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| DETERMINATION OF CORROSION REACTION RESISTANCE BASED ON AC IMPEDANCE AND NUMERICAL INTEGRATION |
| Wu Jixun; Wang Shunxin and Peng Jianming (Uuiversity of Science and Teclnology Beijing) |
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Abstract The two frequency method for measurring corrosion reaction resistance based on a. c. impedance and numerical integration has been proposed. The real part and imaginary part of the impedance of corrosion system can be calculated through numerical integration, and the corrosion reaction resistance can be obtained by solving the equations. Then it could be convrted into the corrosion rate. The method has the advantages of short measurement and high precision. According to the principle, a corrosion rate measurement system composed of TP801B single board computer, TPS01 1232A/D converter and the corresponding interface circuit has been set up. Both the module circuit and practical corrosion system were measured by means of the new apparatus. The comparison of the obtained results with the data measured by solartron 1250 FRA and the theoretical values was made. It showed that the proposed method and the newly set up apparatus is reliable. Since the data collection and process is controlled only by a single board computer, the apparatus is compact and low cost. It can be applicable to corrosion monitoring.
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Received: 25 June 1992
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[1] Cox W. M. , Phull B.S. et al, Corrcsion186, Paper No. 361,NACE, Houston,TX (1986)
[2] Dawson J.L. , Eden D.A. and Hladky K. , UK Corrosion/83, Birmingham, V.K., 1983
[3] Pattilo M. , Corrceion/86,Paper No. 263, NACE,Houston,TX (1986)
[4] Lorenz W.J. , and Mansfeld M. , Corros. Sci. , 21,647(1981)
[5] 水流澈,春山志朗,防食技术,27,573(1978)
[6] 水流澈,春山志朗,防食技术,33,579(1984) |
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