METAL MATERIAL FOR FOUNDRY MACHINE PART, MEMBER FOR CONTACT WITH MOLTEN ALUMINUM, AND PROCESS FOR PRODUCING THE SAME

摘要

A Ni alloy layer is formed on a surface of base material of steel for direct contact with molten aluminum, and titanium carbide (TiC) in the form of particles is bonded to the surface of the Ni alloy layer. Accordingly, markedly superior erosion resistance can be exhibited without relying on conventional means, such as ceramic coating through PVD or CVD processing. ® KIPO & WIPO 2007