The Use of EIS as a Predictive Tool for Coating Lifetime
 By
Dustin Traylor – Axalta Global Product Manager
Dr Stephen Drew – Axalta EMEA Coatings Leader
This presentation will evaluate the use of Electro Chemical Impedance Spectroscopy (EIC) to assess the adhesive strength of FBE to the steel of transmission pipe and its use as a predictive tool to determine the lifetime of FBE coating systems
The technique has now been adopted by Aramco and Chevron and gaining credibility as a useful tool in the pipeline market.
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 Venue:        Imperial College, Skempton Building, London SW7 2BB
18.00Â Doors Open – Networking
18:30Â Presentation
21.00Â Close
For further information please contact
icorrlondon@gmail.com or george.winning@clariant.com
The 29th Institute of Corrosion Lunch at The Royal Overseas League, was another huge success with 177 people attending the event in Mayfair London.
 Guests started to arrive at 11.30 for a pre-dinner drink and were seated by 12.30 for the first of two acts by The Sirens a singing quartet. It was really well received and set the scene for the afternoon. The meal was excellent and congratulations to the ROSL who never disappoint. After lunch the Chair of London Branch thanked everyone for their continued support of The Institute and in particular London Branch, the organising committee and the Branch Committee who continue to drive the Institute in London forward.
The 2 new initiatives were mentioned; Young Engineer Training Program and Route to Chartered Status which start in January 2018, along with the two new training programs; Fundamentals of Corrosion and the CP Training Program.
The President addressed the guests to a rapturous applause once again thanking everyone for their support and explaining the Institute has exciting plans that will start in Q1 2018.
After the raffle two guests were honoured with a small gift following their highly acclaimed Tallow Chandler award for their work in Materials and Corrosion, a tremendous achievement by Charlotte Vie in 2016 and Simon Bowcock in 2017.
The timing for the event this year was slightly different allowing guests to socialise and network at the ROSL until 7.00pm which appeared to be extremely popular; lots of notes being taken and exchanging of business cards.
Thanks again to all those that assisted in the organisation of the event and we look forward to another exciting event in December 2018
To see the complete newsletter please click link below;
Stable pitting is a precursor to sulphide stress corrosion cracking (SSCC), which is one of the main causes of failure of stainless steel pipelines used in sour Oil and Gas production. Despite this, the underlying mechanism governing the growth of such pits is poorly understood, and hence materials selection for sour service is dependent upon costly and time consuming environmental exposure and SSCC test programmes.
In this study we investigate the role of hydrogen sulphide (H2S) in pit propagation as a first step towards the development of accelerated test methods for SSCC resistance. Novel electrochemical techniques are employed to determine the relationship between bulk solution chemistry and the critical pit chemistry required to induce stable pitting in sour environments.
Electrochemical measurements are correlated with results obtained from standard SSCC tests and are rationalised in terms of the balance between H2S diffusion through the pit mouth, H2S consumption within the pit and the role of the external cathode.
The implications for more informed and cost-effective materials selection are discussed.
The Marcel Pourbaix Award was presented to Christofer Leygraf (KTH Royal Institute of Technology, Sweden), who delivered a plenary talk on ‘Atmospheric corrosion: current challenges in an evolving research field’. The development of simplified but practically relevant model systems, along with international exposure tests and laboratory experiments aided by analytical and technical advancements has greatly increased our understanding of atmospheric corrosion. The speaker sought to highlight present and future challenges.
Prizes for the best posters were also presented, with first prize going to Alexander Lutz (Vrije Universiteit Brussel, Belgium) for ‘Local electrochemical study of ternary Zn–Fe–Mo alloy coatings on carbon steel’. The second prize going to Beatriz Mingo (The University of Manchester, U.K.) for ‘Active Functionalisation of ceramic coatings: incorporation of loaded nanotubes’, The plenary lecture on the Wednesday was ‘Continuum and atomic scale simulation of stress corrosion cracking and causality’ by Tetsuo Shoji (Tohoku University, Japan). The speaker described the application of stress and strain analysis by theoretical elastic-plastic stress field analysis and FEM, quasi-continuum (FEM and molecular dynamics) and Quantum Chemical Molecular Dynamics to examine the role of stress and strain in SCC in relation to the chemical and physical properties of materials.
The conference Gala Dinner took place on the Wednesday evening at the riverside Zofin Palace, with an extensive buffet of Czech specialities and drinks, presented in the numerous rooms of this impressive building including an upstairs and gallery. The multiple levels made it possible for a choice of two parallel entertainments, the spacious upstairs ballroom being entertained by the Havelka Sisters and their Orchestra with traditional light jazz and swing music, while the downstairs dance room was rocked by the Beatles Revival (Brouci Band) with their repertoire of Beatles hits.
On Thursday, the plenary lecture was given by John R. Scully (University of Virginia, USA) on ‘Needs, gaps and opportunities for better design of corrosion resistant materials’. The speaker cited a recent National Academy study suggesting that an ideal corrosion-resistant alloy might well be formulated in the future using integrated computational materials design. This presents the challenge of connecting the attribute-defined features of an alloy, with the subsequent properties, by applying relevant scientific principles. Significant scientific needs, gaps and opportunities must be met in order to improve this theory-based design approach
Next year the EUROCORR congress will be held from 9th to 13th September at the ICE Kraków congress centre, Poland.
The above is an edited version of a longer report that will appear in the first issue of 2018 of the journal Corrosion Engineering Science and Technology. Thanks are due to Ruth Bingham for supplying the two photographs.
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