Ihe ka ọtụtụ n'ime ihe ndị e ji ígwè rụọ na-apụta na gburugburu ikuku, nke nwere ihe ndị na-akpata corrosion na ihe ndị dị ka oxygen, iru mmiri, mgbanwe okpomọkụ, na mmetọ.Nhịhịa ịgba nnu bụ ụdị corrosion ikuku na-ahụkarị ma na-emebi nke ukwuu.
Nzuzu nke nnu na-agụnye ịgbasa ihe ngwọta nnu na-eduzi n'ime ime ihe igwe, na-eduga na mmeghachi omume electrochemical.Nke a na-ebute nguzobe nke mkpụrụ ndụ microgalvanic, na nhazi "ihe ngwọta metal-electrolyte dị ala-dị elu-adịghị ọcha".Nyefe elektrọn emee, na metal na-eme dị ka anode dissolves, na-akpụ ogige ọhụrụ, ya bụ, corrosion ngwaahịa.ion chloride na-ekere òkè dị mkpa na usoro corrosion nke ịgbasa nnu.Ha nwere ikike nnabata siri ike, na-abanye ngwa ngwa n'ime oyi akwa oxide nke igwe ma na-akpaghasị ọnọdụ ngafe nke igwe.Ọzọkwa, ion chloride nwere obere hydration ume, na-eme ka ha na-adaba ngwa ngwa n'elu igwe, na-atụgharị oxygen n'ime oyi akwa metal oxide na-echebe, si otú a na-akpata mmebi ígwè.
A na-ekewa nnwale ịgba nnu n'ime ụdị abụọ bụ isi: nnwale mkpughe gburugburu ebe obibi na nyocha gburugburu ebe obibi nke agbakwunyere n'ụdị arụrụ arụ.Nke ikpeazụ a na-eji ngwa nnwale, nke a maara dị ka ọnụ ụlọ nnwale nnu nnu, nke nwere olu a na-achịkwa ma na-ewepụta ebe ịgbasa nnu n'ụzọ artificially.N'ime ụlọ a, a na-enyocha ngwaahịa maka iguzogide corrosion nnu.E jiri ya tụnyere gburugburu eke, ntinye nnu na gburugburu ebe a na-agba nnu nwere ike ịdị ọtụtụ ugboro ma ọ bụ ugboro iri karịa, na-eme ka ọnụ ọgụgụ corrosion dị ngwa ngwa.Ime ule ịgba nnu na ngwaahịa na-enye ohere maka ogologo oge nnwale dị mkpụmkpụ, yana nsonaazụ na-eyi mmetụta nke ikpughe eke.Dịka ọmụmaatụ, ọ bụ ezie na ọ nwere ike iwe otu afọ iji chọpụta nrụrụ ngwaahịa n'ebe dị n'èzí, ịme otu ule ahụ na gburugburu ebe a na-agba nnu na-eme ka ọ dị mma nwere ike ịmepụta ihe yiri ya n'ime nanị awa 24.
Enwere ike ịchịkọta nha n'etiti nnwale ịgba nnu na oge mkpughe gburugburu ebe obibi dị ka ndị a:
awa 24 nke nnwale ịgba nnu na-anọpụ iche ≈ 1 afọ nke mkpughe eke.
24 awa nke acetic acid spray spray test ≈ afọ 3 nke mkpughe eke.
24 awa ọla kọpa-accelerated acetic acid salt spray test ≈ afọ 8 nke mkpughe eke.
Oge nzipu: Ọktoba 26-2023