1. I-Atmospheric corrosion: i-atmospheric corrosion of metal materials ixhomekeke ikakhulu kumphunga wamanzi kwi-atmosphere kunye nefilimu yamanzi phezu kwezinto eziphathekayo. Ukufuma okunxulumene ne-atmospheri kubizwa ngokuba bubumanzi obubalulekileyo xa isantya sokubola kweatmosfera yesinyithi siqalisa ukunyuka kabukhali. Ukufuma okubalulekileyo kweubhedui-alloy kunye nezinye iintsimbi ezininzi ziphakathi kwe-50% kunye ne-70%. Ungcoliseko lwe-atmospheri lunesiphumo esibalulekileyo sokwandisa ukubola kwengxubevange yobhedu. Ukubola kwezityalo kunye negesi ephumayo yefektri, i-ammonia kunye negesi ye-hydrogen sulfide emoyeni, i-ammonia ikhawulezisa kakhulu ukubola kobhedu kunye ne-alloy yobhedu, ngakumbi uxinzelelo lwe-corrosion. I-C02, i-SO2, i-NO2 kunye nezinye izinto ezingcolisa i-acidic kwi-atmosphere ye-industrial ye-industrial inyibilika kwifilimu yamanzi kunye ne-hydrolyze, okwenza ifilimu yamanzi i-acidified kunye nefilimu ekhuselayo ingazinzi.
2. I-Spresh zone corrosion: isimilo somhlwa kwengxubevange yobhedu kwindawo yokuchaphaza kwamanzi olwandle isondele kakhulu kumoya ojikeleze ulwandle. Nayiphi na ingxubevange yobhedu enokumelana nokudumba okulungileyo kwimimoya erhabaxa yaseLwandle nayo iya kuba nokuxhathisa okulungileyo kokuhlwa kwindawo yokuchaphaza. Indawo yokutshiza ibonelela ngeoksijini eyaneleyo yokukhawulezisa ukubola kwentsimbi, kodwa yenza ingxubevange yobhedu kunye nobhedu ihlale ibuthuntu. Izinga lokubola kweealloyi zobhedu ezivezwe kwindawo yokuchaphaza ngokuqhelekileyo alidluli kwi-5μm/a.
3. Uxinzelelo lwe-corrosion: ixesha lokuqhekeka kobhedu ngummeli oqhelekileyo woxinzelelo lwe-corrosion yealloy yobhedu. Iintanda zamaxesha athile onyaka, ezafunyanwa ekuqaleni kwenkulungwane yama-20, ziziintanda kwindawo engasentla yeqokobhe elishwabeneyo lisingise ngakwintloko yemfazwe. Esi siganeko sikholisa ukwenzeka kwiindawo ezishushu, ingakumbi ngamaxesha eemvula, kungoko kusithiwa ukucandeka kwamaxesha onyaka. Ngenxa yokuba inxulumene ne-ammonia okanye i-ammonia derivatives, ikwabizwa ngokuba yi-ammonia crack. Enyanisweni, ubukho be-oksijini kunye nezinye i-oxidants, kunye nobukho bamanzi nazo ziimeko ezibalulekileyo zoxinzelelo lwe-corrosion yobhedu.
4. Ukubola kwe-corrosion: i-dezinc yobhedu yenye yezona zinto ziqhelekileyo ze-alloy copper decomposition corrosion, inokukhatshwa yinkqubo yoxinzelelo lwe-corrosion ngexesha elifanayo, inokuthi yenzeke yodwa. Kukho iindlela ezimbini ze-dezincification: enye yi-lamellar shedding uhlobo lwe-dezincification, ebonisa ifom ye-corrosion efanayo, ingozi encinci ekusebenziseni izinto. Olunye luhlobo lophuhliso olunzulu olufana nebholiti ye-dezincization, ngendlela ye-corrosion yomgodi, ukuze amandla ezinto eziphathekayo anciphe kakhulu, ingozi enkulu.
5. Ukonakala kwemekobume yaselwandle: ukuthotywa kwengxubevange yobhedu kwimo engqongileyo yaseLwandle ukongeza kumoya waseLwandle, kukho indawo yokuchaphaza kwamanzi olwandle, uluhlu lwamaza kunye nendawo yokuntywiliselwa ngokupheleleyo.
Ixesha lokuposa: Jun-27-2022