Influence of microalloying on the corrosion resistance of steel in saturated calcium hydroxide |
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| Authors: | M M Hegazy M M Eissa |
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| Affiliation: | (1) Dept. of Chemistry, Helwan University, 1143 Cairo, Egypt;(2) Steel Metallurgy and Ferroalloys Department, CMRDI, 11421 Cairo, Egypt |
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| Abstract: | The influence of microalloying vanadium or titanium on improving the corrosion resistance of mild steel in saturated calcium
hydroxide solution was investigated. Potential-time, potentiodynamic polarization, and impedance measurement techniques were
employed. The corrosion products have been examined by infrared and X-ray diffraction analysis and by scanning electron microscopy.
It has been shown that the grain refining, due to microalloying, plays an important role in enhancing the corrosion resistance
of steel. Scales of calcite and iron oxides on top of a protective oxide are formed on the investigated steels. |
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