Tus nqi corrosion ntawm zinc coatings txawv nyob ntawm qhov xwm ntawm zinc ntsev (cov khoom siv corrosion) tsim rau saum npoo ntawm zinc txheej nyob rau hauv ntau yam mob. Yog tias zinc ntsev tsis soluble ntau hauv cov tshuaj corrosive, xws li zinc hydroxide, lawv tuaj yeem tiv thaiv cov zinc hauv qab txheej. Hloov pauv, yog tias cov zinc ntsev tsim muaj cov soluble heev, lawv muab kev tiv thaiv me me los yog tsis muaj kev tiv thaiv rau cov zinc hauv qab txheej, uas ua rau muaj kev xeb sai dua.
Yog li ntawd, cov ntsiab lus tseem ceeb uas ua rau muaj kev txhim kho corrosion muaj xws li: siab sulfur cov ntsiab lus nyob rau hauv cov huab cua, cov huab cua siab, cov khoom siv ntau dhau xws li plua plav, thunderstorms, siab oxygen cov ntsiab lus nyob rau hauv cov dej aqueous ntawm zinc txheej, thiab cov tshuaj pH nqi. nyob rau hauv thaj tsam ntawm 1 txog 6 thiab 12.5 txog 14.5. Cov impurities nyob rau hauv zinc txheej feem ntau tsis tshua muaj tshwm sim nyob rau hauv atmospheric tej yam kev mob, tshwj tsis yog nyob rau hauv muaj zog acid daws uas lawv muaj peev xwm ua kom lub corrosion ntawm zinc txheej los ntawm kev tsim micro-roj teeb. Hauv kev daws teeb meem alkaline muaj zog, tus nqi corrosion ntawm zinc txheej kuj tseem yuav nce ntxiv.
