Effect of various carbides on the dissolution behavior of Ti(C0.7N0.3) in a Ti(C0.7N0.3)–30Ni system
Source abstract
Abstract
Abstract HfC, TaC, or WC were individually added to a Ti(C0.7N0.3)–30 wt% Ni system, in order to investigate microstructural changes and the dissolution behaviors of Ti(C0.7N0.3) and the carbides. Of these systems, the Ti(C0.7N0.3)–WC–Ni system proved to be the most favorable for the refinement of microstructure. The fraction for the cross-sectional area of the Ti(C0.7N0.3) cores, which is related to the amount of Ti(C0.7N0.3) dissolved, increases and the thickness of solid solution rims decreases in the order of HfC, TaC, and WC added. This finding indicates that the dissolution rate of Ti(C0.7N0.3) in a Ni melt is the lowest when WC is added. In addition, it was found that the average dissolution rate of Ti(C0.7N0.3) in the HfC-containing system is ∼1.6 and 1.9 times higher than those for Ti(C0.7N0.3) in the TaC- and WC-containing systems at the same sintering conditions. Further, the dissolution rates of TaC and WC were ∼80% of the rate found for HfC during the formation of the outer rim.
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References (22)
Show source-provided references
1. Mechanisms of surrounding structure formation in sintered TiC–Mo2C–Ni alloy
2. Formation of core/rim structures in Ti(CN)–WC–Ni cermets via a dissolution and precipitation process10.1111/j.1151-2916.2000.tb01415.x ↗
3. Coarsening of hafnium carbide particles in tungsten10.1007/BF00349889 ↗
4. Effect of HfC addition on microstructure of Ti(CN)–Ni cermet system10.1179/003258999665594 ↗
5. Oxidation of Ti(C,N)-based ceramics exposed at 1373 K in air10.1111/j.1151-2916.2000.tb01255.x ↗
6. Some properties of Ti(C,N)–WC–Ni alloy10.2497/jjspm.33.199 ↗
7. Titanium carbonitride-based cermet: processes and properties10.1016/0921-5093(93)90588-6 ↗
8. Effect of nitrogen content on grain growth in Ti(C,N)–Ni–Mo sintered alloy
9. Microstructural evaluation during the sintering of Ti(C,N)–Mo2C–Ni alloy10.1016/0921-5093(95)10126-8 ↗
10. Microstructure development during sintering and heat-treatment of cemented carbides and cermets10.1016/S0254-0584(00)00441-7 ↗
11. Solubility of iron alloys: 1, Thermodynamics
12. Shewman · 1989
13. Crank · 1956
14. Instability of solid–liquid interface in TiC–Ni cermets
15. Microstructural evolution during the sintering of TiC–Mo–Ni cermets10.1111/j.1151-2916.1993.tb08331.x ↗
16. The instability of solid–liquid interface in Mo–Ni alloy induced by diffusional coherency strain10.1016/0001-6160(87)90090-3 ↗
17. Underwood · 1968
18. Chase MW, editor. In: 4th JANAF Thermochemical Tables, NIST, 1998
19. High resolution electron microscopy of Ti(C,N) cermets
20. Jung J, Kang S. Microstructure of TiC–TiN–Ni–(B) cermet systems, Powder Metall; 2001 [accepted]10.1179/003258902225001560 ↗
21. The formation of core/rim structure in the Ti(C0.7N0.3)–WC–NbC–Ni system10.1111/j.1151-2916.2001.tb00750.x ↗
22. Kim SW, Kang S., 2001 [to be published]10.1055/s-2001-17514 ↗