WC-CO Based Scratch Tools Production and Characterization for Brick Factory

Abstract

The main objective of this study is to produced WC-Co-Ni ceramic-metal composites Electroless Ni coated WC-Co powders were used in powder metallurgy techniques for making samples. 2 μm - 10μm micron grain size of WC powders and 10μm grain sized Co powders obtained from Sigma Aldrich Company in this work. Co-WC powders were cold pressed under 400bar pressure before sintered 1200oC -1400oC in microwave furnace. 90% N2 + 10% H2 mixed atmosphere were used during sintering. Mechanical tests and metallographic analysis were investigated for characterization of composite materials after sintered. Experimental results carried out for 1300°C suggest that the best properties as σmax and hardness (HB) were obtained at 1300°C and the microwave furnace sintering WC and Co powders is a promising technique to produce ceramic reinforced Co composites.

Keywords

• Powder Metallurgy
• Ceramic–Metal Composites
• Microwave Powder Sintering
• Scratch Tools.

References

1. Xiong Y., Lau K., Zhou X., Schoenung J. M., 2008,
2. “A Streamlined Life Cycle Assessment On The Fabrication Of WC-Co Cermets”, Journal Of Cleaner Production, Volume: 16, 1118-1126.
3. Ma X. M., Ji G., 1996, “Nanostructured WC-Co Alloy
4. Pepared By Mechanical Alloying”, Journal Of Alloys And Compounds, Volume: 245, 30-32. McCandlish L., Kear B.H., Kim B. K., 1992,
5. “Processing And Properties Of Nanostructured WC- Co”. Nanostructured Materials, Volume: 1, 119-124. Liu W., Song X., Zhang J., Zhang G., Liu X.,2008,
6. “Thermodynamic Analysis For In Situ Synthesis Of WC–Co Composite Powder From Metal Oxides”, Materials Chemistry And Physics, Volume: 109, 235– 2 Koc R., Kodambake S. K., Euro J., 2000, Ceramic Materyals, Volume: 20, 1859.
7. Zhang , Z. Y., Wahlbeg S., Wang M. S., 1999,
8. Muhammed M., Nanostructral Materyals, Volume:12 163-1

9. McCandlish L. E., Kear B. H., 1992, Nanostructural Materyals. Volume:1, 119125.
10. McCandlish L. E., Kear B. H., 1993, Nanostructural Materyals,Volume: 3, 19-24.
11. Ryu T., Sohn H. Y., Han H., Kim Y., Hwang K. S., Mena M., And Fang Z. Z., February 2008, “Nanograined Chemical
12. Materials Transactions B, Volume: 39, 1-6. By And Vapor Synthesis”, Metallurgical Upadhaya G. S., 1998, “Cemented Tungsten
13. Carbide”, Noyes Publications, New York (NY), 1–6. Zhu Y. T., And Manthiram A., 1996, Composites,
14. Part B, Eng., Volume: 27, 407–413. Nassaj E. T., Mirhosseini S. H., 2003, “An in situ
15. WC–Ni Composite Fabricated By The SHS Method”, Journal Of Materials Processing Technology, Volume: 142, 422–426. Upadhyaya G. S., Bhaumik S. K., 1988, “Sintering
16. Of Submicron WC–10% Co Hardmetals Containing Ni And Volume:249, 105–106. Sciences Engineering-A, Li T., Li Q, Fuha J. Y. H., Yu P. C., Wu C. C., 2006,
17. “Effects Of Lower Cobalt Binder Concentrations In Sintering Of Tungsten Karbide”, Materials Science And Engineering A Volume: 430, 113–119. Ban Z. G., Shaw L. L., 2002, “Synthesis And Processing Of Nanostructured WC-Co Materials”,
18. Journal Of Materials Science, Volume: 37, 3397–3403.
19. Mannesson K., Elfwing M., Kusoffsky A.,Norgren S., Agren J., 2008, “Analysis Of WC Grain Growth
20. During Sintering Using Electron Backscatter Difraction And Image Analyses”, International Journal Of Refractory Metals & Hard Materials, Volume: 26, 449– 4 Akhtar F., Humail I. S., Askari S. J., Tian J., Shiju G., 2007, “Effect Of WC Particle Size On The Microstructure, Mechanical Properties And Fracture Behavior
21. Carbides”, International Journal Of Refractory Metals And Hard Materials, Vol: 25, 405-410. Cemented Greenfield M., Wolfe G., 1998, “Powder Metal
22. Technologies And Applications Of ASM Handbook”, ASM International, Vol: 7, 492–496. Krishna B. V., Misra V. N., Mukherjee P. S., Sharma P., 2002, “Microstructure And Properties Of Flame
23. Sprayed Tungsten Carbide Coatings”, International Journal Of Refractory And Hard Materials, Vol: 20, 355-3
24. Rogl P., 1998, “Phase Diagrams Of Ternary Metal–
25. A. Yönetken, A., Erol, “Fabrication ofelectroless Ni plated Fe-TiC metal matrix composites”, Science And Engineering of Composite Materials, 18/3, 145-149, 2011