Preparation of Ni–Mo–C/Ti(C,N) coated powders and its influence on the microstructure and mechanical properties of Ti(C,N)-based cermets
Source abstract
Abstract
Abstract Ni–Mo–C/Ti(C,N) coated powders, namely Ni–Mo alloy and Mo 2 C coated Ti(C,N) composite powders, were synthesized by using a heterogeneous precipitation and thermal reduction method, then pressed and vacuum sintered to fabricate cermets. The chemical composition, microstructure and phases of the composite powders and the microstructure and properties of sintered cermets were experimentally investigated. The results show that a fine and uniform microstructure of (Ti,Mo)(C,N)-Ni cermets without the conventional core-rim structure is obtained. The phases formed during the preparation of the coated powders as well as the cermets were analyzed by means of a X-ray diffraction (XRD) technique. The XRD result confirms the formation of the Ni 3 Ti phase in the cermets. Due to the formation of the non-magnetic Ni 3 Ti and the dissolution of Mo in Ni binder phase, the magnetic properties are strongly retarded. The fracture of the cermets is mainly characterized by inter-granular and dimple fractures. Better mechanical properties can be obtained in comparison with conventionally fabricated ones.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced materials and composites · Advanced ceramic materials synthesis · Powder Metallurgy Techniques and Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (20)
Show source-provided references
1. Cutting performances, mechanical property and microstructure of ultra-fine grade Ti(C,N)-based cermets10.1016/j.ijrmhm.2005.09.001 ↗
2. Ultrafine (Ti,M)(C,N)-based cermets with optimal mechanical properties10.1016/j.ijrmhm.2010.08.007 ↗
3. Effect of sintering atmosphere on microstructure and properties of TiC based cermets10.1007/s11771-007-0041-0 ↗
4. Sintering technology of Ti(C,N) base cermets10.1016/S1003-6326(10)60134-3 ↗
5. Microstructure and cutting performance investigation of Ti(C,N)-based cermets containing various types of secondary carbides10.1016/j.ijmachtools.2006.09.012 ↗
6. Progress in research of coated powders
7. Preparation of Cu/Sic composite particles by coating method
8. Gel-combustion synthesis of NiO–MoO3 mixtures and their reduction to Ni–Mo alloys10.1016/j.matchemphys.2008.05.043 ↗
9. Research status on preparation of coated composite powder by heterogeneous deposition
10. Preparation and electrochemical performance of nano-scale nickel hydroxide with different shapes10.1016/j.matlet.2006.05.026 ↗
11. Comparative study of β-nickel molybdate phase obtained by conventional precipitation and the sol–gel method10.1016/j.materresbull.2003.11.005 ↗
12. Microstructures of cemented carbides10.1016/S0261-3069(01)00006-1 ↗
13. Microstructural evolution during the sintering of a Ti(C,N)-Mo2C–Ni alloy10.1016/0921-5093(95)10126-8 ↗
14. Thermodynamic evaluation and calculation of phase equilibria of the Ti–Mo–C–N quaternary system10.1016/S0925-8388(98)00711-7 ↗
15. The Ti–Mo–C–N system: stability of the (Ti,Mo)(C,N)1−x phase10.1016/0925-8388(95)01652-X ↗
16. Mechanochemical synthesis of nanocomposite powder for ultrafine (Ti, Mo)C–Ni cermet without core-rim structure10.1016/j.ijrmhm.2004.06.004 ↗
17. Mechanical properties and microstructures of submicron cermets10.1016/0263-4368(95)92677-C ↗
18. Thermodynamics of the formation of contiguity between ceramic grains and interface structures of Ti(C,N)-based cermets10.1016/j.ijrmhm.2008.12.005 ↗
19. Microstructure and mechanical properties of ulrafine Ti(C,N)-based cermets fabricated from nano/submicron starting powders10.1016/j.ceramint.2004.09.013 ↗
20. Sintered cermets׳ structural secrets show up by coercive forces10.1016/S0026-0657(05)70452-5 ↗