Aluminum alloys are used extensively in aircraft due to their high strength-to-weight ratio. A main drawback is that their microstructure is sensitive to corrosion, which generates pits for example. Although corrosion damage can be detected by non-destructive testing methods, such methods are limited in their ability to identify corrosion initiation and the mechanism behind the defect. As a result, corrective actions are only undertaken when corrosion becomes evident (cracks or loss of thickness).

The introduction of fuel cells for surface vehicles requires a review of stack concepts to make them lighter, more compact and more durable. These objectives require, among other things, the development of new materials dedicated to the bipolar plate. The MATEIS (Materials: Engineering and Science) laboratory has been asked to work on the conceptualisation and performance evaluation of these new materials. To do this, it is using its expertise in surface engineering, corrosion science and electrochemical measurement.