Abstract
Gray cast iron has many applications as pipes, pumps and valve bodies where it has influenced by heat and contact with other solutions . This research has studied the corrosion behavior and Vickers hardness of gray cast iron by immersion in four strong alkaline solutions (NaOH, KOH, Ca(OH)2, LiOH)with three concentrations (1%,2%,3%) of each solution. Dry sliding wear has carried out before and after the heat treatments (stress relief, normalizing, hardening and tempering). In this work, maximum wear strength has obtained at tempered gray cast iron and minimum corrosion rate has obtained in LiOH solution by forming protective white visible oxide layer.
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