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Materials Selection for Corrosion Protection Seawater

 
       
   

In this page you can find links to useful documents, papers regarding the Materials Selection and Corrosion Prevention of metal in Seawater, Saltwater and Brine and Seawater Corrosion Rates. If you want to suggest others useufl documents please use this form or send us an email.

 
    Copper Alloys for Marine Environments - The aim of this publication is to provide engineers with an appreciation of copper alloys commonly used in marine
applications. It will provide an overview of the range of alloys and their properties, and give references and sources for further information
 
    THE EFFECT OF ENVIRONMENT ON THE CORROSION OF METALS IN SEA WATER- -A LITERATURE SURVEY - This report is the first phase of a research program intended to investigate the effects of physical, chemical, and possibly biological factors present in natural environments on the deterioration of metals, particularly mild steel, and Seawater Corrosion Rates. Such a study will provide knowleige that can lead to improved techniques for protection of metals against the degrading effects of different natural environments. The Appendix presents an outline of a very broad program, within which practically any research and evaluation study on the deterioration effects of natural environments on materials can be placed. It is included to show the reader the part this particular literature survey and its logical extension to new laboratory research in areas not yet covered, can play in the total picture of material deterioration. This literature survey is concerned with the corrosion of metals end alloys submerged in sea water which is, of course, a very corrosive solution. Historically, the corrosion of materials in the marine environment has been of great importance. It is not surprising that many studies have been made to evaluate the performance of metals and alloys in various marine environments.  
    Materials for Seawater Pipeline Systems - Choice of material for seawater pipeline systems will depend upon the particular environmental situation, the nature of the application and the seawater corrosion rates of metals. It will be affected by availability, price and political considerations, as well as the life expectancy; previous performance in similar situations will also influence the decision. Of the materials considered in this paper, 90/10 copper-nickel is the one most widely used and most likely to fulfil the majority of requirements for the future  
    Sea Water System Design  
Cu-Ni is used for piping systems in a wide range of sizes. To obtain the high performance achievable from Cu-Ni, particular attention should be given to using alloy compositions which comply to international standards, maintaining flow velocities within accepted limits, avoiding areas of local turbulence and extended exposure to polluted water and ensuring good commissioning/start up practices.
       
    The corrosion behaviour of a low carbon steel in natural and synthetic seawaters: The corrosion behaviour of a low carbon steel and seawater corrosion rates of metlas, were investigated in natural seawater and various synthetic seawaters. It was found that the steel suffer corrosion nearly four times faster in a 3.5% NaCl solution than in natural seawater for an exposure time of 21 days. The corrosion rate after immersion in synthetic seawaters (ASTM D1141 and Marine Biological Laboratory seawater) is similar to the corrosion rate after immersion in natural seawater.
       
    Guidelines for the Use of Copper Alloys in Seawater  
    This paper discusses general guidelines that should be considered when choosing copper alloys for service in a marine environment. Topics discussed include: protective film formation, effects of velocity, seawater cavitation, effects of sulfides, marine biofouling, stress corrosion cracking, galling and sizing resistance, and use in desalination environments.  
    Effect of Composition and Microstructure on the Seawater Corrosion Resistance of Nickel-Aluminum Bronze  
       
    A Study of the Effects of Microstructure on the Seawater Jet Impingement Resistance of Nickel Aluminum Bronze  
       
    Ni stainless steel for marine environments, natural waters and brines  
       
     Ni containing materials for marine and related environments  
       
    Materials Selection for high reliabilitiy Copper Alloy Seawater Systems  
    Seawater systems are used by many industries such as shipping, offshore oil and gas production, power plants and coastal industrial plants. The main use of seawater is for cooling purposes but it is also used for fire-fighting, oil field water injection and for desalination plants.  
     Application of Copper-Nickel Alloy UNS C70600 for Seawater Service  
       
     The Application of Copper Nickel Alloys in Marine Systems. Copper Nickel Alloys in Desalination  Systems.    
    This paper reviews materials requirements for MSF plants and in particular the use of Cu-Ni alloys. Although heat exchanger tubing is the most important individual application, there are other important uses such as tubeplate, water boxes, piping and evaporator shells. The Cu-Nis are used for a wider range of components than any other material in MSF evaporators. The requirements of these components will be considered. Also some of the problems which have occurred in MSF plants will be described.  
    High Strength Corrosion Resistant Superalloy Fasteners, Springs, and Hardware for Marine Service  
       
    The Alloy Solution to Fastener Problems in the Marine Industry  
   

Vessels and equipment built for service in seawater and other marine environments must employ  fasteners that are resistant to corrosion by the aggressive service conditions to which they are exposed. Contractors and fabricators who build ships for the U.S. Navy must recognize this requirement, as a structure is no stronger or more reliable than its weakest member. Failure of a nut or bolt can have catastrophic results.

 
A High-Strength, Corrosion-Resistant Alloy Solves Fastener Problems in the Marine Industry                                               
       
    High-Strength Corrosion-Resistant Alloy 686 for Seawater Fastener Service  
       
    Experience with Copper Nickel Alloy Tubing, Water boxes and Piping in MSF Desalination Plants.  
    The first generation MSF desalination plants were built with copper alloy tubing and either bare or coated carbon steel chambers, water boxes and piping. The intended design life was 20 years. It soon became apparent that inleakage of air into the chambers allowed more corrosion of steel than could be tolerated. Steel in these applications began to be replaced with clad or solid copper alloy, and in some plants with clad or solid stainless steel. Currently many units use copper alloy throughout, although titanium tubing is used in some heat reject sections where sulfides or special considerations are overriding considerations.  
   

Innovative Nickel Alloys for Service in Critical Marine Applications

 
     
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