Chapter 17 - Corrosion Flashcards
1
Q
How does corrosion occur in metals?
A
Either dissolution or a film (oxide) forming
2
Q
How does corrosion occur in polymers?
A
Dissolution (in solvent), absorption and swelling (in solvent), or structural change
3
Q
What is an oxidation agent?
A
The metal that causes another metal lose electrons (the metal that undergoes reduction)
4
Q
What is a reduction agent?
A
The metal that causes another metal to gain electrons (the metal that undergoes oxidation)
5
Q
Which of oxidation and reduction happens at the anode?
A
oxidation
6
Q
What occurs at the cathode?
A
Reduction
7
Q
What is passivity?
A
The loss of chemical reactivity
8
Q
What is CPR (non-medical)
A
Corrosive penetration rate
