Uniform corrosion ntawm stainless hlau yog feem ntau nyob rau hauv acid los yog kub alkaline daws. Tsis tas li ntawd, molten ntsev ntawm chlorides thiab fluorides kuj tuaj yeem ua rau corrosion tsis zoo.
Uniform corrosion yuav tsum tshwm sim ntawm tus nqi tsim nyog nyob rau hauv ib puag ncig nrog qhov kub thiab txias thiab tshuaj muaj pes tsawg leeg. Tus nqi corrosion tuaj yeem txiav txim siab los ntawm kev ntsuas qhov poob ntawm ib chav tsev ib lub sij hawm nyob rau hauv ib qho chaw nto. Qhov no feem ntau yog qhia raws li qhov poob ntawm qhov tuab ntawm lub sijhawm, xws li mm / xyoo. Los ntawm kev txhais, stainless hlau feem ntau suav hais tias yuav tiv taus corrosion tsis zoo nyob rau hauv ib puag ncig tshwj xeeb yog tias tus nqi corrosion tsis tshaj 0.1 mm / xyoo. Pitting thiab crevice corrosion Uniform corrosion ua rau muaj kev puas tsuaj rau cov zaj duab xis passive, tab sis pitting thiab crevice corrosion yog tshwm sim los ntawm kev puas tsuaj rau cov zaj duab xis passive. Nyob rau hauv qhov tseeb, corrosion tsis ua hauj lwm ntawm stainless hlau feem ntau yog tshwm sim los ntawm localized corrosion es tsis xws li corrosion, nyob rau hauv cov ntaub ntawv uas galvanic khub yog tsim nyob rau hauv lub zos ntawm cov hlau stainless, uas ua rau kom ceev corrosion propagation. Qhov hnyav poob ntawm qhov chaw corrosion kuj yuav me me piv rau cov corrosion tsis sib xws, thiab tus nqi corrosion raws li qhov taw qhia ntawm corrosion hnyav tsis cuam tshuam rau hauv cheeb tsam corrosion. Hauv qhov sib piv, pitting thiab crevice corrosion raug suav hais tias yog ib qho xwm txheej twg thaum pib qhov chaw corrosion, nws nkag mus rau cov khoom sai sai thiab yog li yuav tsum tau zam.
cev condenser
