MATERIALS SCIENCE AND CORROSION PROTECTION DANGERS FROM IMPROPER USE OF ALUMINUM TANK CARS

摘要

Test results are given from using railroad tank cars with tanks made of ADO aluminum and intended for shipping acid mixtures instead of shipping solutions of sodium hydrosulfide. All the tank cars showed through pitting on the bodies in the longitudinal and transverse welded joints. The causes and mechanism of the corrosion have been examined. It is emphasized that it is necessary to consider carefully a medium when tank cars are used not for their original purpose.