The corrosion behavior of aluminum in natural waters

Abstract

AbstractThis paper reviews the behavior of aluminum in contact with natural waters. The influence of water composition and service factors on corrosivity to aluminum are discussed. Laboratory pitting test methods are described and data are presented to support the existence of a cube root (in time) rate curve for the pitting of aluminum in water. Information on the pitting of aluminum in 17 Canadian waters is given and mention is also made of the pitting of aluminum in seawater and oil field brines. A statistical treatment of pitting data is presented. Finally, measures for extending the life of aluminum equipment subject to pitting by water are suggested.