Abstract
Corrosion fatigue tests of a commercial iron were carried out using a cylindrical specimen with a hole in a borate buffer solution containing 5mol/m3 NaCl at a constant passive potential. Polarization current behavior induced by strain cycles has been investigated in order to elucidate the effects of straining frequency and stress ratio. The amplitude of polarization current synchronized with the strain cycle and the phase shift between the polarization current and the strain were calculated. The polarization current obtained prior to the crack initiation was found to be the charging and discharging current of the electric double layer capacitance. The corrosion damage increased as decreasing the straining frequency in the initial stage of crack propagation. The increased corrosion damage was observed at the reduced stress ratio.
| Original language | English |
|---|---|
| Pages (from-to) | 1189-1196 |
| Number of pages | 8 |
| Journal | ISIJ International |
| Volume | 37 |
| Issue number | 12 |
| Publication status | Published - 1997 |
| Externally published | Yes |
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Keywords
- Corrosion fatigue
- Crack initiation
- Electrochemical measurement
- Iron
- Straining frequency
- Stress ratio
ASJC Scopus subject areas
- Metals and Alloys
Cite this
The effects of straining frequency and stress ratio on polarization current responded to cyclic strain in a commercial iron. / Tada, Eiji; Noda, Kazuhiko; Kumai, Shinji; Tsuru, Tooru.
In: ISIJ International, Vol. 37, No. 12, 1997, p. 1189-1196.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The effects of straining frequency and stress ratio on polarization current responded to cyclic strain in a commercial iron
AU - Tada, Eiji
AU - Noda, Kazuhiko
AU - Kumai, Shinji
AU - Tsuru, Tooru
PY - 1997
Y1 - 1997
N2 - Corrosion fatigue tests of a commercial iron were carried out using a cylindrical specimen with a hole in a borate buffer solution containing 5mol/m3 NaCl at a constant passive potential. Polarization current behavior induced by strain cycles has been investigated in order to elucidate the effects of straining frequency and stress ratio. The amplitude of polarization current synchronized with the strain cycle and the phase shift between the polarization current and the strain were calculated. The polarization current obtained prior to the crack initiation was found to be the charging and discharging current of the electric double layer capacitance. The corrosion damage increased as decreasing the straining frequency in the initial stage of crack propagation. The increased corrosion damage was observed at the reduced stress ratio.
AB - Corrosion fatigue tests of a commercial iron were carried out using a cylindrical specimen with a hole in a borate buffer solution containing 5mol/m3 NaCl at a constant passive potential. Polarization current behavior induced by strain cycles has been investigated in order to elucidate the effects of straining frequency and stress ratio. The amplitude of polarization current synchronized with the strain cycle and the phase shift between the polarization current and the strain were calculated. The polarization current obtained prior to the crack initiation was found to be the charging and discharging current of the electric double layer capacitance. The corrosion damage increased as decreasing the straining frequency in the initial stage of crack propagation. The increased corrosion damage was observed at the reduced stress ratio.
KW - Corrosion fatigue
KW - Crack initiation
KW - Electrochemical measurement
KW - Iron
KW - Straining frequency
KW - Stress ratio
UR - http://www.scopus.com/inward/record.url?scp=0031367859&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031367859&partnerID=8YFLogxK
M3 - Article
VL - 37
SP - 1189
EP - 1196
JO - ISIJ International
JF - ISIJ International
SN - 0915-1559
IS - 12
ER -