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Minutes of the General Meeting held at The Novotel, Birmingham International, on Wednesday, 8th July 2009.

  PERSONS PRESENT:

Robin Oakley (MCF Chairman) – QinetiQ
Phil Dent (Vice-Chairman) – Exova
Robin Jacob (committee) - Corrosion Consultancy
Matthew Peet (committee) – CAPCIS
Clive Tuck (committee) – Lloyd's Register
Jean Tuck – MCF Secretariat
Tim Armitt – Lavender NDT (speaker)
John Baynham – CM BEASY
Philip Blood – Langley Alloys
Steve Ellis - Corrintec
Roger Francis – RA Materials
Dennis Greaves - UWS, MoD
Jing Li – Clyde Pumps
Gary Masters – E.ON Engineering Ltd (guest)
Peter Morgan – BAE Systems
Aneel Mumtaz - Corrintec
Stanley Nwaonu - Impalloy
Shiladitya Paul - TWI
Carol Powell – CDA
Darren Reid-Hutchings – British Energy
Bernd Sagebiel – KME Germany AG &  Co KG
Keith Stokes – DSTL
Stephen Turnock - University of Southampton
Matthew Walters – Exova/Birmingham University
Chris Wheatley – CJ Wiretech Ltd
Mike Wilson – BAE Systems Submarine Solutions
Brian Wyatt – Corrosion Control

APOLOGIES  

Ben Hooker (committee) - Babcock Marine
Barry Torrance (committee) – Aish Technologies
Julian Wharton (committee) – Southampton University
Charlie Barraclough – Commtech Associates
Andrew Bell – Babcock Marine
Peter Cutler - NI
Ross Fielding – Impalloy
John Fowler – Rolls Royce
Tony Gerrard – BAC Corrosion Control Ltd
Ian Hamilton – Aker Solutions
David Hillis – Total E&P UK
Jagath Mawella – SSG, MoD
Graham Muff – A&E Systems Ltd (guest)
Jim Wilson – LR EMEA
Robert Wood – University of Southampton

The Chairman (Robin Oakley) opened the meeting.  

1.   MCF NEWS

This was postponed until after lunch.

2.   TECHNICAL PRESENTATIONS (part 1):  

2.1    ‘ Corrosion of Tidal Turbines’, Stephen Turnock, University of Southampton

2.2     ‘Detection of Corrosion & Material Degradation Using Ultrasonic Pulse Echo, TOFD and Phased Array Applications’, Tim Armitt, Lavender NDT 

 

3.   OPEN FORUM

3.1.    Phil Dent (Exova) raised a question about the maximum safe operating temperature for superduplex stainless steels which will avoid the occurrence of ‘475°C embrittlement’ through the precipitation of the α’ phase. This was answered by Roger Francis, from his experience with ZERON 100 (UNS S32760).  He suggested that the highest design temperature for long term operation should be 280°C.  However, running at a higher temperature did not necessarily cause failures.  He related an example he had heard in an informal discussion, where a superduplex pipe had been operated for 8 years in the temperature range 320-330°C with no apparent effect.  However, when the pipe was removed in a maintenance operation, it was accidentally dropped and it shattered into several pieces!

3.2.   Clive Tuck (Lloyd’s Register) asked if anyone knew of a suitable person who was an expert on the subject of boiler corrosion and suitable water treatment methods which could be used for the prevention of such corrosion.  No names were forthcoming at the meeting

3.3.   Roger Francis (RA Materials) asked whether there was any experience of 70/30 copper-nickel for instrumentation tubing in a Zeron 100 seawater pipe line.  The consensus was that it would be a problem.  Some practical examples suggested were Zeron to NAB (BP Andrew) and racing boat fittings.

MCF NEWS 

4.    TECHNICAL PRESENTATIONS  (part 2):  

4.1    ‘An Interesting Corrosion Problem with Titanium’, Peter Morgan, BAE Systems

4.2     ‘Cathodic Protection of the Thames Barrier’, Brian Wyatt, Corrosion Control

The Chairman closed the meeting at approx. 3:30 pm  

Note: Several of these presentations are available in pdf format to staff of MCF member companies.  Please contact the Secretariat for details.


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