The act or process of freeing from zinc; also, the condition resulting from the removal of zinc.
A form of pitting corrosion which attacks certain zinc bearing copper-based alloys, often called "yellow brasses", when in contact with sea water or fresh water that is high in oxygen and carbon dioxide. (ASTM B61 and B62 are "red brasses" and not susceptible to dezincification.)
Corrosion in which zinc is selectively leached from zinc-containing alloys. Most commonly found in copper-zinc alloys containing less than 83% copper after extended service in water containing dissolved oxygen; the parting of zinc from an alloy (in some brasses, zinc is lost leaving a weak, brittle, porous, copper rich residue behind) See also dealloying and selective leaching.
Selective corrosion of the beta phase of duplex brass that leaves a copper residue under a ‘meringue’ of zinc oxide.
A corrosion process that removes zinc from brass but leaves the copper in place; the brass (valve or fitting) retains its original dimensions but is severely weakened and is prone to structural failure, leaks, or seepage through the body walls.
Corrosion of some copper-zinc alloys, involving loss of zinc and the formation of a spongy porous copper. See Alloy.