|
|
|
| AN INVESTIGAION OF THE ELECTROCHEMICAL MONITORING OF ATMOSPHERIC CORROSION |
| Xu Junli Li Muzeng(Institute of Aeronauticol Materials; Beijing) |
|
|
|
|
Abstract In this paper the experimental results of electrochemical monitoring of atmospheric corrosion is reported. It is shown that the electrochemical monitoring cell modified by the present method has the advantages for more accurately controlling the working surface area, superior stability of work conditions and longer service life. Two types of cells Fe-Zn and Fe-Cu, which had been widely used, were compared. The Fe-Zn cell showed better reproducibility and sensitivity than Fe-Cu cell in a great mensure. It is considered to be an ideal electrochemical monitoring element. The effects of outdoor environmental factors and indoor experimental conditions inside the laboratory on corrosive processes were also investigated. It is found that the relative humidity is the most important factor to influence corrosion rate and the relationship between relative humidity and corrosion rate may be assumed as an exponential function.
|
|
Received: 25 February 1987
|
[1] Sereda, P., Ind. Eng. Chem. 52(2) , 157 (1960)
[2] Kucera, V.; Mattsson, E., Corrosion in Natural Environments, ASTM STP 558, P. 239 (1974)
[3] Kucera, V.; Mattsson, E., 7th Scand. Corr. Cong, Trondheim Norway. May 26～28, P202 (1975)
[4] Mansfeld, F.; Kenkel, J. V., Electrochemical Measurements of Time-of-Wetness and Atmospheric Corrosion Rates CORROSION/77, (1977)
[5] Mansfeld, F., Electrochemical Studies of Atmospheric Corrosion, Rockwell International Science Cantar, (1979)
[6] 《金属“表面湿润”时间的标准监测方法》,航空工业部标准(待审定) |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
