Aluminom bụ ọla nke abụọ kachasị ukwuu na mbara ala, n'ihi njirimara ya mara mma, ọ bụ otu n'ime ọla ndị a na-ejikarị eme ihe taa. Ya mere, ọ bara uru ịghọta ọnọdụ ndị na-ebelata ndụ nke ọla ndị a.
Nkwụsị nke ígwè ọ bụla ga-emetụta ike ọrụ ya nke ukwuu, na n'ọnọdụ ndị dị oke njọ ga-eduga ná mmebi nhazi, dị ka mgbawa, mgbaji akụkụ na ọdịda ihe zuru ezu.
Gịnị bụ aluminom corrosion? Aluminom corrosion na-ezo aka na mbelata nke nta nke nta nke aluminom n'ime oxides, si otú ahụ na-ebelata ihe onwunwe ya na nke kemịkal. N'ezie, aluminom bụ ígwè na-arụ ọrụ, ma ọ bụkwa ígwè na-agafe agafe.
Ụdị nke aluminom corrosion
Ikuku corrosion
Ụdị kachasị nke aluminom corrosion. Ikpughe nke aluminom na ihe ndị sitere n'okike nwere ike ime ka corrosion ikuku dị. Ebe ọ bụ na ọ nwere ike ime n'ọtụtụ ebe, ikuku ikuku bụ akụkụ kachasị ukwuu nke mmebi nke aluminom nke ụdị corrosion niile dị n'ụwa kpatara.
Igwe ọkụ eletrik
Galvanic corrosion, nke a makwaara dị ka corrosion metal dị iche, na-emetụta aluminom n'anụ ahụ ma ọ bụ site na electrolytes jikọtara na ọla dị oke ọnụ ahịa. Igwe mara mma nwere ike ịbụ ọla ọ bụla nwere mmeghachi omume dị ala karịa aluminom.
Pitting
Pitting corrosion bụ n'elu corrosion onu nke aluminom metal, nke e ji mara obere oghere (olulu) n'elu. N'ozuzu, dimples ndị a anaghị emetụta ike ngwaahịa ahụ. Kama, nke a bụ ihe ịma mma, mana ọ bụrụ na ọdịdị elu dị oke egwu, ọ nwere ike ibute ọdịda.
Crevice corrosion
Crevice corrosion bụ ụdị nke usoro nrụrụ mpaghara n'ime ihe. Ihe nkpuchi ma ọ bụ njehie imewe na mberede nwere ike iduga n'ichepụta oghere. N'ihi ya, ịchịkọta mmiri dị n'oké osimiri n'ime akpa ndị a nwere ike ime ka corrosion gbazee.
Exfoliation corrosion
Exfoliation corrosion bụ ụdị pụrụ iche nke intergranular corrosion na aluminom alloys, nwere ụkpụrụ nduzi doro anya. Nke a pụtara ìhè nke ọma na ngwaahịa aluminom bụ nke a na-atụgharị na-ekpo ọkụ ma ọ bụ ntụgharị oyi.
Oge nzipu: Jul-21-2020