Effect of composition additivities of the mixture of graphite with ultrafine powders of nickel and copper on activated sintering of Cr-Ni powder steel

摘要

Effect of addition of composite mixture of graphite with Ni and Cu ultrafine particles on sintering and properties of chromium-nickel powder steel has been studied. It is established that introduction of 0,3 percent C and 0,5-1,0 percent ultrafine particles of Ni and Cu into the powder mixture leads to increase of density and mechanical properties of sintered 17Cr-2Ni steel. A single addition of Ni or Cu ultrafine particles has a more pronounced effect than their combined application.