Corrosion Behavior of Mild Steel in Seawater from Northern Coast of Java and Southern Coast of Bali, Indonesia

Journal of Engineering and Technological Sciences

Gadang Priyotomo¹  Lutviasari Nuraini¹  S. Sundjono¹  Siska Prifiharni¹ 

[1] Research Center for Metallurgy and Material, Indonesian Institute of Sciences,Kawasan PUSPIPTEK, Gd. 474, Tangerang Selatan, Banten 15314,

关键词: conductivity;    dissolved oxygen;    immersion test;    mild steel;    salinity;    seawater;    total dissolved solids.;   

DOI  :  10.5614/j.eng.technol.sci.2017.49.6.5

学科分类：工程和技术（综合）

来源: Institute for Research and Community Services ITB

【 摘 要 】

The corrosion behavior of mild steel in seawater was investigated using an immersion test and energy-dispersive X-ray spectroscopy in solutions from the sites of Muara Baru, Suramadu and Tol Mandara. As reference, solutions of 3.5% and 5% NaCl were prepared. Dissolved oxygen, salinity, conductivity, and total dissolved solids (TDS) were measured. It was found that uniform corrosion occurred on the mild steel during the immersion test. The corrosion resistance of the steel decreased with increasing exposure time. Since the magnitudes of conductivity, salinity and TDS of all test solutions were similar, it was concluded that dissolved oxygen (DO) and chloride ions play an essential role in inducing the corrosion risk of mild steel. Both parameters hinder the formation of a stable passive film on the surface of corroded mild steel.

【 授权许可】

CC BY