Effect of Cr3C2 and VC on the Mechanical and Structural Properties of Sintered WC-10wt%Co Nano Powders

DOI: 10.4236/wjnse.2013.32005   PDF   HTML     3,672 Downloads   6,031 Views   Citations

Abstract

The effect of addition of metallic carbides Cr3C2 and Cr3C2 + VC on structure and mechanical properties of WC-10 wt% Co nanocomposites have been studied. After preparing and compacting of the powders under pressure of 200 MPa, the samples were sintered at temperatures of 1370°C, 1410°C and 1450°C for 1 hour. Microstructural examinations by SEM show that the average grain size obtained for Cr3C2 + VC added alloys reduced 50 percent and also grain size distribution was narrower compared to those samples without grain growth inhibitors. Furthermore, co-addition of Cr3C2 and VC rise to a higher Vickers hardness and fracture toughness of the sintered alloys at 1410°C.

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M. Mahmoodan, H. Aliakbarzadeh and F. Shahri, "Effect of Cr3C2 and VC on the Mechanical and Structural Properties of Sintered WC-10wt%Co Nano Powders," World Journal of Nano Science and Engineering, Vol. 3 No. 2, 2013, pp. 35-39. doi: 10.4236/wjnse.2013.32005.

Conflicts of Interest

The authors declare no conflicts of interest.

References

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