Corrosion behavior of metals and alloys in marine-industrial environment

Natesan, M.; Selvaraj, Subbiah; Manickam, Tharmakkannu; Venkatachari, G.

doi:10.1088/1468-6996/9/4/045002

Cited by 34 publications

(20 citation statements)

References 48 publications

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“…The corrosion rate by weight loss technique 18,19 of copper in seawater for an exposure period of six months are portrayed in Table 5. The corrosion rate values of copper in seawater ranges from 0.026 to 0.084 mmpy.…”

Section: Corrosion Behaviour Of Cs In Seawatermentioning

confidence: 99%

Settlement and Corrosion Behaviour of Marine Fouling Organisms

2018

Chem Sci Trans

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Abstract:The fouling organisms of seawater embrace of algae (green and red), barnacles, molluscs and worms. The seasonality of attachment and quantification of fouling organisms on copper over a period of six months have been observed in the seawater. Photosynthetic actions of algae accelerate corrosion on copper. Barnacles and Molluscs cause pitting / crevice corrosion beneath their attachment site. In general, the assemblage of biofouling on copper surface over a period of exposure cause the corrosion rate. The pitting / crevice corrosion has been studied, using a high resolution microscope. The magnitude of origin experienced by copper is emphasized in terms of change in mechanical properties and the surface characteristics of the material.

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Section: Corrosion Behaviour Of Cs In Seawatermentioning

confidence: 99%

Settlement and Corrosion Behaviour of Marine Fouling Organisms

2018

Chem Sci Trans

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“…The time of wetness is defined by ISO 9223 as the number of hours per year that the relative humidity is above 80% for temperatures above 0 °C . An aqueous film is needed to cause corrosion, and the time of wetness is a measure of the time that there are such conditions causing corrosion . The time of wetness may be dependent on size, orientation, mass, and temperature.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of the galvanizing of galvanized‐steel electricity transmission towers

Rodger

Bartlett

Atrens

2017

Materials & Corrosion

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The remaining galvanizing layer thicknesses were measured on a selection of towers in the local Brisbane area. The galvanized steel members of the electricity transmission towers in the local area have large remaining galvanizing layer thicknesses. The measured local zinc corrosion rate of 0.18 μm per year was small compared to the data scatter of measured galvanizing layer thicknesses, and was consistent with the low expected zinc corrosion rate of 0.1–4 μm per year. The remaining galvanizing layer is expected to last over 20 years.

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“…Remote locations with little or no data connectivity, variable temperatures, humidity and salt [1,2] combine to create a 'perfect storm' of undesirable conditions for IT projects. As a result of this the commercial diving industry has lagged behind other sectors in terms of its adoption of digital infrastructure, and the various benefits that come with it.…”

Section: Introductionmentioning

confidence: 99%

A novel remote access technical database for the offshore diving industry

Johnston

Henaughen

Stewart³

et al. 2013

WIT Transactions on Information and Communication Technologies

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The commercial diving industry has largely resisted efforts to implement digital information management systems. The high cost and inherent difficulty of creating not only the necessary software systems, but hardware which is capable of operating in harsh marine conditions has proved to be a major obstacle. Further to this is the challenge of creating data connections between centralised data stores and offshore field units, or units in remote areas with limited access to internet infrastructure. Dive logs are commonly taken by hand, requiring several stages of transcription and transport over days or weeks before they can be communicated to clients. With minimal standards in place regarding standardised terminology the consistency of reports can vary not only between marine contractors, but between individuals within these organisations. The lifesupporting nature of many marine structures renders this type of miscommunication potentially expensive and potentially life-threatening. This paper outlines one approach to these problems through amalgamating existing communications, database and software technologies to provide a system which addresses the needs of the industry. This approach has provided the capability to manage dive teams both within the UK and globally. Real-time video streaming of subsea operations combined with software data capture tools, rugged hardware and integrated database technologies allows remote teams to communicate with clients and industry specialists while on-site. Clients can also secure remote access to a technical database post-dive where they are able to view video streams and associated key technical information related to the dive. The benefits and added value of the system to the stakeholders are examined, along with the applicability of the system to broader industry.

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Corrosion behavior of metals and alloys in marine-industrial environment

Cited by 34 publications

References 48 publications

Settlement and Corrosion Behaviour of Marine Fouling Organisms

Settlement and Corrosion Behaviour of Marine Fouling Organisms

Corrosion of the galvanizing of galvanized‐steel electricity transmission towers

A novel remote access technical database for the offshore diving industry

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