Site a microscopic ele ihe anya, e nwere ọtụtụ pinholes na mkpuchi, na size nke pinholes zuru ezu ikwe ka mpụga corrosive media (mmiri, oxygen, chloride ion, wdg) banye n'ime mkpụrụ, na u n'okpuru ụfọdụ. iru mmiri dị n'akụkụ, ihe na-eme corrosion filamentous.Ka ihe mkpuchi ahụ na-abawanye, obere pinholes, na mma nguzogide corrosion nke mkpụrụ.Dị ka e gosiri na ọnụ ọgụgụ ahụ, mkpuchi mkpuchi dị iche iche na-emetụta nguzogide corrosion.Nsonaazụ ule na-egosi na mgbe mkpuchi mkpuchi dị n'elu 20μm, mmetụta nguzogide corrosion na-akwụsi ike.
Nchekwa mkpuchi:
Ịma mkpuchi mkpuchi na nhazi na-emetụtakwa nguzogide corrosion ikpeazụ nke ngwaahịa mkpuchi agba.Ọ bụrụ na ìhè mere nke oyi Rolling isi efere (bụghị gụnyere plating) ozugbo na MCL, n'ihi na corrosion ngwaahịa nke ígwè rụrụ mfe absorption nke mmiri, na ọ dịghị nke abụọ nchebe, otú ya corrosion ọsọ ngwa ngwa, ma ọ bụrụ na a pụtara ọkpụrụkpụ nke galvanized zinc. (aluminom plating zinc / aluminium magnesium) mkpụrụ, ọ nwere ike ịrụ ọrụ nke "firewall", ga-eme ka nguzogide corrosion nke ngwaahịa dịkwuo mma.
Oge nzipu: Jun-10-2022