The main purpose of this study was to evaluate the endurance against Al alloy melts and wear
resistance of an in-situ synthesized titanium matrix composite (TMC) sleeve for aluminum alloy die-casting.
The conventional die-casting shot sleeve material was STD61 tool steel. TMCs have great thermal stability,wear and oxidation resistance. The in-situ reaction between Ti and B4C leads to two kinds of
thermodynamically stable reinforcements, such as TiBw and TiCp. To evaluate the feasibility of the
application to a TMCs diecasting shot sleeve, the interfacial reaction behavior was examined between Al alloys melts with TMCs and STD61 tool steel. The pin-on-disk type dry sliding wear test was also investigated for TMCs and STD61 tool steel.