Corrosion of ships

Fouling and rust of marine equipment

Nature

The action of salt on metal, oxidation, incrustation and fouling by objects, cause high costs to ocean transport due to ship damage and preventative maintenance. Sea-water, spray, and atmospheric corrosion, as well as rust, can penetrate all parts of ships interiors and exteriors. Incrustation of ship hulls, notably the underside, by algae, bacteria and other sea-borne organisms destroys paint, baring the metal to corrosion, whilst heavy layering by the encrusting organisms causes drag and higher fuel costs. Weakened or encrusted equipment and structures cause accidents, impair navigational ability, and may result in the total loss of a vessel.

Incidence

Corrosion of ships is a persistent global issue, with the World Corrosion Organization estimating that corrosion costs the maritime industry over US$50 billion annually. According to a 2020 report by the International Maritime Organization, approximately 30% of ship maintenance budgets are allocated to combating corrosion, with vessels operating in tropical and polar waters being particularly vulnerable due to harsh environmental conditions.
In 2012, the bulk carrier "MV Smart" suffered severe hull corrosion while operating off the coast of Richards Bay, South Africa. The compromised structural integrity contributed to the vessel breaking apart during heavy weather, resulting in a total loss and significant environmental impact.

Claim

The corrosion of ships is a critical issue that demands urgent attention. It not only jeopardizes the safety of maritime operations but also leads to significant economic losses and environmental hazards. As vessels deteriorate, the risk of catastrophic failures increases, endangering lives and marine ecosystems. Ignoring this problem undermines the integrity of global trade and maritime security. We must prioritize innovative solutions and robust maintenance practices to combat this pervasive threat to our oceans and industries.

Counter-claim

Corrosion of ships is often overstated as a significant issue. With modern materials and advanced coatings, the maritime industry has effectively mitigated corrosion risks. The focus should be on more pressing concerns, such as environmental sustainability and technological advancements. Overemphasizing corrosion distracts from innovation and improvement in shipbuilding. Instead of worrying about rust, we should celebrate the resilience and longevity of modern vessels, which are designed to withstand the elements far better than ever before.