Microstructure of In Situ Tic-Mo-Ni And Tic-WC-Mo-Ni Cermets Synthesized by Reactive Hot-Pressing Sintering

Zong De Liu; Li Ping Zhao; Yan Rong Bao; Bin Li

doi:10.4028/www.scientific.net/AMR.194-196.1785

Paper Titles

Microstructure and Mechanical Properties of High-Strength Graphite Particles Coated TiO₂ Film Embedded in SiC Composite
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Mechanical and Tribological Properties of Phenol Formaldehyde Resin Reinforced with Nano-Silica
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Finite Element Analysis and Experimental Investigation of Carbon Fiber Composite Circular Tube
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Research on the Flexural Behaviour of Reinforced Concrete Beams Strengthened with CFRP
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Microstructure of In Situ Tic-Mo-Ni And Tic-WC-Mo-Ni Cermets Synthesized by Reactive Hot-Pressing Sintering
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Microstructure Characterisation and Mechanical Behaviour of 2D C/SiC-C Composite with SiC/PyC Multilayer Matrix
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Dynamic Effective Properties of Particle-Reinforced Composites with Imperfect Interface
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Microstructure and Mechanical Properties of In Situ WC Particles Reinforced Iron-Based Composite Coating
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Preparation and Characterisation of TiO₂-Supported on the Surface of SiO₂
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Microstructure of In Situ Tic-Mo-Ni And Tic-WC-Mo-Ni Cermets Synthesized by Reactive Hot-Pressing Sintering

Abstract:

TiC-Mo-Ni and TiC-WC-Mo-Ni cermet blocks have been obtained in situ by reactive hot pressing sintering. The phase structure and microstructure of the two cermets were compared to investigate the effect of the addition of WC. The results show that the chemical reactions between Ti, Mo and C in TiC-Mo-Ni system are relatively complete. However, there is a small amount of unreacted C powder in TiC-WC-Mo-Ni system, which is associated with the reaction between Ti and WC. The in-situ carbide grains are very fine with the size range of 0.5-2µm. The boundary morphology between the carbide grains and the binder phase changes from an angular shape to an almost rounded shape with the addition of WC.