Materials Science / Structure of Matter Flashcards
1
Q
What is the basic chemical reaction for an anode?
A
M^0->M^n+ + ne-
2
Q
What are the possible chemical reactions for the cathode?
A
0.5O2+2e-+H2O -> 2OH-
0.5O2+2e-+2H3O^+ -> 3H2O
2e-+2H3O^+->2H2O+H2
3
Q
Which metal becomes the anode in a corrosion cell?
A
Less electronegative / more electropositive metal
4
Q
What is cold working?
A
Plastic deformation below recrystallization temperature.
5
Q
What is plastic deformation?
A
Permanent change to material shape due to force beyond elastic limit.
6
Q
How does cold working affect metal properties?
A
Decreases ductility and increases strength
7
Q
A
