Maritime

A test programme was conducted to study corrosion behaviour of - 1. carbon and low alloy steels, 2. austenitic, martensitic and duplex stainless steels and 3. nickel-based Alloy 718 - in low oxygen content (20 & 200 ppb) seawater.

The crevice corrosion resistance of duplex and super duplex stainless steels used for seawater pumps was evaluated by comparing the to results tests conducted using actual seawater  with the behavior of the stainless steels in artificial seawater

Field experience was studied to identify the best solutions to Localized corrosion of 316 stainless steel instrument and chemical injection tubing in marine environment. Laboratory tests and exposure in marine environment of samples have been used to evaluate possible alternative materials and protective chemicals.

An effort was executed, to leverage the inherent benefits of polysiloxane coatings, to investigate, to assess or develop, and to implement an effective corrosion stain remover in the Navy with the focus of reducing both maintenance costs and time.

Within a few weeks in a 2012 cathodic protection (CP) trial for monopiled windturbine structures in the North Sea, the seawater pH inside the monopile dropped from 8 to 5 and toxic gas (H2S and CO) alarms were energised. This paper explains why.

This paper discusses options available to rehabilitate, extend the service life and strengthen damaged columns and piles in marine environments.

Builds upon a previous study that compared the corrosion resistance of multiple corrosion resistant alloys in several simulated (marine exhaust) scrubber environments.

A test protocol was developed to provide an assessment of the effects of various film defects as well as to perform post-exposure qualitative and quantitative evaluations on eight different coatings systems.

This paper discusses a comparative evaluation of the performance of various types of protective coatings available for the corrosion protection of structural steel components located in marine environments.

To explore the damage tolerance of as thermally sprayed aluminium (TSA), a coated carbon steel bar with damage was exposed to synthetic seawater.  TSA is capable of polarising the steel bar even with 90% of steel surface exposed.