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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 129 - 142 (14page)
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Effects of corrosion inhibitors (i.e., sodium nitrite, sodium hexametaphosphate, trimethylamine (TEA),sugar, and urea) on the corrosion resistance of carbon steel in CaCl2 solution were investigated. The testsolution was designed with response surface methodology of design of experiments (DOE) in the range of0 ~ 50 ppm for NaNO2, 0 ~ 200 ppm for (NaPO3)6, 0 ~ 2000 ppm for TEA, 0 ~ 3000 ppm for sugar,0 ~ 200 ppm for urea with 3 wt% CaCl2. The corrosion potential and the corrosion rate were measured withpotentiodynamic polarization tests and analyzed statistically to find main effects of inhibitor concentrationsand interactions between them. As a result, hexametaphosphate was the most effective compound inreducing the corrosion rate. Sugar also reduced the corrosion rate significantly possibly because it coveredthe surface effectively with a high molecular weight. The inhibiting action of sugar was found to beenhanced by adding trimethylamine into the solution. Nevertheless, trimethylamine did not appear to beeffective in inhibiting corrosion by itself. However, urea and sodium nitrite showed almost no inhibition oncorrosion resistance of steel.
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참고문헌 (21)
참고문헌 신청
C. Andrade / 2001 / Electrochemical behaviour of steel rebars in concrete: influence of environmental factors and cement chemistry / Electrochimica Acta 46(24-25):3905~3912
A. Królikowski / 2011 / Impedance study on calcium nitrite as a penetrating corrosion inhibitor for steel in concrete / Electrochimica Acta 56(23):7845~7853
J. X. Xu / 2013 / Effectiveness of inhibitors in increasing chloride threshold value for steel corrosion / Water Science and Engineering 6:354
D.E. Abd-El-Khalek / 2013 / Evaluation of sodium hexametaphosphate as scale and corrosion inhibitor in cooling water using electrochemical techniques / Desalination 311:227~233
V. S. Sastri / 2011 / Green Corrosion Inhibitors : Theory and Practice
A. Królikowski / 2011 / Impedance study on calcium nitrite as a penetrating corrosion inhibitor for steel in concrete / Electrochimica Acta 56(23):7845~7853
J. X. Xu / 2013 / Effectiveness of inhibitors in increasing chloride threshold value for steel corrosion / Water Science and Engineering 6:354
D.E. Abd-El-Khalek / 2013 / Evaluation of sodium hexametaphosphate as scale and corrosion inhibitor in cooling water using electrochemical techniques / Desalination 311:227~233
V. S. Sastri / 2011 / Green Corrosion Inhibitors : Theory and Practice
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