الفهرس Only 14 pages are availabe for public view
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Abstract
The corrosion behaviour of cast iron in aqueous solutions has been studied using weight loss, open-circuit potential and potentiodynamic polarization methods at pH 2 , 4 , 7 , 9 and pH 11. The study showed that in acid media ductile cast iron had slightly lower corrosion resistance than grey cast iron. On the other hand heat-treated samples promotes their
passivation. It was found that the tendency of cast iron to be
corroded in solutions increases with increasing chloride iron concentration. Ductile cast iron which was heat-treated at 350oC for 15 minutes was the most corrosion resistant and also
ductile cast iron which was heat-treated at 400 oC for 180 minutes. The D350/15 cast irons show good corrosion
resistance in acid environments comparable to that of other samples. While in basic media grey cast iron was the lower corrosion resistance