Clive Tuck (Chairman) - Meighs
Jagath Mawella - MoD
David Medley - MetalTek Inc
Colin Murdock - Advantica
Peter Morgan BAE Systems
Jan Przydatek - Lloyds Register
Peter Webster - CDA
Robert Wood Southampton University
Edyvean Sheffield University Cliff Funnell - Funnel Associates
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.
Patrick Hall (Committee) MoD
Henrik Andersen - Amerada Hess
Bowley - Winn & Coales (guest)
N. Cooper - BAE Systems
Jacob Corrosion Consultancy
and MATTERS ARISING
These were accepted as a true record of that meeting, with no matters arising.
· 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.
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)
· 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:
REVIEW OF CORROSION OF COPPER AND ALUMINIUM ALLOYS IN SEAWATER. (1979 2001)
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:
firstname.lastname@example.org or visit the website at: www.chemres.hu/eurocorr.
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
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 didnt think that there was a standard approach.
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)
Chairman closed the meeting at approx. 3:45 pm
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