Effect of Grain Growth Inhibitors VC/Cr₃C₂ on WC-ZrO₂-Ni Composite Mechanics

Abstract:

The effect of VC and Cr₃C₂ grain growth inhibitors on mechanical properties of the WC-Ni-ZrO₂ composites are studied in the present work. The microstructural features responsible for a change in mechanical properties are analysed. Addition of both VC and Cr₃C₂ results in increase in hardness of the WC-based system, but consequently in decrease in fracture toughness. The transformation toughening effect of ZrO₂ is not effective for the loading conditions applied in this study.

• Periodical: Key Engineering Materials (Volume 604)
• Pages: 106-109
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.604.106
• Online since: March 2014
• Authors: Der Liang Yung*, Min Jie Dong, Irina Hussainova
• Keywords: Fracture Toughness, Grain Growth Inhibitor, Hardness, Transverse Rupture Strength, WC-Ni Cemented Carbide, Zirconia Transformation Toughening

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