Chapter 10 Flashcards
What two mechanism cause degradation? Give definition of the two?
Dissolution: Material loss due to the corrosions and subsequent scaling
Oxidation: formation of oxides on the material results in the formation of the protective material.
What drives corrosion in electrons?
For metals, corrosion/oxidation is driven by the transfer of electrons.
If____(fill in the blank ) can be stopped or diverted you can control corrosion
Electrons
what is corrosion?
corrosion is defined as destructive and intestinal attack on it is electrochemical and ordinarily begins at the surface
In what reaction metals lose or gain electrons?
Oxidation reaction
Anode is a site where oxidation reaction takes place (T/F)
T
what is absorption of electron called?
The movement of electrons DONT need to be transferred to some other material and movement of electrons is called current.
where does reduction reaction takes place
at cathode
For corrosion to proceed what must happened.
For corrosion to proceed there must be one oxdiation reaction and one reduction reaction