Galvanic corrosion yog feem ntau thiab cuam tshuam daim ntawv ntawm corrosion. Nws tshwm sim thaum ob qhov sib txawv (sib txawv) hlau nyob rau hauv kev sib cuag nrog ib qho electrolyte. … Nws siv tau rau ob qho tib si hlau thiab cov khoom tsis yog hlau nrog lossis tsis muaj oxygen.
Puas corrosion xav tau oxygen?
Corrosion yog txheej txheem ob kauj ruam uas yuav tsum muaj peb yam: ib qho hlau nplaum, ib qho electrolyte, thiab oxygen.
Yuav ua li cas xeb tsis muaj oxygen?
Kev xeb tsis tuaj yeem tshwm sim yam tsis muaj dej thiab oxygen. Dej pab hlau ua rau cov pa oxygen los ntawm kev rhuav tshem cov pa oxygen molecule. Thaum thawj theem ntawm xeb, hlau poob electrons thiab oxygen tau txais electrons.
Puas corrosion xav tau oxygen thiab dej?
Cov hlau reacts nrog dej thiab oxygen los tsim hydrated hlau (III) oxide, uas peb pom li xeb. Hlau thiab hlau xeb thaum sib cuag nrog dej thiab oxygen - ob leeg yog xav tau kev xeb kom tshwm sim.
Yuav ua li cas corrosion tsis muaj dej?
Rrusting kuj yuav tsum muaj cov dej noo uas, raws li nws tshwm sim, yuav luag tsis muaj nyob hauv huab cua ib puag ncig peb. Rusting, yog li ntawd, tuaj yeem tshwm sim yam tsis muaj qhov tseem ceeb ntawm cov dej ua kuaNws kuj tseem nthuav tias cov hlau raug tsuas yog dej ntshiab xwb yuav tsis xeb. … Kev xeb hlau tsis yog txheej txheem thim rov qab!