IJBTT

The Selection of Magnesium alloys as Sacrificial Anode for the Cathodic Protection of Underground Steel Structure

	International Journal of Engineering Trends and Technology (IJETT)
	© 2017 by IJETT Journal
	Volume-51 Number-2
	Year of Publication : 2017
	Authors : Sundjono, Gadang Priyotomo, Lutviasari Nuraini
	DOI :  10.14445/22315381/IJETT-V51P214

Citation 

Sundjono, Gadang Priyotomo, Lutviasari Nuraini "The Selection of Magnesium alloys as Sacrificial Anode for the Cathodic Protection of Underground Steel Structure", International Journal of Engineering Trends and Technology (IJETT), V51(2),78-82 September 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
Various characterization 4 type of Mg sacrificial anodes (A,B,C and D from different products) have been conducted such as chemical composition, closed and opened potential, current capacity and efficiency test by galvanostatic method. On the basis of the results, the presence of impurities element gives detrimental effects of electrochemical properties and anode efficiency. The presence of high concentration of impurities for Cu, Fe and Ni have cathodic effect to Mg anode such as anode A and B , where the indication of galvanic corrosion take place in Mg anode. Mg anode A and B were lower current capacities, current efficiencies and consumption rates than Mg anode C and D. Mg anode A and B have a lower performance compared to Mg anode C and D Mg anode A and B are not eligible become a standard sacrificial anodes to protect steel structure in soil.

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Keywords
Magnesium sacrificial anode, cathodic protection, steel structures, chemical composition, closed potential, current capacity, current efficiency, consumption rate, galvanostatic.