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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing of Ceramic-based Materials: Process Development, Materials, Process Optimization and Applications
Presentation Title Manufacturing, Microstructure and Compressive Mechanical Properties of WC-12Co Cermet Material Fabricated by Direct Energy Deposition
Author(s) Kyoung-Wook Kim, Gi-Su Ham, Kee-Ahn Lee, Sun-Hong Park, Jung-Wook Cho
On-Site Speaker (Planned) Kyoung-Wook Kim
Abstract Scope WC-Co cermet material is difficult to cast due to its high melting point, and is not so easy to work to a complex shaped part. Additive manufacturing, which is capable of achieving near-net shapes, has been gaining a lot of attention recently. WC-12Co (wt.%) bulk material was fabricated using direct-energy deposition (DED), which is one of the additive manufacturing processes, and microstructure and compressive mechanical properties of WC-12Co materials were investigated. The DED built WC-12Co mainly composed of WC and Co, and minor Co3W3C and W2C phases were also detected. The porosity of WC-12Co materials was measured as 13.2%. The maximum compressive strength of DED built WC-12Co was obtained as 1.9GPa. Micro cracks were initiated at the microstructural defects (pore etc.) and propagated along the WC phase boundaries. Based on these results, the deformation mechanism of the WC-12Co fabricated by DED was also discussed in connection with microstructure.
Proceedings Inclusion? Undecided

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing of 8 mol % Yttria Stabilized Zirconia Ceramics
Additive Manufacturing of Bi-continuous Piezocomposites based on Triply Periodic Micro-skeleton for Tailorable Hydrostatic Performance
Direct Ink Writing of Chopped Fiber Ultra-High Temperature Ceramic Matrix Composites (UHTCMCs)
Effects of Printing Parameters on Density And Mechanical Properties of Binder Jet 3D Printed WC-Co
Effects of Printing Parameters on Microstructure and Mechanical Properties of Binder Jet 3D Printed WC-Co
Fast Fabrication of Bioceramics Parts by Combining Stereolithography and Microwave Sintering
Fused Filament Fabrication of Metal Matrix Composites (MMC)
Geometry Limitations of Indirect Laser Sintering of Alumina
Hybrid Additive Manufacturing Technology Applied to Si3N4 Freeform Components Fabrication
Initiation of Selective Laser Flash Sintering in Yttria-Stabilized Zirconia
Laser-based Additive Manufacturing of Bi-metallic & Tri-metallic Oxide Layers
Manufacturing, Microstructure and Compressive Mechanical Properties of WC-12Co Cermet Material Fabricated by Direct Energy Deposition
Process Parameter Variations and 3D Printing of Ceria Ceramics
Sintering, Characterization and Evaluation of Ceramics Recycled from Waste Soda-lime-Silica Glass and White Corn Cob Ash
Temporary Coating for Binder Jet 3D Printed Tungsten Carbide-Cobalt Parts
Toughening of SiC-based Ceramics by Chopped Fiber via Selective Laser Sintering: Preliminary Thinking and Attempts
Ultra-fast, Selective Laser Sintering during Additive Manufacturing of Alumina
Uncertainty Quantification in Additive Manufacturing of Piezocomposites through Physics-informed Data-driven Modelling

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