抄録
The quality of the rust film formed on the steel is a significant factor in atmospheric corrosion. In the present paper, ion-exchange membranes were adopted to simulate the anion and cation selective permeability of the rust film. The i-E curve and the electrochemical impedance of a carbon steel covered with the ion-exchange membrane were measured to discuss the effect of the ion transfer inside the rust film on the anodic dissolution. The electrochemical impedance of the rust film membrane was measured. The electrochemical impedance of the rust film membrane shows the apparent capacitive behavior. It was found that the film had huge capacitance of order 10 mF cm-2. The resistance of the rust films of Fe-3%Ni, Fe-1%W and Fe-0.6%Mo was large value, indicating that the low ion permeability rate inside the rust film contributed to decreasing the corrosion rate of low-alloy steel.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 1301-1310 |
| ページ数 | 10 |
| ジャーナル | Corrosion Science |
| 巻 | 46 |
| 発行部数 | 5 |
| DOI | |
| 出版物ステータス | Published - 2004 5 |
| 外部発表 | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
- Metals and Alloys
これを引用
Electrochemical impedance of thin rust film of low-alloy steels. / Itagaki, M.; Nozue, R.; Watanabe, K.; Katayama, H.; Noda, Kazuhiko.
：: Corrosion Science, 巻 46, 番号 5, 05.2004, p. 1301-1310.研究成果: Article
}
TY - JOUR
T1 - Electrochemical impedance of thin rust film of low-alloy steels
AU - Itagaki, M.
AU - Nozue, R.
AU - Watanabe, K.
AU - Katayama, H.
AU - Noda, Kazuhiko
PY - 2004/5
Y1 - 2004/5
N2 - The quality of the rust film formed on the steel is a significant factor in atmospheric corrosion. In the present paper, ion-exchange membranes were adopted to simulate the anion and cation selective permeability of the rust film. The i-E curve and the electrochemical impedance of a carbon steel covered with the ion-exchange membrane were measured to discuss the effect of the ion transfer inside the rust film on the anodic dissolution. The electrochemical impedance of the rust film membrane was measured. The electrochemical impedance of the rust film membrane shows the apparent capacitive behavior. It was found that the film had huge capacitance of order 10 mF cm-2. The resistance of the rust films of Fe-3%Ni, Fe-1%W and Fe-0.6%Mo was large value, indicating that the low ion permeability rate inside the rust film contributed to decreasing the corrosion rate of low-alloy steel.
AB - The quality of the rust film formed on the steel is a significant factor in atmospheric corrosion. In the present paper, ion-exchange membranes were adopted to simulate the anion and cation selective permeability of the rust film. The i-E curve and the electrochemical impedance of a carbon steel covered with the ion-exchange membrane were measured to discuss the effect of the ion transfer inside the rust film on the anodic dissolution. The electrochemical impedance of the rust film membrane was measured. The electrochemical impedance of the rust film membrane shows the apparent capacitive behavior. It was found that the film had huge capacitance of order 10 mF cm-2. The resistance of the rust films of Fe-3%Ni, Fe-1%W and Fe-0.6%Mo was large value, indicating that the low ion permeability rate inside the rust film contributed to decreasing the corrosion rate of low-alloy steel.
KW - Electrochemical impedance
KW - Ion-exchange membrane
KW - Low-alloy steel
KW - Rust film
UR - http://www.scopus.com/inward/record.url?scp=1542286797&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1542286797&partnerID=8YFLogxK
U2 - 10.1016/j.corsci.2003.08.002
DO - 10.1016/j.corsci.2003.08.002
M3 - Article
AN - SCOPUS:1542286797
VL - 46
SP - 1301
EP - 1310
JO - Corrosion Science
JF - Corrosion Science
SN - 0010-938X
IS - 5
ER -