Detailed experimental characterization of a laser‐clad metal matrix composite (MMC) consisting hard tungsten carbide particles embedded in comparatively soft nickel‐based is provided. Special focus the investigations placed on relationship between microstructure as‐deposited reinforcing and their hardness. Therefore, thermally induced dissolution carbides caused by laser deposition (LMD) proces...

In this article, a new WC- Al2O3 composite tool material is successfully fabricated by vacuum hot-pressed sintering process with high hardness and flexural strength as well fracture toughness, which solved the problem of mutual restriction between toughness existing WC-Co materials. By adding Al2O3, WC-based cemented carbide significantly improved, are also improved. The mode WC-Al2O3 composite...

Hardmetals are widely used as cutting, machining, and drilling tools for rocks due to their excellent properties of hardness, fracture toughness, wear resistance over a wide temperature range. This study proposed evaluate the toughness WC–10% Co carbide, sintered via spark plasma sintering—SPS, through Vickers indentation measures, using modification Palmqvist test, which is assess cemented car...

The cracking and delamination of TiN-coated hardmetals (WC-Co cemented carbides) when subjected to Brale indentation were studied. Experimental variables were substrate microstructure related to low (6%wt. Co) and medium (13%wt. Co) binder content, and surface finishes associated with grinding and polishing stages before film deposition. Brale indentation tests were conducted on both coated and...