Corrosion
DOE-HDBK-1015/1-93
SPECIALIZED CORROSION
Rev. 0
CH-02
Page 27
SPECIALIZED CORROSION
The environment in which a metal exists has direct bearing on the corrosion
rate of that metal. Because of the unique environment possible in the nuclear
industry, there are a few specialized types of corrosion that must be considered.
EO 1.20
DEFINE the following terms:
a.
Pitting corrosion
b.
Crevice corrosion
c.
Stress corrosion cracking
EO 1.21
STATE the two conditions necessary for pitting corrosion to
occur.
EO 1.22
STATE the particular hazard associated with pitting
corrosion.
EO 1.23
STATE the four controls used to minimize pitting corrosion.
EO 1.24
IDENTIFY the three conditions necessary for stress corrosion
cracking to occur.
EO 1.25
DEFINE the term chemisorption.
EO 1.26
STATE the hazard of stress corrosion cracking.
EO 1.27
STATE the three controls used to prevent stress corrosion
cracking.
EO 1.28
DESCRIBE the two types of stress corrosion cracking that
are of major concern to nuclear facilities including:
a.
Conditions for occurrence
b.
Method(s) used to minimize the probability of occurrence
Pitting and Crevice Corrosion
Another possible effect of dissolved oxygen is accelerated localized attack. This is especially
likely in areas of limited circulation. The resulting corrosion is called pitting corrosion.
