Thecombinationofananticorrosionlayerandcathodicprotectionisthemostcost-effectivecorrosioncontrolmeasure.Thepresenceofananticorrosionlayerreducestheneedforcathodicprotectioncurrent,andcathodicprotectionslowscorrosionatthepointwheretheanticorrosionlayerbreaksdown.Whenthecathodicprotectioncurrent...

ZincalloysacrificialanodeIntroduction:Zincalloysacrificialanodemaincomponent‘zinc’,chemicalsymbolisZn,atomicnumberis30,atomicweightis65.38.alightgreyexcessivemetal,densityis7.14g/cm3,meltingpointis419.5℃.Zincalloysacrificialanodeismostlyusedinsoilenvironmentwithsoilresistivitylessthan20ohm-morseawat...

 Sacrificialanodeisacommonlyusedelectrochemicalprotectionmethod,whichprotectstheconnectedmetalfromcorrosionbyconnectingtheprotectedmetalwithamoreactivemetal,sothatthelatteractsasananodetocorrode.Thecharacteristicsofthesacrificialanodearemainlyreflectedinthefollowingaspects: