Citation:
Abbas M, Simms N, Lao L,et al., (2021) Environmental impact on the corrosion behavior of marine grade steel in the Arabian Sea conditions - a comparative analysis of field and laboratory based corrosion tests. In: 20th International Metallurgy and Materials Congress (IMMC2021), 10-12 June 2021, Virtual Event: Istanbul, Turkey
Abstract:
Corrosion-induced degradation of marine steel
structures is highly dependent on the surrounding
environmental conditions and so varies significantly
around global seawaters. This research has
investigated the dependence of corrosion of carbon
steel alloy for marine service on seawater
composition and climatic conditions typical of the
Arabian Sea. Natural and polluted seawater sites in
the Arabian Sea were selected for field exposures. In
addition, environmental conditions spanning those
anticipated for the shipping structures operating in
the Arabian Sea have been simulated in laboratorybased
experiments by using heated and aerated
artificial seawater. Following their exposures, the
performance of samples have been investigated
using the weight-loss and dimensional metrology
methods. High overall corrosion losses were
observed in the polluted seawaters than in the natural
seawater conditions of Arabian Sea.