Study on Corrosion Mechanism for G105 Steel in NaCl Solution

摘要

By the method of weight loss and polarization technique, the corrosion rate for G105 steel in NaCl solution was studied. And the contents of the DO (dissolved oxygen) in NaCl solution were measured by the iodimetry. The results showed that with the increasing of ion concentration, the corrosion rate increased at first, then decreased, and corrosion rate changed with corrosion production covering the electrode surface. There was linear relation between contents of DO and concentration of NaCl solution.