Iialloys zobhedu zinokuchasana okugqwesileyo kwi-atmospheric kunye ne-corrosion yamanzi olwandle, njenge-silicon bronze,ubhedu aluminiyamkwaye nangokunjalo.Kwimithombo yeendaba ngokubanzi, ilawulwa yi-corrosion efanayo.Kukho uxinzelelo oluqinileyo lwe-corrosion susceptibility kwisisombululo phambi kwe-ammonia, kwaye kukho iifom ze-corrosion zendawo ezifana ne-galvanic corrosion, i-pitting corrosion, kunye ne-abrasion corrosion.I-Dezincification yobhedu, i-delumination of aluminium bronze, kunye ne-denitrification ye-curonickel ziindlela ezikhethekileyo zokubola kwi-alloys zethusi.
Ngethuba lokusebenzisana kwee-alloys zethusi kunye ne-atmospheric and marine environments, iifilimu ezikhuselayo ze-passive okanye ze-semi-passive zingenziwa phezu kwee-alloys zethusi, ezivimbela ukubola okuhlukeneyo.Ke ngoko, uninzi lwealloys zethusi lubonisa ukuxhathisa okugqwesileyo kokugqwala kwiindawo ezisingqongileyo.
I-atmospheric corrosion ye-alloys zethusi I-atmospheric corrosion yezinto zetsimbi ixhomekeke ikakhulu kumphunga wamanzi kwi-atmosphere kunye nefilimu yamanzi kumphezulu wezinto eziphathekayo.Ukufuma okunxulumene ne-atmosfera xa izinga lokutya kwe-atmosfera yesinyithi liqalisa ukunyuka kabukhali kubizwa ngokuba bubumanzi obubalulekileyo.Ukufuma okubalulekileyo kweealloyi zobhedu kunye nezinye iintsimbi ezininzi kuphakathi kwe-50% kunye ne-70%.Ungcoliseko olukwi-atmosfera lunefuthe elibonakalayo kwi-corrosion ye-alloys yobhedu.Izinto ezingcolisa i-acidic ezifana ne-C02, i-SO2, i-NO2 kwi-atmosphere ye-industrial industry iyachithwa kwifilimu yamanzi kunye ne-hydrolyzed, eyenza ifilimu yamanzi i-acidified kunye nefilimu yokukhusela ingazinzi.Ukubola kwezityalo kunye negesi ephumayo ekhutshwa yimizi-mveliso yenza igesi yeammonia nehydrogen sulfide ibekho emoyeni.I-ammonia ikhawulezisa ngokukhawuleza ukubola kobhedu kunye ne-alloys yobhedu, ngakumbi uxinzelelo lwe-corrosion.
Ukuchaphazeleka kokutya kobhedu kunye neealloyi zobhedu kwiindawo ezahlukeneyo zokukhula kwe-atmospheri yahluke kakhulu.Idatha yokubola kwimo engqongileyo yaselwandle ngokubanzi, kwimizi-mveliso nakwindawo yasemaphandleni iye yaxelwa iminyaka eli-16 ukuya kwengama-20.Uninzi lwee-alloys zethusi zixutywe ngokufanayo, kwaye izinga lokubola li-0.1 ukuya kwi-2.5 μm / a.Izinga lokubola kwengxubevange yobhedu kwimekobume yoshishino erhabaxa kunye nemeko yaselwandle yoshishino ngumlinganiselo ongaphezulu kunowo womoya opholileyo waselwandle kunye nomoya wasemaphandleni.Umoya ongcolisekileyo unokonyusa kakhulu ukuchaphazeleka kobhedu kuxinzelelo lwe-corrosion.Umsebenzi uyaqhubeka ukuqikelela kunye nokuhlelwa kwesantya sokubola kweealloyi zobhedu ngamaatmospheri ahlukeneyo ngokusekwe kwizinto ezisingqongileyo.
Ixesha lokuposa: Jul-04-2022