Ib qho ntawm cov khoom tseem ceeb tshaj plaws ntawm tooj liab yog nws txoj kev tiv thaiv corrosion, ua rau nws muaj txiaj ntsig tshwj xeeb hauv cov cheeb tsam hnyav thiab hauv cov ntawv thov uas yuav tsum muaj lub neej ntev.
Corrosion yog ib qho txheej txheem ntuj tsim uas cov hlau ua rau lawv ib puag ncig, txawm tias muaj kua lossis roj, thiab tawg mus rau hauv cov ntaub ntawv tsis tshua muaj zog. Corrosion tuaj yeem ua rau cov qauv kev puas tsuaj, txo kev ua haujlwm thiab txo cov khoom siv lub neej, uas tuaj yeem ua rau muaj kev cuam tshuam loj hauv ntau daim ntawv thov. Kev tiv thaiv corrosion ntawm cov ntawv tooj liab yog vim muaj ntau yam tseem ceeb.
Ua ntej, tooj liab muaj kev sib raug zoo rau cov pa oxygen, txhais tau tias nws sai sai ua cov txheej txheem oxide tiv thaiv ntawm nws qhov chaw thaum raug huab cua. Cov txheej no yog nyias nyias, feem ntau tsuas yog ob peb atoms tuab, tab sis muaj txiaj ntsig zoo ntawm kev tiv thaiv corrosion. Cov txheej oxide kuj yog kho tus kheej, txhais tau tias yog tias nws puas lawm, txheej tshiab yuav tsim los tiv thaiv cov hlau hauv qab.
Tsis tas li ntawd, tooj liab yog cov hlau zoo, txhais tau tias nws muaj qhov tsis tshua muaj siab rau oxidize thiab hnov mob nrog lwm cov ntsiab lus. Qhov no yog vim hais tias tooj liab atoms muaj ib tug ruaj khov hluav taws xob configuration, uas muab lawv siab oxidation. Tooj liab kuj yog cov hlau tsis muaj hlau, txhais tau tias nws tsis muaj hlau, ua rau nws tsis tshua muaj kev cuam tshuam rau corrosion dua li cov hlau ferrous xws li hlau.
Lwm qhov tseem ceeb uas ua rau tooj liab tiv thaiv corrosion yog nws lub peev xwm los tsim cov alloys nrog lwm cov hlau. Qee cov tooj liab alloys, xws li tooj liab thiab tooj dag, muaj ntau dua corrosion kuj zoo dua li tooj liab ntshiab. Cov alloys kuj tuaj yeem ua rau hnyav dua thiab hnav-tiv taus, ua rau lawv zoo tagnrho rau cov ntawv thov uas yuav tsum muaj lub zog siab thiab corrosion kuj.
Hauv kev xaus, qhov kev tiv thaiv corrosion ntawm cov nplooj ntawv tooj liab yog vim muaj kev sib xyaw ua ke, suav nrog lub peev xwm ntawm tooj liab los tsim cov txheej txheem oxide tiv thaiv, nws tsis tshua muaj siab oxidize thiab hnov mob nrog lwm cov ntsiab lus, nws tsis muaj hlau thiab nws muaj peev xwm tsim cov alloys. nrog rau lwm yam hlau. Copper's corrosion kuj ua rau nws zoo tagnrho rau ntau yam kev siv uas lub neej ntev thiab kev ua haujlwm siab rau qhov hnyav hnyav.
Rov tsim cov lus teb
