Corrosion
DOE-HDBK-1015/1-93
OBJECTIVES
Rev. 0
CH-02
Page v
TERMINAL OBJECTIVE
1.0
Without references, DESCRIBE the causes and effects of corrosion on metals and the
type of chemistry used in a plant to minimize corrosion.
ENABLING OBJECTIVES
1.1
DEFINE the following terms:
a.
Ionization
b.
Conductivity
c.
Corrosion
d.
Electrolysis
e.
General corrosion
1.2
DESCRIBE an electrochemical cell with respect to the corrosion of metals.
1.3
STATE what happens to a metal during the oxidation step of the oxidation-reduction
process.
1.4
STATE what happens to a metal during the reduction step of the oxidation-reduction
process.
1.5
DEFINE the following terms:
a.
Passivity
b.
Polarization
1.6
DESCRIBE the affects of passivity and polarization on the corrosion process.
1.7
LIST the two conditions that contribute to general corrosion.
1.8
DESCRIBE how the rate of corrosion occurring in the plant is affected by the following:
a.
Temperature
b.
Water velocity
c.
Oxygen
d.
pH
e.
Condition and composition of the metal surface
