What is aqueous corrosion or galvanic corrosion?
According to this .pdf summary on galvanic corrosion
- galvanique corrosion.png (103.36 KiB) Viewed 8647 times
- galvanique corrosion_2.png (91.78 KiB) Viewed 8647 times
According to wiki:
Corrosion refers to the deterioration of a manufactured object by the environment. The best-known examples are the chemical alterations of metals in water - with or without oxygen - such as the rusting of iron and steel, or the formation of verdigris on copper and its alloys (bronze, brass). These chemical alterations are grouped together under the term aqueous corrosion. They are due to effects of several kinds: dissolution of metals in water, appearance of electrochemical cells, existence of concentration gradients, differential aeration or pitting. Overall, aqueous corrosion is a phenomenon with a very significant economic impact, requiring a wide variety of means of protecting metals. https://fr.wikipedia.org/wiki/Corrosion_aqueuse
Table of the main metals or alloys (especially aluminum):