About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Advancing the Frontier of Powder Materials Processing and Sintering: A MPMD/EPD Symposium in Honor of Eugene Olevsky
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| Presentation Title |
Mechanical Properties of Ultra-Fine WC-Co Materials by a Spark Plasma Sintering Process
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| Author(s) |
Minhyeok Yang, Yu gyun Park, Yeong jung Kim, Hyun kuk Park |
| On-Site Speaker (Planned) |
Hyun kuk Park |
| Abstract Scope |
Tungsten carbide–cobalt (WC-Co) hard materials are widely used in applications such as welding tools, machining, cutting, and drilling due to their excellent hardness and toughness. These materials typically consist of a hard WC phase embedded in a ductile Co binder. In this study, WC and Co powders were refined via high-energy ball milling, resulting in average particle sizes of 189 nm and 33 nm, respectively. The milled powders were then consolidated using spark plasma sintering (SPS) at 1200 °C and 60 MPa. The microstructure of the sintered WC-6 wt.% Co nanocomposites was characterized using X-ray diffraction, field-emission scanning electron microscopy, and grain size analysis. After sintering, the WC and Co grain sizes were measured to be 271 nm and 20.6 nm, respectively. Mechanical properties were evaluated by measuring Vickers hardness and fracture toughness under a 20 kgf load, yielding values of 1755.81 kg/mm² and 25.62 MPa·mıᐟ², respectively. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, Copper / Nickel / Cobalt, Composites |