Studies on the Flash Resistance Sintering of Metallic Powders

Abstract

Iron powder compacts under pressure were sintered by passing an electric current through the electrodes attached on the side of the compact. Apparent density and hardness of the sintered compacts increased with increasing electric current, secondary voltage and compacting pressure. But the tensile strength of the samples, which were fed with excessive electric power and partially melted, were lower than that of the uniformly sintered samples.