Mg-alloy plate was fastened to Al 380 plate by Zn-plated steel bolt without washer. The above system was subjected to SAE J2334 corrosion test. After approximately 25 cycles I noticed signs of corrosion on the aluminum side instead of Mg-alloy.
I was told that this phenomenon is due to...
There are two plates (Mg alloy+A380) that are connected by RTV silicone. I need to dissolve the gasket in order to measure the weight loss of the plates.