Nzacha Filiform na-apụtakarị na aluminom

corrosion nke Filiform bụ ụdị corrosion pụrụ iche na-apụtakarị na aluminom. Ihe omume ahụ yiri ikpuru na-akpụ akpụ n'okpuru mkpuchi ahụ, na-amalite mgbe niile site na mbepụ ma ọ bụ mmebi na oyi akwa.

Filiform corrosion na-etolite n'ụzọ dị mfe mgbe ihe mkpuchi kpuchie ya na nnu jikọtara ya na okpomọkụ 30/40 Celsius na iru iru mmiri 60-90%. Ya mere, nsogbu a na-ejedebe na mpaghara dị n'ụsọ oké osimiri ma jikọta ya na nchikota na-adịghị mma nke aluminom alloys na tupu ọgwụgwọ.

Iji wedata corrosions filiform, a na-adụ ọdụ ka ị hụ na etching alkaline kwesịrị ekwesị na-esochi asacha acid tupu mkpuchi ntụgharị chrome. A na-atụ aro iwepụ elu aluminom nke 2g/m2 (opekempe 1.5g/m2).

Anodizing dị ka tupu ọgwụgwọ maka aluminum bụ nkà na ụzụ emepụtara pụrụ iche iji gbochie filiform corrosion. A chọrọ usoro anodization pụrụ iche mgbe oke na porosity nke oyi akwa anodization dị mkpa dị mkpa.