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Minutes of the General Meeting held at The Palm Court Hotel, Aberdeen, in conjunction with ICorr, Aberdeen branch, on Tuesday, 12th April 2011.  

  PERSONS PRESENT:

Committee
Phil Dent (MCF Vice-Chairman) – Exova Corrosion Centre
Ian Hamilton – Aker Solutions
Robin Jacob - Corrosion Consultancy
Gary Masters – E.ON New Build & Technology
Jean Tuck – MCF Secretariat

Members & Guests
Alireza Aghasadeghi - Lloyd’s Register EMEA
Adesiji Anjorin - Oceaneering International Services Ltd (ICorr)
David Armstrong - Lloyd’s Register EMEA
Ahmed Jawwad Ali – Exova Aberdeen
Charlie Barraclough – Commtech Associates
Richard Baily – Impalloy Ltd
David Baxter – Atkins Oil & Gas (ICorr)
Frances Blackburn – Maersk FPSOs UK Ltd (ICorr)
John Baynham – CM BEASY
Adrian Bowles – QinetiQ

     Glenn Byrne – Rolled Alloys
John Cleminson – Langley Alloys
Roger Francis – Rolled Alloys
Tim Froome – CM BEASY
Tony Gerrard – BAC Corrosion Control
Chris Googan – Anticorrosion Engineering Ltd (ICorr)
David Hillis – Total E&P UK
Cliff McGuire – Exova Edinburgh
Ali Morshed – WGIM (guest speaker)
Kennedy Nwokonta - Lloyd’s Register EMEA
Stanley Nwaonu – Impalloy Ltd
Stephanie Okoye - CAN (Offshore) Ltd (ICorr)
Steve Paterson - Shell
Richard Perkins – Aish Technologies Limited
Tim Queen – Deepwater EU Ltd
Olivier Ravier - Exova Daventry
Alistair Seton – Subsea7 (ICorr)
Chris Wheatley – CJ Wiretech
Edward Whyte - Lloyd’s Register EMEA
Paul Wood - CAPCIS

APOLOGIES  

Peter Cutler – NI
Steve Ellis - Cathelco
Graham Hill – ECHA
Dennis Greaves – MoD
Clive Harrington – Deepwater EU Ltd
Ben Hooker (Committee) – Babcock
Christos Kapsalis – KME Germany AG & Co KG
Chi Lee – TWI
Jagath Mawella - MoD
Robin Oakley (Committee) – QinetiQ
 

Matthew Peet (Committee) – CAPCIS
Carol Powell – CDA
Darren Reid-Hutchings – EDF Energy
Bernd Sagebiel – KME Germany AG & Co KG
Keith Stokes - DSTL
Clive Tuck (Committee) – Lloyd’s Register> EMEA
Julian Wharton (Committee) – Southampton University
Mike Wilson – BAE Systems
Brian Wyatt - Corrosion Control

The MCF Vice-Chairman, Phil Dent (Exova), opened the meeting.  

1.  TECHNICAL PRESENTATIONS 

1.1   ‘Corrosion Fatigue Testing of Tensile Wires for Flexible Pipelines’, Paul Wood, CAPCIS

1.2   Optimization of Retrofit CP Systems using Mathematical Modeling by Evaluating Performance of Remnant and Retrofit CP Systems, Taking into Account Long-term Polarization Effects’, John Baynham, BEASY

1.3   Is There Value in Translating New Wireless Corrosion Monitoring Technologies to Upstream Oil and Gas?’, Adrian Bowles, QinetiQ

2.  OPEN FORUM

2.1      Richard Perkins (Aish Technologies Ltd) showed a photograph of a large steel panel which had been exposed to natural seawater for a relatively short period of time. The exposed surface, which was originally clean rolled steel, exhibited an unusual corrosion pattern.. Richard asked if anyone had seen similar behavior and could give some ideas on the possible reason for the non-uniform attack. Chris Googan (Anticorrosion Engineering Ltd) suggested that the pattern may be related to the nature of the initial biofilms, although he did not think it was related to microbial corrosion. The pattern was too coarse to be related to the microstructure, although Cliff McGuire (Exova) suggested that it could be related to the macrostructure and several people suggested that cross sections taken through the plate may give some further clues.

2.2           Phil Dent (Exova) asked if anyone new of problems and literature relating to the autogenous welding of duplex stainless steel with particular respect to the chloride stress cracking resistance and also the general properties. Roger Francis (Rolled Alloys) replied that it isn’t widely used in industry and has been limited to the single pass welding of relatively thin products, since the problem is retaining the nitrogen in the weld metal. Therefore careful control of the shielding gas composition is required to prevent the loss of nitrogen and ensure the correct phase balance is achieved. In particular the ferrite content can increase leading to inferior impact and corrosion resistance. Roger suggest the book by Robert N. Gunn, titled “Duplex Stainless Steels, Microstructure, Properties and Applications”, Abington Publishing, 1997 could be a useful reference. Glenn Burn (Rolled Alloys) added that autogenous welding of thin walled tubing is commonly used in the USA.

3.  TECHNICAL PRESENTATIONS (part 2)

3.1   An Introduction to Asset Corrosion Management in the (Offshore) Oil Industry’,Ali Morshed, Wood Group Integrity Management

3.2   QA/QC Tools for Duplex Stainless Steels – How to Get What You Ordered’, Roger Francis, Rolled Alloys

The Chairman closed the meeting at approx. 4:30 pm  

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The meeting was followed by a meeting of ICorr, Aberdeen branch:-

‘Cracks and their Causes’, Lammert Branstma, Materials Engineering Ltd


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