Effect of Mo 2 C addition on the microstructure and fracture behavior of (W,Ti)C-based cemented carbides
Source abstract
Abstract
Abstract The effect of Mo 2 C addition on the microstructure and fracture behavior of (W,Ti)C-based cemented carbides was systemically studied in this work. A weak core/rim structure existed in solid solution cemented carbides. The grain size of cemented carbides decreased with the increase of Mo 2 C content while excessive Mo 2 C addition would lead to the inhomogeneity of the grains. As the Mo 2 C content increased, the wettability between (W,Ti)C phase and Co phase was improved, and the porosity of cemented carbides decreased. The mechanical properties were improved with proper Mo 2 C addition, but more than 15 wt% Mo 2 C decreased the transverse rupture strength and fracture toughness. Results also revealed that less transgranular fracture and more intergranular fracture were observed with the increase of Mo 2 C addition. The optimized Mo 2 C content was 15 wt% for (W,Ti)C– x Mo 2 C–15Co cemented carbides.
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Research context
OpenAlex topics: Advanced materials and composites · Metal and Thin Film Mechanics · Tunneling and Rock Mechanics
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References (32)
Show source-provided references
1. APT analysis of WC–Co based cemented carbides10.1016/j.ultramic.2011.01.033 ↗
2. WC–Co enjoys proud history and bright future10.1016/S0026-0657(97)84592-4 ↗
3. Consolidation of ultrafine WC and WC–Co hard materials by pulsed current activated sintering and its mechanical properties10.1016/j.ijrmhm.2005.11.004 ↗
4. The study of ternary carbides formation during SPS consolidation process in the WC–Co–steel system10.1016/j.ijrmhm.2009.05.001 ↗
5. Materials science of cemented carbides – an overview
6. A comparison of the microstructures of WC–VC–TiC–Co and WC–VC–Co cemented carbides10.1016/j.ijrmhm.2006.05.001 ↗
7. Effect of WC/TiC grain size ratio on microstructure and mechanical properties of WC–TiC–Co cemented carbides10.1016/j.ijrmhm.2005.04.018 ↗
8. Thermomechanical properties of TiC particle-reinforced tungsten composites for high temperature applications10.1016/S0263-4368(02)00105-1 ↗
9. Consolidation of binderless WC–TiC by high frequency induction heating sintering10.1016/j.ijrmhm.2007.01.006 ↗
10. Microstructure and mechanical properties of (Ti, W, Ta) C–xMo–Ni cermets10.1016/j.ijrmhm.2011.09.006 ↗
11. Surfaces, grain boundaries and interfaces
12. Synthesis, microstructure, and mechanical properties of WC–TiC–Co ceramic composites10.1016/j.jeurceramsoc.2011.06.013 ↗
13. Effect of liquid phase composition on the microstructure and properties of (W,Ti)C cemented carbide cutting tools10.1016/j.ijrmhm.2008.04.003 ↗
14. Effect of Mo addition on microstructure and mechanical properties of (Ti,W)C solid solution based cermets10.1016/j.ijrmhm.2013.11.004 ↗
15. Microstructure of (W,Ti)C–Co system containing platelet WC10.1016/j.msea.2010.06.056 ↗
16. Toughened ultra-fine (Ti, W)(CN)–Ni cermets10.1016/j.scriptamat.2004.09.017 ↗
17. Effect of (Ti, W, Mo, V)(C, N) powder size on microstructure and properties of (Ti, W, Mo, V)(C, N)-based cermets10.1016/j.ijrmhm.2012.03.013 ↗
18. Effect of the complete solid-solution phase on the microstructure of Ti(CN)-based cermet10.1016/j.ijrmhm.2008.07.012 ↗
19. Sintered (Ti,W)C carbides10.1016/j.scriptamat.2006.12.026 ↗
20. Microstructure and mechanical properties of Ti-based solid-solution cermets10.1016/j.msea.2010.11.076 ↗
21. Characterization of Ti-based solid solution cermets prepared by mechanically induced self-sustained reaction and subsequent pressureless sintering10.1016/j.jallcom.2013.08.120 ↗
22. Synthesis of ultrafine (Ti,W,Mo,V)(C,N)–Ni composite powders by low-energy milling and subsequent carbothermal reduction–nitridation reaction10.1016/j.jallcom.2009.07.088 ↗
23. The carbon nonstoichiometry and the lattice parameter of (Ti1−xWx)C1−y10.1016/j.jeurceramsoc.2009.10.022 ↗
24. Effect of Mo addition on the microstructure and mechanical properties of ultra-fine grade TiC–TiN–WC–Mo2C–Co cermets10.1016/j.ijrmhm.2007.05.005 ↗
25. Microstructure of model cermets with high Mo or W content10.1016/S0263-4368(99)00032-3 ↗
26. Effect of Mo2C on the microstructure and properties of WC–TiC–Ni cemented carbide10.1016/j.ijrmhm.2008.01.007 ↗
27. Effect of molybdenum content on the microstructure and mechanical properties of ultra-fine Ti (C, N) based cermets10.1016/j.matchar.2008.03.008 ↗
28. Hardness to toughness relationship offine-grained WC–Co hardmetals10.1016/S0263-4368(98)00028-6 ↗
29. Modifications of the Weibull distribution: a review10.1016/j.ress.2013.11.010 ↗
30. Is Weibull distribution the most appropriate statistical strength distribution for brittle materials?10.1016/j.ceramint.2007.10.003 ↗
31. Fracture toughness of coated TiCN–WC–Co cermets with graded composition10.1016/S0263-4368(01)00025-7 ↗
32. Fracture of brittle materials: effects of test method and threshold stress on the Weibull modulus10.1016/S0955-2219(00)00183-7 ↗