Microstructure and Property of Ni60-WC/Cr12MoV Bimetallic Composite Prepared by Aerobic Sintering
Bimetallic composite was one step prepared by box-furnace,and the microstructure and properties of the interface were studied.The results show that under the process of 1120 ℃× 1.5 h and furnace cooling to 400 ℃ and then air cooling,the interface is obvious and non-porous,impurities and other defects.The width of translation zone is 600 μm.The microhardness of transition zone distributes gradiently from 997.00 HV to 397.87 HV.Interface bonding strength is 191 MPa,which is closed to the strength of Ni60-WC.