Pulse electric current sintering behavior of atomized cast-iron powder of Fe-C system containing hypo-eutectic carbon (I) --Porosity control and microstructure

摘要

We studied the pulse electric current sintering behavior of the atomized cast-iron powder of Fe-Csystem containing hypo-eutectic carbon and the microstructures of sintered bodies. The results wereas follows:(1) The porosity control of the atomized cast-iron sintered body, which was very difficult by thevacuum sintering method, could be done by the pulse electric current sintering method with severalsintering conditions, that is, the sintering temperature and the sintering pressure.(2) The microstructure of the sintered body was depending on the sintering temperature, and wasindependent of the sintering pressure.