Özet:

In this study, composite samples were produced by adding WC particles in different proportions (2.5, 5 and 10%) by weight to the CuNiSi powder mixture by powder metallurgy method. The prepared powders were mixed with a mechanical alloying device for 5 and 10 hours. After the mixing process, the powders were pressed with a press. In the cold pressing process, 600 MPa pressure was applied as pressing pressure. The sintering process of the pellets produced was carried out with an atmosphere controlled heat treatment furnace. The sintering process was applied in an argon atmosphere at 900 for 1 hour. Scanning electron microscope (SEM-EDS) to determine the microstructure of the samples produced, X-Ray Diffraction method (XRD) analysis to determine the phases formed in the internal structures of the produced samples, and microhardness (HV0.05) to determine the effect of WC particles on hardness. From the microstructure results, it was determined that the WC particles were homogeneously distributed in the structure. The hardness values increased due to the increased WC amount and mechanical alloying time in the samples produced. In addition, as a result of the experiments, 198 HV was measured as 0.05 in the sample, where 10% WC was added to the highest hardness value and mechanically alloyed for 10 hours.

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