Question regarding metal alloys used in aircraft..
On a.net some posts cover a potential (conditionel !)change in design for the Boeing 787 due to incompatibility of certain materials.
I understand that the mix of certain metal-alloys in conjunction with carbon-fibre or graphite –fibre can result in substantial generation of electricity. (That’s why many dentists take out older mercury-alloys teeth fillings and replace them with ceramic fillings...)
Aluminium being a less-noble metal than titanium seems to be subject to more corrosion-related electron-generation.
I would be interested to learn why this alloy-related “battery” effect was not earlier considered by both manufacturers ( one mentioned that Airbus had to use titan rather than steel or aluminium for the pods in order to counter this effect.)