Effect of chromium on the corrosion behaviour of powder-processed Fe-0.45wt% P alloys |
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| Authors: | Yashwant Mehta Shefali Trivedi K Chandra P S Mishra |
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| Affiliation: | (1) Chemistry Department, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt;(2) Chemistry Department, Faculty of Science, Benha University, Benha, Egypt;(3) Central Chemical Laboratories, Egyptian Electricity Holding Company, Sabtia, Cairo, Egypt |
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| Abstract: | The corrosion behaviour of Fe-0.45P with/without addition of chromium, prepared by powder forging route was studied in different
environments. The corrosion studies in acidic (0.25M H2SO4 solution of pH 0.6) and neutral/marine (3.5% NaCl solution of pH 6.8) solutions were conducted using Tafel Extrapolation
method. The rate of corrosion in alkaline medium (0.5M Na2CO3 + 1.0M NaHCO3 solution of pH 9.4) was measured using linear polarization technique. The studies compare electrolytic Armco iron with Fe-P
alloys. It was observed that, chromium improved the resistance to corrosion in acidic and marine environments. The corrosion
rates were minimal in alkaline medium and low in neutral solution. |
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