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Minutes of the General Meeting held at Lloyd's Register of Shipping, on Wednesday, 9th October 2002.

  PERSONS PRESENT:

Clive Tuck (Chairman) - Meighs
Stuart Bond (Vice-Chairman) - TWI
Keith Stokes (Imm.Past Chairman) – DSTL
Chris Baxter (Committee) - AvestaPolarit
Phil Dent (Committee) - Bodycote
Bill Nimmo (Committee)– NPL
Barry Torrance (Committee) –Aish Technology
Jean Tuck (Secretariat) - MCC
John Fowler – Rolls Royce
Roger Francis – Weir

Jagath Mawella - MoD

David Medley - MetalTek Inc

Colin Murdock - Advantica

Peter Morgan – BAE Systems

Jan Przydatek - Lloyds Register
Robin Oakley – QinetiQ
Kevin Waterton – CAPCIS

Peter Webster - CDA

Robert Wood – Southampton University
Jian Z. Zhang – Lloyds Register

GUESTS:

Robert Edyvean – Sheffield University           Cliff Funnell - Funnel Associates 

Richard Thomas - Lloyds Register                  J.S. Nivarham - Lloyds Register

Chris Davis - Lloyds Register                         Jim Wilson - Lloyds Register

W. Wistance - Lloyds Register

The Chairman (Clive Tuck) opened the meeting.

1. APOLOGIES  

Patrick Hall (Committee)– MoD
David Howarth (Committee) – Lloyds Register
Chris Amon – Wood Group (guest)

Henrik Andersen - Amerada Hess

Colin Bowley - Winn & Coales (guest)
Ian Bradley – OIS
Richie Brown – BAE Systems

N. Cooper - BAE Systems

Robin Jacob – Corrosion Consultancy
Wayne Pearce – BNFL Magnox
Len Phillips – Weir Pumps
Carol Powell - CDA
Manfred Jasner - KME
Anne Neville – Heriot Watt University


2. MINUTES OF LAST MEETING (
3 JULY 2002) and MATTERS ARISING

 These were accepted as a true record of that meeting, with no matters arising.

 3. FINANCIAL STATUS & FORTHCOMING MEETINGS

 ·        Jean Tuck (Secretariat) reported that Club Membership currently stands at 29.   There were 2 members who had yet to pay their subscriptions for 2002.

·        The Finances show that income since 1st July was £4,349 (membership fees) and expenditure for the same period was  £3,475 (covering Secretariat expenses, Metadex search for July, meeting expenses for July, and internet fees).  This gave a bank balance of  £24,199.

·        A list of forthcoming Technical Presentations was shown, attention being drawn to the April Aberdeen meeting, which once again would be combined with ICorr. Aberdeen.  The next Club meeting would be the AGM at Lloyds Register on January 22nd 2003.

·    Members were informed that Lloyd's List Events were planning a conference on Shipping in Spring 2003, which would include many corrosion issues.  They had contacted the Club with a view to the Club's involvement in this project.  The Committee had accepted this proposal, and members who would be interested in submitting presentations were invited to contact the Secretariat for more details.

4TECHNICAL PRESENTATIONS 

Click for abstracts

4.1  'On the implications of European Framework Programme Six for marine corrosion projects', Cliff Funnell (Cliff Funnell Associates)


4.2 'Stress Corrosion Cracking of Precipitation-hardened Stainless Steel Bolting',
P. Dent (Bodycote Materials) and Roger Francis (Weir Material Services)

5.  OPEN FORUM

· Dave Medley (MetalTek Inc) – new overseas member.  Dave gave a short presentation on MetalTek, its structure and operations.  He described various recent projects and their methodology.


· Roger Francis  (Weir) reported on the EFC MARINE CORROSION WORKING PARTY, from a meeting held at ICC, Granada,  Spain in Sept 2002.  Current activities are:

 

1.   REVIEW OF CORROSION OF COPPER AND ALUMINIUM ALLOYS IN SEAWATER.  (1979 – 2001)

 

2.   CREVCORR  Development of better standardized crevice corrosion test method.

 

3.  EUROCORR 2003, to be held in Budapest, Sept 28 – Oct 2, 2003.

         Marine Corrosion Session will concentrate on Cathodic Protection.  The Session will cover hydrogen embrittlement and avoidance, CP design and monitoring and testing.  Papers on this subject are invited.  Deadline for title and abstract is January 20th 2003.  Notify the Conference Technical Secretary at:  eurocorr@chemres.hu or visit the website at: www.chemres.hu/eurocorr.

 

4.       EUROCORR 2004, to be held in Nice, 12 – 17 September, 2004.

The marine session will concentrate on copper and aluminium alloys to coincide with the publication of the review.  The call for papers will be issued at Eurocorr 2003 in Budapest.

 

5.       EFC/ MCC COOPERATION  Bard Espelid, chairman of the marine corrosion working party suggested that closer cooperation between the working party and the MCC would be of general benefit.   The EFC is about to launch its website and the marine working party will have a page.  Linking the two sites is a first step.  Appointing an EFC liaison would be useful, preferably someone who can attend EFC meetings.  

 

· John Fowler (Rolls Royce) - raised the problem of connecting straps to a diode between copper and steel.  Currently a copper strap connects the diode to the copper end and a steel strap connects the diode to the steel.  The complete system is under cathodic protection.  The question is – if the diode is switched off, what strapping would be required to limit galvanic corrosion?  Suggestions were:

 

o       stainless steel to connect between copper and diode, leaving steel strap as it is

o       copper to connect between diode and steel, coating the connection point copper/steel and leaving other copper strap as it is

o       leaving the connections as they are, but coating the copper strap

 

· Stuart Bond (TWI)  raised two points: 

o       Increasingly there are concerns about the possibility of external chloride induced corrosion of duplex and superduplex stainless steels operating at elevated temperature topside and subsea. Protection against pitting, crevice corrosion and SCC is difficult with organic coatings and TWI has launched a JIP to assess the use of thermally sprayed aluminium (TSA) as a protective coating system using a range of spraying technologies.

o       There are increasing concerns over the protection of storage tanks in FPSOs against corrosion occurring in the tank bottom due to water settlement. The anodes placed in the tanks can become coated in heavy deposits and likely reduced efficiency. In addition the cyclic operation can introduce some oxygen, temperature variation plus erosion issues in some cases and the cost of repair is high. TWI is about to launch a JIP on the use of thermally sprayed coatings to protect the tanks against such corrosion. Input from FPSO owners and operators is presently being sought.

 

· Keith Stokes (DSTL) – raised the problem of looking at the performance of copper alloys in different seawaters throughout the world, with respect to the effects of sulphate reducing bacteria.  He wondered what methodologies and/or good practices there were for studying these.   Robert Edyvean (Sheffield University) indicated that there was a body of published material on freshwater systems, but didn’t think that there was a standard approach.

 

6.  TECHNICAL PRESENTATIONS (continued)

6.1  'Experimental Impressed Current Anode Design', Barry Torrance (Aish Technologies)

6.2  'Marine Microbiological Corrosion - are we getting to the bottom of it?', Bob Edyvean (Sheffield University)

The Chairman closed the meeting at approx. 3:45 pm  


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