Influence of a paint coating on the corrosion of hull plates made of mild steel in natural seawater

Abstract

The corrosion resistance of mild steel (used to make hull plates in ship technology) in seawater before paint coating (Nippon paint, weatherbond advance) and after paint coating has been measured by electrochemical studies such as Polarisation study and AC impedance spectra. It is observed that after paint coating, the corrosion resistance of mild steel hull plates increases. Polarization study reveals that after paint coating, the linear polarization resistance increases and corrosion current decreases. AC impedance spectra reveal that in the presence of paint coating charge transfer resistance value increases, impedance value increases, phase angle increases and double layer capacitance value decreases.

Inhibition of corrosion of L 80 alloy in sodium hydroxide solution (pH=12) by succinic acid

“…Electrochemical studies such as polarization and AC impedance spectra [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28] have been employed to evaluate the corrosion protection nature of succinic acid.…”

“…The corrosion resistance of L80 alloy in sodium hydroxide solution (pH = 12) has been measured by electrochemical studies such as potentiodynamic polarisation study and AC impedance spectra [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

Façade Protrusion Recognition and Operation-Effect Inspection Methods Based on Binocular Vision for Wall-Climbing Robots

“…When painting, wall-climbing robots can have problems concerning areas of missed painting, and the color of the missed area can be obviously different from the painted area [33]. Edge detection can, therefore, be used to extract the outline of the missed painting area to calculate the missed painting distance, which can be used to control the spray gun offset by the corresponding distance for dynamic adjustment of the paint.…”