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Effect Of Mixing Speed And Solution Temperature On Cathodic Protection Current Density Of Carbon Steel Using Magnesium As Sacrificial Anode | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 27, Issue 8, 2009, Pages 1640-1653 PDF (198.55 K) | ||
| DOI: 10.30684/etj.27.8.17 | ||
| Author | ||
| K. T. Rashid | ||
| Abstract | ||
| In present work, The corrosion behavior of carbon steel in sodium chloride (NaCl) solution with different concentrations was studied .Effects of mixing speed (0 to 2220) r.p.m and the solution temperature (25, 35, 45, 55, 65)0c on cathodic protection current density were studied, that would provide a full cathodic protection for tube metal specimen of carbon steel immersed in 3.5% NaCl solution by sacrificial anode method using magnesium (Mg) as sacrificial anode. The results show that the concentration of sodium chloride in the electrolyte is an important factor in determining corrosion rate, 3.5 % concentration of sodium chloride gives maximum rate of corrosion. In addition, it has been found that the cathodic protection current density showed sharp increasing with mixing speed. The results have showed also that the cathodic protection current density increased with increasing the solution temperature and shifts the protection potential to high negative value. | ||
| Keywords | ||
| carbon steel; protection current density; sacrificial anode; corrosion rate; magnesium anode | ||
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