Advanced Hex Chrome-free Surface Technologies for Corrosion Protection

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Hexavalent chromates set the benchmark for corrosion protection for a number of industries and they areessential for the safety of current Aerospace products. However, EU REACH legislation has tightly restricted thesale and use of these chemical substances which creates a business continuity threat to the UK and EEA supplychains. One key technology is chromate conversion coatings (CCC) that are essential for the protection ofaluminium components. While there are a number of proposed alternatives on the market, previous work hasidentified these to be unsuitable.A consortium has been brought together in order to develop and industrialise CCC alternatives to ensure thatthey meet stringent requirements set by the Aerospace industry. The lifetimes of these hex-chrometechnologies will be measured using advanced methodology so that they can be safely introduced intoAerospace products. Furthermore, the new technologies will be available for the entire UK supply chain to use,including for other industries such as medical, automotive, oil and gas.