Abstract
Processing, Sintering and Performance of WC-Co-Near-Nano TiC Metal Matrix Composites
Highlights
Metal matrix composites, known as “cemented carbide” and “cermets” in which the base composition consists of WC-Co have been in use since early 1940s and widely applied as cutting and machining tool materials, mining, drilling and tunneling tool bits, forming dies and moulds
It was reported that TiC addition up to 20% increases the hardness of a WC-TiC-Co metal matrix composites [4]
These results suggest that the formation of a (Ti,W)C solid solution improves the high temperature strength [3]
Summary
Known as “cemented carbide” and “cermets” in which the base composition consists of WC-Co have been in use since early 1940s and widely applied as cutting and machining tool materials, mining, drilling and tunneling tool bits, forming dies and moulds. They have superior properties such as high hardness, good fracture toughness and high wear resistance. This study investigated the effect of near-nano-sized TiC additions on microstructural development and densification along with increasing hardness and wear resistance. Samples were mounted on cutting tools to machine a medium carbon grade of steel bars to evaluate the material removal performance
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