The Tiger Stripe effect observed when MIC occurs at welds of stainless steel vessels containing stagnant water L.H. Boulton, Nickel Institute Consultant, New Zealand It has been observed over years that an unusual surface morphology appears on stainless steel surfaces at circumferential welds in vessels (commonly austenitic grades 304 or 316) if microbiologically influenced corrosion...
31st July 2012Protective Coatings – An Introduction Emmanuel Pimentel Painting is the application of a liquid coating to a metal to protect it. It is considered the oldest method of corrosion control and certainly the most recognisable to people outside the corrosion protection field. Painting’s simple premise – the application of a protective film to protect the underlying metal...
31st July 2012Pipeline external corrosion analysis using a 3D laser scanner Pierre-Hugues Allard, Creaform Pipeline operators have to inspect their pipeline network directly or through NDT inspection service companies. In-line inspection (ILI) tools allow the identification of zones with critical external corrosion by magnetic flux leakage (MFL) or ultrasonic (UT) methods. The code specifies that a prove-up...
31st July 2012Restoring Timeless Beauty for Future Generations Savcor has recently completed the meticulous restoration works for the facade of His Majesty’s Theatre in Perth, Western Australia. As described below, this heritage icon is over 100 years old and can proudly lay claim to being one of the greatest examples of Edwardian era architecture in the country.
31st July 2011Offshore Cathodic Protection Anode Retrofitting SVT Engineering Consultants (SVT), working in a challenging marine environment, designed a cathodic protection solution to a potentially expensive problem. PTTEP Australasia (formerly Coogee Resources) until the end of 2010 operated two Floating Production, Storage and Offload Facilities (FPSOs) located in the Timor Sea. The Challis Venture and the Jabiru Venture were...
31st July 2011Next generation metallic coatings David Harrison, OneSteel Australian Tube Mills Hot-dip coatings are widely used for the corrosion protection of steel, with zinc based alloys providing both barrier and galvanic protection to the steel substrate.
31st July 2011Extending the Life of a Wharf Asset for PNG Ports Extending asset life can make a real difference to the bottom line. Using state-of-the-art technology and innovative solutions means Advanced Materials and Strategic Asset Management specialists can extend the life of existing assets and find ways to add years to the life of new ones.
31st July 2011Corrosion of Building Assets – Problems and Prevention L.H. Boulton, Les Boulton & Associates Ltd. Auckland, New Zealand Corrosion of building services is sometimes attributed to cost-cutting by the building owner, the constructor, or the building services designer. Lack of proper maintenance is another contributing factor to building corrosion problems. Inadequate weather tightness of the cladding...
31st July 2011