Metal corrosion by yellow sand using an artificial corrosion exposure chamber - Phosphor bronze and an Aluminum casting -

Abstract

In order to examine the yellow sand influence on leaching ions from a phosphor bronze plate and an aluminum casting plate, the behavior of various ion components was examined by using an artificial corrosion exposure chamber under three conditions: (1) pure rain + gas, (2) pure rain + gas + aerosol, and (3) artificial acid rain + gas + aerosol. The increase in the amount of leaching of Si from phosphor bronze was observed by the yellow sand atomizing. This is considered to be the promotion of leaching by the yellow sand atomizing. The amount of leaching of Cu from phosphor bronze was conversely reduced by the yellow sand atomizing. This is considered to be the leaching control by the yellow sand. In some cases the amount of leaching of Al and Si from aluminum casting without the yellow sand atomizing was more increased than that with the yellow sand atomizing. The leaching of Cu from aluminum casting was almost unaffected by the yellow sand atomizing.