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The effects of alternating magnetic field on the corrosion morphologies,corrosion rate,and corrosion products of copper in 3.5% NaCl solu- tion,sea water,and magnetized sea water were investigated using electrochemical test,scanning electron microscopy/energy dispersive analysis system of X-ray(SEM/EDAX),and X-ray diffraction(XRD).The results show that the corrosion rate of copper in magnetized sea water is minimal.Moreover,the surface of the specimen in magnetized sea water is uniform and compact as compared with those in 3.5% NaCl solution and sea water.The corrosion products of copper in magnetized sea water are mainly Cu_2O and CuCl_2.However,the corrosion products in sea water are CuCl,Cu_2Cl(OH)_3,and FeCl_3·6H_2O.The electrochemical corrosion mechanisms of copper in the three media were also discussed.
The effects of alternating magnetic field on the corrosion morphologies, corrosion rate, and corrosion products of copper in 3.5% NaCl solu- tion, sea water, and magnetized sea water were investigated using electrochemical test, scanning electron microscopy / energy dispersive analysis system of X ray diffraction (SEM / EDAX), and X-ray diffraction (XRD). The results show that the corrosion rate of copper in magnetized sea water is minimal. Core over, the surface of the specimen in magnetized sea water is uniform and compact as compared with those in 3.5% NaCl solution and sea water. The corrosion products of copper in magnetized sea water are mainly Cu_2O and CuCl_2.However, the corrosion products in sea water are CuCl, Cu_2Cl (OH) _3, and FeCl_3 · 6H_2O. corrosion mechanisms of copper in the three media were also discussed.