Galvanic Corrosion

[jeremycarriveau]

Hey Guys

Dont know if anybody else has brought this up but just thought I would ask. My grandpa always told me that when you mix metals (when different metals come into contact) that the weaker one will rust. I never really understood why just always listened to Grandpa. Well I learned this last night while doing my homework (see attachment). This sort of makes thinge clearer.

Anyway, my question is because of Galvanic Corrosion, would it be better not to use different metals together so should the pins and washers we use be made of either carbon steel, or stainless? Why do we use nickel or brass? Ive seen that some here do use stainless rods/washers, do they corrode any slower.

I know that when I take razors apart you can really see this the razor is typically shiny silver color and washers are a dull brown looking color.