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Evaluation of cathodic protection of mild steel with magnesium anodes in 0.5 M HCL

Loto, C. A. and Loto, R. T. and Popoola, A. P. I. (2019) Evaluation of cathodic protection of mild steel with magnesium anodes in 0.5 M HCL. Chemical Data Collections, 22.

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The performance of two different sizes of galvanic magnesium anodes on the cathodic protection of mild steel in 0.5 M hydrochloric acid was evaluated at room and elevated temperatures. The cathodic protection reactions process was observed by weight-loss method's corrosion rate calculation and potential and current measurement methods. The magnesium anodes were observed to be effective as sacrificial anode in the tested environments. The results obtained for the potential and current measurements bear close correlation with the corrosion rate method in the hydrochloric acid environment. The varying anode cross-sectional areas used showed the anode size effects. The varied percentage protection of magnesium anodes ranged between 5.88 and 59.81% (Mg 1); and, 16.80 and 48.65% (Mg 2) respectively at 27°C. At 60°C, the percent change ranged between 22.49 and 61.46 (Mg 1); and 21.7 and 68.95 for Mg anode 2.

Item Type: Article
Uncontrolled Keywords: CorrosionCathodic protectionMagnesiumSteelHCl
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 29 Aug 2020 00:15
Last Modified: 29 Aug 2020 00:15

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