Search
Filters
Close

Individual Conference Papers

View as
Sort by
Display per page
Picture for The Sensitisation Behaviour of Alloy UNS N08825 After Heat Treatment as Used in Clad Materials
Available for download

The Sensitisation Behaviour of Alloy UNS N08825 After Heat Treatment as Used in Clad Materials

Product Number: 51317--9459-SG
ISBN: 9459 2017 CP
Author: Helena Alves
Publication Date: 2017
$20.00

The aim of this paper is to present recent standard test corrosion data obtained in laboratory for alloy UNS N08825 after post weld heat treatment in comparison with as delivered (soft annealed) material.

 

Picture for The Ultrasonically Induced Cavitation Erosion of Fiber Glass Reinforced Epoxy and Nodular Cast Iron (NCI) in Seawater
Available for download

The Ultrasonically Induced Cavitation Erosion of Fiber Glass Reinforced Epoxy and Nodular Cast Iron (NCI) in Seawater

Product Number: 51319-13296-SG
Author: Abdul Hameed Al-Hashem
Publication Date: 2019
$20.00
Picture for 11290 The use of Secondary Ion Mass Spectrometry (SIMS) in Quality Control
Available for download

The use of Secondary Ion Mass Spectrometry (SIMS) in Quality Control of Electroplated and Baked High-Strength Steels

Product Number: 51300-11290-SG
ISBN: 2011 11290 CP
Author: Noam Eliaz, Elizabeta Kossoy and Gil Shemesh
Publication Date: 2011
$20.00
Picture for Thermally Sprayed Coatings for Corrosion Protection of Offshore Structures Operating in Submerged and Splash Zone Conditions
Available for download

Thermally Sprayed Coatings for Corrosion Protection of Offshore Structures Operating in Submerged and Splash Zone Conditions

Product Number: 51319-12808-SG
Author: Berenika Syrek - Gerstenkorn
Publication Date: 2019
$20.00

Corrosion protection of large structures such us wind turbines or offshore platforms operating in corrosive seawater environment is usually provided by cathodic protection (CP) and/or protective coatings. However those methods have some limitations. Organic coatings without CP can provide protection to steel substrate only when they remain intact whereas sacrificial anodes can considerably increase the overall mass of the protected structure and have to be replaced periodically. Moreover sacrificial anodes are only effective under submerged conditions and don’t protect the structure under alternating wetting and drying condition so-called “splash zone” which is particularly corrosive environment due to constant splashing of highly aerated seawater UV radiation and increased concentration of seawater constituents during drying. Furthermore confined volume of electrolyte easy access to oxygen and atmospheric pollutant deposited on the metals’ surface lead to more severe corrosion in this region than in the submerged zone.An alternative corrosion mitigation method is application of thermally sprayed metallic coatings such as thermally sprayed aluminium (TSA). TSA affords long-term and maintenance-free protection to steel substrate in two ways. Firstly when intact it acts as a barrier to the corrosive environment and secondly it provides sacrificial protection by working as an evenly distributed anode which preserves steel in case of a damage of a coating. Moreover large operating temperature range high resistance to mechanical damage and low corrosion rate in ocean water make it a perfect corrosion prevention method for offshore applications.One of the characteristic features of thermally sprayed coatings is porosity which is filled with corrosion products when the corrosion progresses. To delay the self-corrosion of the protective coating application of sealers is recommended.In this work the behaviour of several arc-sprayed metal coatings is investigated under full artificial seawater (ASTM D1141) immersion and compared with simulated splash zone conditions under droplets of artificial seawater. Effectiveness of TSA coatings is evaluated using electrochemical techniques and corrosion products are examined. The effect of novel sealers containing nanomaterials is also assessed.