Dezincification is the corrosion of an alloy (i.e. metal) where the Zn in the alloy reacts preferentially in a corrosive environment. Basically, in yellow brass it is a process in which zinc is lost and porous copper is left behind. Red brass (i.e. <15 wt% Zn) does exhibit dezincification; however, the occurrence is rare because […]
Plumbing Failure Analysis
Northern California failure analysis expert often performs plumbing failure analysis. In this case, the corrosion expert examines plumbing in numerous houses that were plugged due to brass dezincification of yellow brass. In this case, the zinc in the copper-zinc alloy corrodes selectively and this leaves a white deposit on the interior of the pipe. The […]