CORRSION IN METAL

Question 1

What is a galavanic reaction

Answer 1

usually occurs when two or more dissimilar metals are in contact and there is no protective layer inbetween. Shortening life span of material

Question 2

Anodixed index shows that the __( a )___ metals are from each other the higher the corrosion risk between them in favor of the more __( b )__ than aluminum

Answer 2

a. further away
b. cathodic

Anodixed index shows that the __( a. further away )___ metals are from each other the higher the corrosion risk between them in favor of the more __(b. cathodic)__ than aluminum

Question 3

More anodic (corroded) to more cathodic (protected)

Answer 3

Magnesium (Most Anodic CORRODED)
Zinc
Aluminum
Steel
Lead
Tin
Nickel
Brass
Bronze
Copper
Stainless Steel
Graphite (Most Cathodic PROTECTED)