Effect of Sintering Temperature on Microstructure and Mechanical Properties of WC-16TiC-xTaC-9Co Cemented Carbides

Chong Cai Zhang; Quan Wang

doi:10.4028/www.scientific.net/AMM.268-270.340

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 268-270Effect of Sintering Temperature on Microstructure...

Effect of Sintering Temperature on Microstructure and Mechanical Properties of WC-16TiC-xTaC-9Co Cemented Carbides

Abstract:

In this paper, the WC-16TiC-xTaC-9Co and Co are mixed together preparing for WC, (W, Ti, Ta) C. By high-energy ball milling, the powder is cold isostatic pressed and vacuum sintered by 1410°C, 1430°Cand 1450°C.The physical properties and the micrographs of samples are detected. The main conclusions are as following: sintered samples have the best comprehensive performance at 1450°C, the density of the sample is 99.7% and the actual density is 10.91g/cm3. The hardness is 92.8 HRA and the transverse rupture strength (TRS) is 1100MPa. The grain size grows up obviously with the high temperature. The average grain size of WC is 0.7μm and the average size of (W, Ti, Ta)C is 3μm.

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Periodical:

Applied Mechanics and Materials (Volumes 268-270)

Pages:

340-343

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.268-270.340

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Online since:

December 2012

Authors:

Chong Cai Zhang, Quan Wang

Keywords:

Cemented Carbide, Mechanical Property, Microstructure, Sintering Temperature

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References

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