Aluminiyamu ndi chitsulo chachiwiri chachikulu padziko lapansi, ndipo chifukwa cha zinthu zake zabwino kwambiri, ndi imodzi mwazitsulo zomwe zimagwiritsidwa ntchito kwambiri masiku ano. Chifukwa chake, ndikofunikira kumvetsetsa zomwe zimafupikitsa moyo wazitsulo izi.

Kuwonongeka kwachitsulo chilichonse kumakhudza kwambiri mphamvu zake zogwirira ntchito, ndipo zikavuta kwambiri kumayambitsa kuwonongeka kwapangidwe, monga ming'alu, kusweka pang'ono ndi kulephera kwathunthu kwa zinthu.

Kodi aluminium corrosion ndi chiyani? Kuwonongeka kwa aluminiyamu kumatanthawuza kuwonongeka kwapang'onopang'ono kwa mamolekyu a aluminiyumu kukhala ma oxides, motero kumachepetsa mphamvu zake zakuthupi ndi zamankhwala. Kwenikweni, aluminiyamu ndi chitsulo chogwira ntchito, komanso ndichitsulo chosagwira ntchito.

Mitundu ya aluminiyamu dzimbiri
Kuwonongeka kwamlengalenga
Ambiri mawonekedwe a aluminiyamu dzimbiri. Kuwonekera kwa aluminiyumu kuzinthu zachilengedwe kungayambitse dzimbiri mumlengalenga. Popeza zimatha kuchitika m'malo ambiri, dzimbiri mumlengalenga ndi gawo lalikulu kwambiri pakuwonongeka kwathunthu kwa aluminiyamu chifukwa cha dzimbiri zamitundu yonse padziko lapansi.

Kuwonongeka kwamagetsi
Galvanic corrosion, yomwe imadziwikanso kuti dissimilar metal corrosion, imakhudza aluminiyumu mwakuthupi kapena kudzera mu electrolyte yolumikizidwa ndi zitsulo zamtengo wapatali. Chitsulo cholemekezeka chikhoza kukhala chitsulo chilichonse chokhala ndi reactivity yochepa kuposa aluminiyumu.

Pitting
Pitting dzimbiri ndi pamwamba dzimbiri chodabwitsa cha zotayidwa zitsulo, amene amakhala ndi mabowo ang'onoang'ono (maenje) pamwamba. Kawirikawiri, ma dimples awa samakhudza mphamvu ya mankhwala. M'malo mwake, iyi ndi nkhani yokongoletsa, koma ngati mawonekedwe a pamwamba ndi ovuta, amatha kulephera.

Kuwonongeka kwa mpata
Crevice corrosion ndi njira yodziwira m'malo mwazinthu. Zida zophatikizika kapena zolakwika zamapangidwe mwangozi zingayambitse kupanga mipata. Chotsatira chake, kutolera madzi a m’nyanja m’matumba amenewa kungachititse kuti mng’alukawo ukhale ndi dzimbiri.

Exfoliation dzimbiri
Exfoliation corrosion ndi mtundu wapadera wa intergranular corrosion mu ma aluminiyamu aloyi, ndi mawonekedwe owoneka bwino. Izi zikuwonekera makamaka muzinthu za aluminiyamu zomwe zakhala zikugwedezeka ndi kutentha kapena kuzizira.