Powder steel sintering efficiency and mechanism of activation through copper and carbon addition

摘要

The peculiarities of the effect of additions 0.5-5.0 percent of ultrafine and ordinary copper powders on vacuum sintering and properties of chromium stainless steel have been studied. It is proposed to use for production of qualitative steel additions of copper powder with graphite powder, which has spent on oxides reduction in initial powder and additions during sintering. Complex additions with 0.5-1.0 percent ultrafme Cu and 0.3 percent C efficiently diminishes porosity and increases mechanical properties of sintered steel.