NACE 3 STUDY GUIDE Chapters 1-5
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1. Corrosion description Is usually described by its results. Familiar terms in-
clude rust, scaling, discoloration, oxidation, pitting, etc.
2. Corrosion The deterioration of a substance, usually a metal, or its
properties because of a reaction with its environment.
3. The most common product of corro- Oxide of iron "rust"
sion is an
4. Passivation The formation of a thin, tightly adherent surface layer.
Formed from the corrosion product, that slows the rate
of corrosion.
5. All corrosion of iron at normal ambi- an electrochemical process.
ent conditions is
6. How do electrons and ions travel. Electrons travel through metal, Ions travel through an
electrolyte.
7. Corrosion is established as DC circuits.
8. The greater the flow in the corrosion The greater the metal loss.
circuit.
9. Anode is the part of the metal that corrodes (i.e., dissolves in
the electrolyte).
10. The metal that dissolves is does so positively charged ions.
in the form of
11. Metal deterioration occurs at the Anode. It is the portion of the cell that where metallic
iron is first converted to another substance.
12. Cations positively charged ions
, NACE 3 STUDY GUIDE Chapters 1-5
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13. Cathode is the more noble region on the electrode (metal sur-
face) where the electrons are consumed.
14. While oxidation occurs at the _____, Anode, Cathode
reduction occurs at the _____
15. Metallic Pathway Metal connecting an anode to a cathode in a corrosion
cell and allows for the passage of electrons. Generated
at the anode, to the cathode.
16. Electrolyte The medium that conducts the ionic (rather than elec-
tronic) current.
17. Ions positively and negatively charged atoms.
18. If anodes and cathodes remain in localized and pitting corrosion occurs.
the same place for a period of time,
the corrosion is,
19. Mill Scale is: A blue-black layer of iron oxide
Cathodic relative to the substrate
Generally removed prior to painting.
20. Galvanic Series is a list of materials in order of their corrosion potential,
with the most easily corroded or, or most active, at the
top, and the least easily corroded or least active, at the
bottom. is sea water at 25 degrees c.
21. Factors that affect the rate of corro- Oxygen:
sion Temperature:
Chemical Salts:
Humidity:
Pollutants and Acid Gases:
Study online at https://quizlet.com/_cqa2fk
1. Corrosion description Is usually described by its results. Familiar terms in-
clude rust, scaling, discoloration, oxidation, pitting, etc.
2. Corrosion The deterioration of a substance, usually a metal, or its
properties because of a reaction with its environment.
3. The most common product of corro- Oxide of iron "rust"
sion is an
4. Passivation The formation of a thin, tightly adherent surface layer.
Formed from the corrosion product, that slows the rate
of corrosion.
5. All corrosion of iron at normal ambi- an electrochemical process.
ent conditions is
6. How do electrons and ions travel. Electrons travel through metal, Ions travel through an
electrolyte.
7. Corrosion is established as DC circuits.
8. The greater the flow in the corrosion The greater the metal loss.
circuit.
9. Anode is the part of the metal that corrodes (i.e., dissolves in
the electrolyte).
10. The metal that dissolves is does so positively charged ions.
in the form of
11. Metal deterioration occurs at the Anode. It is the portion of the cell that where metallic
iron is first converted to another substance.
12. Cations positively charged ions
, NACE 3 STUDY GUIDE Chapters 1-5
Study online at https://quizlet.com/_cqa2fk
13. Cathode is the more noble region on the electrode (metal sur-
face) where the electrons are consumed.
14. While oxidation occurs at the _____, Anode, Cathode
reduction occurs at the _____
15. Metallic Pathway Metal connecting an anode to a cathode in a corrosion
cell and allows for the passage of electrons. Generated
at the anode, to the cathode.
16. Electrolyte The medium that conducts the ionic (rather than elec-
tronic) current.
17. Ions positively and negatively charged atoms.
18. If anodes and cathodes remain in localized and pitting corrosion occurs.
the same place for a period of time,
the corrosion is,
19. Mill Scale is: A blue-black layer of iron oxide
Cathodic relative to the substrate
Generally removed prior to painting.
20. Galvanic Series is a list of materials in order of their corrosion potential,
with the most easily corroded or, or most active, at the
top, and the least easily corroded or least active, at the
bottom. is sea water at 25 degrees c.
21. Factors that affect the rate of corro- Oxygen:
sion Temperature:
Chemical Salts:
Humidity:
Pollutants and Acid Gases:
