirements for Al alloys die-casting shot sleeves.
