Tooj liab tsim ib txheej tiv thaiv oxide thaum raug cua los yog dej. Cov txheej nyias nyias no, hu ua patina, ua qhov thaiv ntawm qhov chaw tooj liab thiab ib puag ncig ib puag ncig. Lub patina tiv thaiv kev sib cuag ncaj qha ntawm tooj liab thiab corrosive, xws li dej, oxygen, thiab ntau yam tshuaj muaj nyob hauv cov kav dej. Raws li qhov tshwm sim, cov kav dej tooj liab muaj qhov tiv taus corrosion heev, ua kom muaj kev ncaj ncees thiab kav ntev ntawm cov kav dej hauv tsev.
Lwm qhov laj thawj rau tooj liab qhov kev tiv thaiv corrosion yog nws qhov muaj txiaj ntsig zoo. Hauv cov ntsiab lus ntawm electrochemical, tooj liab yog suav tias yog cov hlau zoo, txhais tau tias nws muaj qhov tsis tshua muaj kev cuam tshuam rau cov tshuaj lom neeg thiab poob electrons. Cov cuab yeej no ua rau tooj liab tsis tshua muaj kev cuam tshuam rau oxidation thiab corrosion piv rau lwm yam hlau xws li hlau lossis hlau. Thaum cov kav dej tooj liab nkag mus rau hauv cov dej los yog cov khoom siv corrosive, lawv tsis tshua muaj kev hloov tshuaj uas yuav ua rau corrosion.
Tsis tas li ntawd, tooj liab qhov kev tiv thaiv corrosion yog txhim kho los ntawm nws cov khoom kho tus kheej. Yog tias qhov khawb me me lossis kev puas tsuaj tshwm sim ntawm qhov chaw ntawm cov yeeb nkab tooj liab, cov tooj liab ions los ntawm thaj chaw raug tsiv mus rau qhov chaw puas thiab tsim cov txheej txheem tshiab. Txoj kev kho tus kheej no, lub npe hu ua autogenous kho, pab tiv thaiv corrosion ntxiv thiab tswj cov yeeb nkab txoj kev ncaj ncees.
Copper tsis kam tiv thaiv corrosion txuas mus rau ntau yam dej zoo. Txawm hais tias cov dej yog acidic, alkaline, tawv, lossis mos, cov kav dej tooj liab tuaj yeem tiv taus qhov sib txawv yam tsis muaj teeb meem cuam tshuam loj. Qhov kev ua tau zoo no ua rau cov kav dej tooj liab haum rau kev siv cov kav dej sib txawv, suav nrog thaj chaw nyob, kev lag luam, thiab chaw lag luam.
Ntxiv nrog rau kev tiv thaiv corrosion, cov kav dej tooj liab tsis tso cov khoom tsis zoo lossis tshuaj rau hauv dej. Qhov no yog qhov tseem ceeb tshwj xeeb rau kev ua kom muaj kev nyab xeeb thiab zoo ntawm cov dej. Tsis zoo li lwm yam khoom siv hauv cov kav dej, xws li txhuas lossis cov yas, tooj liab tsis tso cov kab mob phem mus rau hauv dej, txhawb dej huv thiab siv tau rau kev noj.
Txhawm rau kom muaj kev tiv thaiv corrosion ntawm cov kav dej tooj liab, kev txhim kho kom zoo thiab kev saib xyuas yog qhov tseem ceeb. Cov kav dej tooj liab yuav tsum raug qhov loj me, txhawb nqa, thiab tiv thaiv kev puas tsuaj rau lub cev. Kev rwb thaiv tsev tsim nyog kuj tseem tuaj yeem tiv thaiv condensation ntawm cov kav dej txias, txo qhov muaj feem cuam tshuam los ntawm kev ya raws. Kev tshuaj xyuas tsis tu ncua thiab kho tam sim ntawm kev xau lossis kev puas tsuaj tuaj yeem tiv thaiv kev xeb ntawm kev sib kis thiab khaws cia kev ncaj ncees ntawm cov kav dej.
