Creep has negative conations in many walks of life. It is no different in the field of Coil Coated metal. Creep describes what happens when corrosive materials insidiously force their way between the two halves of the paint metal interface. The process starts from the cut edge of a piece of painted metal advancing inwards at a rate determined by the strength of adhesion, the anticorrosive weaponry lined up against it and of course the strength of the conditions pushing the chemicals forward.
Chromate Free Primers for Galvalume suffer badly from edge corrosion. Some people believe that this slows down after a period of time and coatings on substrates such as Galfan and HDG ‘catch up’ on the extent of creep from the cut edge after a period of time (5 years) but at Beckers we have not seen this. We would like to understand the differences between edge corrosion on galvalume and the other 2 substrates. To this end we would like to apply the electrochemical methodology; Scanning Vibrating Electrode Technique (SVET) to a small selection of primers plus topcoats applied to the above mentioned substrates.
The aim of the project is to characterise the cut edge corrosion that takes place on Galvalume, Galfan and Hot Dip Galvanised Steel using electro-chemical techniques. The panels will be coated with chromate containing and chromate free primers plus topcoats. A maximum of 2 different anti-corrosive pigments will be tried. Any differences will be investigated and the parameters that impact on the speed of cut edge corrosion will be addressed in an effort to slow down the rate of edge corrosion. Correlations between electrochemical testing, Salt Spray and Exterior exposures will be attempted.
This project would be suitable for someone with a degree in chemistry, physics, or materials engineering.Sponsoring Company Beckers
Candidates should hold an Engineering or Physical Sciences degree with a minimum classification level of 2:1 or equivalent relevant experience. This project would be suitable for someone with a degree in chemistry, physics, or materials engineering.
Our funders require applicants to also meet the following eligibility criteria:
Further information regarding eligibility criteria can be found at: http://www.materials-academy.co.uk/eligibility
The Athena SWAN Charter recognises work undertaken by institutions to advance gender equality. The College of Engineering is an Athena SWAN bronze award holder and is committed to addressing unequal gender representation.Funding
The studentship covers the full cost of UK/EU tuition fees, plus a tax free stipend of £20,000 p.a.Closing Date 30 April 2018