Notice of AGM

Dear Member

The Trustees and Council of the Institute would like to invite you to the 2019 Annual General Meeting (AGM) to be held on Thursday 31st October 2019 at the Council Chambers, Chamberlain Room, Council House, Victoria Square, Birmingham B1 1BB in conjunction with a half day Midlands Branch meeting, including technical corrosion presentations by corrosion experts from across Europe.

Midland Branch Meeting

13:00 – 13:25 Lunch served and time for networking

13:25 – 13:30 Welcome to the meeting and introduction of the Speakers

13:30 – 16:30 Presentations by industry experts

• Dr Markus Büchler, SGK, Switzerland – Mechanism of Cathodic Protection and its Implications on Criteria Including AC and DC Interference Conditions (Key Note Presentation – 1 hour)

15 min Coffee/Tea Break

• Trevor Osbourne, Deepwater Corrosion, UK – 50 Years of Offshore Corrosion Control Experience (30 min)

• Brian Wyatt, Corrosion Control, UK – Cathodic Protection of Offshore Renewable Energy Infrastructure (30 min)

15 min Coffee/Tea Break

• Chris Wozencroft, Corrosion Engineering, UK – Differences between CP for Pipelines, Marine and Civil Structures (30 min)

ICorr AGM

16:30 – 17:30 Annual General Meeting

AGM Agenda

1 Apologies for absence

2 Minutes of the previous AGM, November 2018

3 President’s report

4 Treasurer’s report

5 Elections

6 Any other business

The Trustees and members of Council will be available before the meeting to answer any questions you may have regarding the Institute and its future.

As in the case of the 2018 AGM, the Institute’s accounts and the minutes for the November 2018 AGM, will be available in advance via the ICorr website

Please examine them and the website in general as we would appreciate your feedback. The website continues to be influential in increasing our membership, influencing the perspective of non-members of ICorr and as a major means of communication with the membership.

Please confirm attendance (for lunch numbers) or apologies for absence, by e-mail to admin@icorr.org

We look forward to seeing you there.

Yours faithfully,

Dr Jane Lomas
Institute of Corrosion
Honorary Secretary

Text books on Corrosion/Corrosion Prevention

The Institute of Corrosion now have publications available for you to acquire Free of Charge upon requests, but postage will be charged of £5/edition within the UK. Some of the publication are quite old and may be out of print but it would be useful for research purposes etc.

The List of Corrosion and Corrosion Related Science and Technology book available are as follow;

Title Author Publisher ISBN No./Other Date
Corrosion Volumes 1 and 2 L L Shrier George Newnes 1965
Corrosion Guide 2nd Edition Erich Rabald USA Library of Congress Catalogue No.6719853 1968 Rare book Well used condition
Corrosion & Control 2nd edition Introduction to Corrosion Science and Engineering

 

H H Uhlig USA 0-471-85941-299-7  

1971

 

Corrosion and Protection of Metals 4 papers Institute of Metals Iliffe Press 1964
Corrosion Engineering Fontana and Greene McGraw Hill Library of Congress Catalogue No.

67-19901 21460

 

1967
An Engineers Approach to Corrosion C.F.Trigg Pitman and Sons Ltd.  

1952
Protective Painting of Iron and Steel Structures

1st and 2nd Editions

Fancutt and Hudson Chapman and Hall  

 

1957

1968

The complete list of publication can be found on https://www.icorr.org/souces-of-information/

For Copy of the books, please email to imma.mobbs@c-i-m.co.uk

From the Editor

From the Editor

I would also hope you are all enjoying the good weather, however as the President said, corrosion doesn’t stop. This is also the major maintenance painting season, but high temperatures and humidity are not the most suitable for blasting and painting activities, and I hope to cover this topic in the next issue of the magazine.
This month there are three articles on different topics in our industry. Brian Wyatt discusses the reliability of CP reference electrodes installed along a buried pipeline, and Bijan Kermani reviews the corrosion problems associated with the up-coming underground coal gasification process. Finally there is a case study highlighting a potential problem during hydrostatic pressure testing of a hydrocarbon storage tank.
Remember if you have any suggestions for future articles, or wish to submit a technical article, please contact me at brianpce@aol.com.
Brian Goldie, Consulting Editor

Painting Inspector

London Branch AGM

London Branch AGM

The branch AGM was held in March, which was followed by the “President’s talk”. The chairman, Paul Brook, reviewed the activities of the branch over the past year and noted that we had had excellent presentations. The Treasurer, Jim Glynn, announced that again our finances were in good shape, and that surplus monies will be returned to head office.  Paul then asked if any members wanted to join the committee, and confirmed that existing members were happy to serve for another year.   Paul also informed the meeting that the branch is close to completing a venue move from Imperial College, Kensington to the IMechE offices in Bird Cage Walk, Westminster.  This should be a great home for London branch future technical talks, which will restart following the summer recess in October, on the second Thursday of the month as usual. More details will be available on Institute web site in due course.

Gareth Hinds then presented his views on  the future of the Institute, and discussed ways we could adapt to changes, including environmental challenges, the rise of digital communications, and how to encourage more young engineers to join the Institute, and how to support them. This generated a lot of discussion and interesting suggestions.

The April meeting, the last of this season, was joint with The Welding Institute, and was given by Alan Denney of TWI, on the subject of “High tensile steel bolts and nuts: hydrogen embrittlement and failure in corrosive environments.’

Alan started by talking about the failure of threaded components used as shear connectors for earthquake resistance on the San Francisco Oakland Bay Bridge, which has been well documented in the technical press in the USA. These galvanised rods (in ASTM A354 grade BD steel) were pre-installed in 2008 in the supporting piers to the bridge superstructure which are above the water level. The superstructure was assembled and in 2013 the rod connectors were pre-tensioned hydraulically to 70% of UTS. A number of these suffered brittle failure, the published cause of which was that the rods failed due to hydrogen embrittlement arising from stress corrosion cracking.

Alan then proceeded to explain the conditions required for stress corrosion cracking, namely a combination of a susceptible material, a source of the hydrogen,  and tensile strength above a threshold value. He explained that the hydrogen could be either from internal sources in manufacture, or from an external source. The potential sources in manufacturing include hydrogen retained from steelmaking or hydrogen resulting from pickling of the components prior to coating. The external source would result from corrosion, the hydrogen being generated by the cathodic reaction. He explained that failures can occur in nuts as well as the bolts or threaded rods, and that in galvanized components
the zinc acts as a barrier to the outward diffusion of any trapped hydrogen.

Failures of structural bolts have a long history. Alan mentioned that his first encounter with bolts failing from hydrogen embrittlement was in the 1970s on a television transmission tower, with failures occurring in V grade and Y grade bolts on cold nights; the bolts being found on the ground in the morning, and his most recent experience of a failure was a few weeks before this talk. Apart from in transmission towers, such failures have also occurred in the recent past on prestigious building structures, and in offshore wind turbine towers. Recent occurrences known to Alan have been in large diameter high tensile bolts, generally in bolt grades 10.9 and above. He explained that there was a relationship with hardness of the fasteners (both bolt and nut), and covered recommendations in standards such as those published by DNV-GL for offshore wind turbine structures, which limit the highest strength grade to 10.9. He discussed the typical crack morphologies associated with hydrogen embrittlement and how the fracture surface could be ‘read’.

Alan then discussed some of the metallurgical aspects in bolt and nut materials and the recommendations and findings of work carried out by the Deutscher Schraubenverband (DSV) in relation to the desirable elements in the composition, and their proposed limits on chemical composition. He presented some findings from DSV on the failure thresholds in 10.9 bolts under ASTM F1624 test conditions with different coating types and then finished by summarising the findings:

n There is a risk of stress corrosion cracking with the use of fasteners with a UTS > 1000 N/mm2 in a corrosive or marine environment.

n The much-quoted guideline of 380 Hv as the threshold for stress corrosion cracking is not conservative, notably when there is a risk of external corrosion, even during temporary conditions.

n Controls which will improve their performance in marginal situations can be put in place for the bolt materials, their heat treatment and metallurgical controls, their coating systems and application, and their quality control and testing requirements .

However the main means of avoidance of SCC is to control the environment.

There was a lively question and answer session, with interesting contributions from the audience and the meeting was closed with a vote of thanks and a presentation to
the speaker.

ICATS News

We are pleased to announce the updated ICATS website has been launched. The address remains the same, http://www.icats-training.org/, but it is more user friendly and works much better with phones and tablets.

As you will be aware ICorr has moved to new offices at Corrosion House, 5 St Peters Gardens, Marefair, Northampton, NN1 1SX.  This new facility includes state of the art training facilities where most of our courses will now be presented.

As previously announced, ICATS has also introducing the new ICATS Managers/Engineers Industrial Coating Awareness course. This is a structured training module for managers, engineers, specifiers, and anyone that would benefit from an understanding of coating application.

The module covers:

  • Health and Safety in industrial painting
  • Preparation standards
  • Blasting and abrasives
  • Mechanical and manual preparation
  • Other surface preparation methods
  • Painting specification
  • Toolbox talks
  • Paint technology
  • Galvanic series
  • Convertible and non-convertible Coatings
  • Over-painting existing paint systems
  • Paint manufacturers
  • Paint failures
  • QC and QA

The Industrial Coating Applicator (ICA) faces many issues within industrial coatings, and it is recognised that this role can be misunderstood, leading to a potentially dangerous situation, or misinterpretation, and an expectation of what can or can’t be achieved.

These are one-day classroom-based presentations, and the first one is planned for 4th July in Northampton.

The next Supervisor course will be on 2nd and 3rd July, and will also be held in Northampton. Please contact the office, correx@icorr.org, phone 01604 438222, or check the ICATS website http://www.icats-training.org/ for dates and details of all courses.