Corrosion of working chains continuously immersed in seawater

Tribocorrosion behaviour of mooring high strength low alloy steels in synthetic seawater

“…When immersed in the ocean, the chains are subjected to high corrosion rates [1] especially in the splash zone, where the concentration of oxygen is high. Moreover, the floater motions induced by the environmental actions due to waves, wind and current movements of the sea [2,3] involves the links to be in relative motion with each other leading to a continuous wear in the surfaces in contact [1].…”

“…Moreover, the floater motions induced by the environmental actions due to waves, wind and current movements of the sea [2,3] involves the links to be in relative motion with each other leading to a continuous wear in the surfaces in contact [1]. Wear and corrosion are two processes that lead to a surface damage due to a progressive material loss as a result of mechanical and electrochemical processes, respectively [4].…”

Fatigue Analysis of Deepwater Hybrid Mooring Line Under Corrosion Effect

“…Melchers et al [19] investigated the corrosion on fully submerged chains, and indicated that the mean value of the corrosion rate is slightly smaller than that given in DNV OS-E301 [7]. So, the corrosion rate of the chain used in this paper was assumed according to the DNV OS-E301.…”

Environmental management strategy for Shah Alam solid waste transfer station, Malaysia

“…At low pH the evolution of hydrogen tends to eliminate the possibility of protective film formation so that steel continues to corrode but in alkaline solutions, the formation of protective films greatly reduces the corrosion rate. Hence, the greater the water alkalinity, the slower the rate of bacteria attacks [21] [22]. Therefore the rate of corrosion tends to reduce with higher pH values at the corroding surface.…”