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Contents of chemical elements inside and outside of the corrosion pits at different corrosion exposure times in corrosion-resistant alloy steel bars. (Mn-pit represents Mn content inside the pits, Cr-pit represents the Cr content inside the pits). (a) Mn element contained in inside and outside of the corrosion pits; and (b) Cr element contained in inside and outside of the corrosion pits.
