STUDI EKSPERIMENTAL PENGARUH PERBEDAAN COATING PADA BAJA ASTM A36 TERHADAP LAJU KOROSI

Utama, Pradhipta (2022) STUDI EKSPERIMENTAL PENGARUH PERBEDAAN COATING PADA BAJA ASTM A36 TERHADAP LAJU KOROSI. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

Corrosion is an oxidation reaction between the material and its environment which results in the erosion of the material which can cause damage to the material. The most economical and efficient corrosion control is coating material. This study aimed to investigate the variation of coating which is better to withstand the acceleration of the corrosion rate in sea, river, and rain water media. This study implemented weight gain loss method in which the initial weight was reduced by the final weight. The corrosion rate test results indicated that on the seawater media, the Zinc Cold Galvanize coating had a corrosion rate value of 0.00035 mpy, Bodelac 2-in-1 coating was 0.00023 mpy, and Envy coating anti-corrosion base paint was 0.00094 mpy. In the river water media, the Zinc Cold Galvanize coating had a corrosion rate of 0.00031 mpy, the Bodelac 2-in-1 coating was -0.00060 mpy and the Envy coating anti-corrosion base paint was -0.00020 mpy. For rainwater media, the Zinc Cold Galvanize coating had a corrosion rate of 0.00059 mpy, Bodelac 2-in-1 coating was - 0.00055 mpy, and Envy coating anti-corrosion base paint was - 0.000001 mpy. From the whole research, it could be concluded that the variation of the 2–in–1 Bodelac coating was better for resisting the impact of the corrosion rate.

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