Study on Hot Corrosion Behavior of Gray Iron in Molten Lead-rich Slag
The hot corrosion behavior of gray iron in molten lead-rich slags at 1150℃ were studied and analyzed.The morphology and corrosion products of gray iron wee observed and analyzed.The results indicate that hot corrosion resistance of gray cast iron is chiefly impacted by the distribution of graphite and graphite content,and the main substances of the lead-rich slag involved in corrosive reaction are PbO and PbO·SiO2.Hot corrosion mechanism of gray iron in molten lead-rich slag was discussed from the electrochemical model.