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Pit Depth Measurements as a Means of Evaluating the Corrosion Resistance of Aluminum in Sea Water
R. J. Hogan
D. S. Keir
M. J. Pryor
T. J. Summerson
出版
ASTM International
, 1957
URL
http://books.google.com.hk/books?id=mWV6zgEACAAJ&hl=&source=gbs_api
註釋
The development of a quantitative method for evaluating the resistance of aluminum to pitting corrosion in sea water is described. The method is based on a statistical treatment of penetrometer measurements of every pit present on test specimens immersed in sea water for periods up to 24 months. Normal frequency distributions were obtained by plotting the frequency of pitting against the square root of the pit depth. Calculations of the mean square root pit depth, the standard deviation, and standard error of the mean square root pit depth are shown. The importance of the mean square root pit depth, the standard deviation, and the frequency of pitting in determining the manner by which pitting corrosion proceeds is discussed.
