Lalacewar rami kuma ana kiranta ƙaramar lalata rami, rami ko rami.
Yana da wani nau'i na lalata lalacewa a cikin abin da mafi yawan saman nakarfe yayiba lalata ba ko lalatawa kaɗan, amma ramukan lalata suna bayyana a wuraren gida kuma suna haɓaka zurfi.Wasu ramukan suna wanzuwa a keɓance, yayin da wasu kuma suna da alaƙa da juna kuma suna kama da ƙasa maras kyau.Ramin Etch na iya zama babba ko ƙanana, amma gabaɗaya ƙanƙanta, kamar yadda aka nuna a cikin wannan adadi daban-daban ramukan ramukan giciye, dangane da girman, zurfin ramin etch gabaɗaya daidai yake da ko girma fiye da diamita na ramin etch.Pitting yana ɗaya daga cikin sifofin lalata na duplex bakin karfe.Ramin rami sau da yawa shine farkon wurin da damuwa lalata fasa da lalata gajiya.
Bakin karfesurface passivation fim saboda kasancewar lahani a cikin bakin karfe, inclusions da solutes, irin su inhomogeneity, don haka da cewa passivation fim ne mafi m a cikin wadannan wurare, a cikin wani m bayani mai lalacewa yana da sauƙi lalacewa, lalata wani ɓangare na anode ya zama mai lalacewa. kunna, da kewaye yankin ya zama wani cathode yankin, da yankin rabo daga cikin biyu ne sosai kananan, anodic halin yanzu yawa yawa ne mai girma, da aiki na warware kara kara, sa'an nan ya zama da dama allura-kamar ramukan.
Bakin karfe, da sauran karafa da suka dogara da suwuce gona da iridon juriya na lalata, a cikin maganin da ke ɗauke da takamaiman anion (chloride, bromide, hypochlorite, ko ions thiosulfate).Muddin yuwuwar lalata (ko yuwuwar da ake amfani da ita a lokacin polarisation na anodic) ya wuce yuwuwar rami Eb, rami na iya faruwa.Hanyar pitting lalata na duplex bakin karfe iri daya ne da sauran bakin karfe.
Karfe da aka yi wa maganitare da oxidising kafofin watsa labarai, ta lalata kudi fiye da asali untreated kafin wani gagarumin raguwa a cikin sabon abu da aka sani da karfe passivation.Ana iya amfani da tsarin wucewa don bayyana ka'idar fim na bakin ciki, wato,wuce gona da irishi ne saboda rawar da karfe da kuma oxidising kafofin watsa labarai, da rawar da karfe surface don samar da wani sosai bakin ciki, m, mai kyau ɗaukar hoto yi, za a iya solidly haɗe zuwa karfe surface passivation fim.Wannan fim a cikin wani lokaci daban ya wanzu, yawanci oxygen da mahadi na ƙarfe.Yana taka rawa na karfe da lalata kafofin watsa labarai gaba daya rabu da rawa na hana karfe da lalata kafofin watsa labarai a kai tsaye lamba, sabõda haka, da karfe m daina dissolving don samar da wani passivated jihar don hana sakamakon lalata.
Lokacin aikawa: Dec-27-2023