Microstructure and Properties of Fine-Grained WC-10Co-0.5Cr3C2-1TaC-0.5Ru Prepared by Rolling Ball Milling and Low-Pressure Sintering

This study focuses on the preparation of fine-grained WC/Co composite powder using rolling ball milling and spray drying techniques. The cemented carbide composition achieved through low-pressure sintering technology was WC-10Co-0.5Cr3C2-1TaC-0.5Ru (wt.%). To effect temperature microstructure mechanical properties WC-10 wt.% carbide, phase constituents material were analyzed X-ray diffractometry scanning electron microscopy. Additionally, physical examined. results indicate that as increased from 1390 °C to 1450 °C, grain size WC in alloy increased, resulting a slight decrease hardness, an increase fracture toughness, transverse strength increasing first then decreasing. sintered hard prepared at 1410 exhibited fewer pores uniform fine size, reaching density 99.98%, hardness 91.8 HRA, 3962 MPa, toughness 14.7 MPa⋅m1/2