Mehran University Research Journal Of Engineering &
Technology (HEC Recognized In Category "X")
Publishing Since 1982.



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An Experimental Study on the Deterioration of Paint Coatings in the Bilges of a Sea Vessel

Keywords: Corrosion, Bilges, Optical Atomic Microscope, Pitting, Topography

Mehran University Research Journal of Engineering & Technology

Volume 35 ,  Issue 2

TANZILA  YOUNAS,AQUEEL  SHAH,TAHIR ABDUL HUSSAIN  RATLAMWALA

Abstract

Scantling and rolling tolerances have gradually improved. The durability of anticorrosive property of coatings is the critical factor in safeguarding the capital investment locked up in the structure of the vessel. Understanding of reduction in corrosion rate due to protective coatings and the breakdown point of the coatings is a vital part of safe vessel operation. In this paper, surface morphology of paint scheme used in bilges water, is measured by using both optical and AFM (Atomic Force Microscope) to prevent corrosion. Both the strategies are utilized to study natural practices of diverse coatings in addition to the impact of their film development and shades. The results demonstrate that undercoat epoxy utilized within bilges water has great resistance towards corrosion in bilges water immersion test. Surface attributes of distinctive layers are noticeably unique in relation to one another in surface morphology. Mild steel coated with epoxy under coat shows better surface characteristics whereas film of primer epoxy coat has many pits as observed by percentage surface imaging of the current bilges paint scheme