Shin da gaske bakin karfe ne?

Shin da gaske bakin karfe ne?

Bakin Karfe (Bakin Karfe) yana da juriya ga iska, tururi, ruwa da sauran kafofin watsa labarai marasa rauni ko bakin karfe. Juriyarsa na lalata ya dogara da abubuwan gami da ke ƙunshe a cikin ƙarfe. Gabaɗaya, abun ciki na chromium ya fi 12% kuma yana da Karfe Karfe ana kiransa bakin karfe. Chromium shine ainihin kashi don samun juriyar lalata na bakin karfe. Lokacin da abun ciki na chromium a cikin karfe ya kai kusan kashi 12%, chromium yana amsawa tare da iskar oxygen a cikin matsakaiciyar lalata don samar da fim na bakin ciki na oxide (fim ɗin wucewa) akan saman karfen. ) Don hana kara lalacewa na karfe substrate. Lokacin da fim ɗin oxide ya ci gaba da lalacewa, ƙwayoyin oxygen a cikin iska ko ruwa za su ci gaba da kutsawa ko kuma atom ɗin ƙarfe a cikin ƙarfe zai ci gaba da rabuwa, suna yin sako-sako da ƙarfe, kuma saman bakin karfe zai ci gaba da yin tsatsa.
Girman ikon hana lalata bakin karfe yana canzawa tare da sinadarai na karfe da kansa, yanayin kariya, yanayin amfani, da nau'in matsakaicin muhalli. Misali, bututun karfe 304 yana da cikakkiyar juriyar tsatsa a cikin busasshen yanayi mai tsafta, amma zai yi saurin yin tsatsa lokacin da aka matsar da shi zuwa gabar teku a hazo mai dauke da gishiri mai yawa. mai kyau. Saboda haka, ba kowane nau'i na bakin karfe ba ne, wanda zai iya tsayayya da lalata da tsatsa a ƙarƙashin kowane yanayi.