Corrosion bụ ihe a na-eji eme ihe na-akpali akpali ma ọ bụ electrochemical mmeghachi omume ya na ihe gbara ya gburugburu. Ma na ndụ anyị kwa ụbọchị, ma ọ bụ na-emepụta ihe, na-emepụta ihe, site na obere corrosion, ụgbọ ala, àkwá na corrosion ndị ọzọ. Corrionion ga-akpata mfu akụ na ụba, ma na-eduga n'osisi nchekwa, ọ dịghị mkpa nke mgbochi corrosion.
Na ala oyi akwa nke mkpụrụ, a ga-emepụta ọnọdụ mmeghachi omume mbụ. N'ihi ọnụnọ oxygen na ikuku, mmeghachi omume na-adị n'ụdị okike, ya mere makwaara dị ka ihe nkiri oxide (poof). Nke a oyi akwa na-abụkarị gịrịg ma na-egbochi ihe ọzọ.
N'elu akwa mmeghachi omume, ihe ndị na-agbakọ na n'ígwé. Ọtụtụ mgbe, nke mbụ bụ mmiri, nke, n'ihi amphotoric agwa nke igwe mara mma, na-emeghachi omume na mmeghachi omume nke mbụ, na-akpụ otu hydroxide na-eme ka etinyekwuo. Oyi akwa a bụ oyi akwa oyi, nke na-agbụ ma sie ike ịmịgharịa. A na-esote oyitorp a oyiso ahụ na-esote oyi remartor na-esochi, nke nwere moolarị na-adịghị mma ma dochie ya ngwa ngwa.
Ihe nkiri mbụ oxide bụ ihe kachasị mkpa nke iguzogide nguzogide, nke na-eme ka ihe nkiri ahụ sie ike, sie ike na-eguzogide. N'aka ozo, ekwesiri ịmalite nchebe corrosion n'oge e guzobere na nkwụsi ike nke ihe nkiri kacha mma (POF). Dabere na ihe eji eme ọla, mgbakwunye (dịka ndị na-eme ihe nkiri, ndị na-edozi ahụ) chọrọ. Corrosion na-amalitekarị na ihe nkiri nke ihe nkiri nke mbụ oxide, mana na igwe anaghị agba nchara bụ steepụ na-akwụ ụgwọ n'ihi ọnụnọ nke ihe mejupụtara (karịsịa chromium).
Corrosion zuru oke na ndụ nwere ụdị okwu dị iche iche dị iche iche, ka anyị leba anya n'ụdị corrosion asaa dị mkpa.
1. Eriri Erisosion:A na-edobe igwe a na-agbaze ihe fọrọ nke nta ka ọ dị n'elu elu. Ọ bụ ụdị corrosion kachasị na-abụkarị mmiri ma ọ bụ ikuku ruru unyi.
2. Corvice Corrosion:Ọkpụkpụ dị n'etiti mital ma ọ bụ ndị otu owuwu nwere ike ibute nnukwu corrosion n'ihi na a na-eji capillary mee ihe ma nwee ike iwepụta nnukwu iche iche iche iche. Enwere ike igbochi nke a nke ọma site na njitụ aka njitụ aka.
3. Kpọtụrụ Corrosion:Electrochemical corrosion na-esite na ọla na-efe efe na-akpọtụrụ ibe gị mgbe n'otu oge na Electrolyte, ya na otu ọla na-eduzi na ngwakọta ngwa ngwa. Enwere ike igbochi ya site na ịhọrọ ihe kwesịrị ekwesị ma ọ bụ ịkwụsị ihe omume n'etiti ihe.
4. Onger:Na-arụpụta ihe na-arụpụta, na-akụ ma ọ bụ pinpint. Ọ na-abụkarị ihe na-emebi emebi oyi akwa ahụ, dị ka pores na mkpuchi ma ọ bụ chloride ero na oyi akwa.
5. Intersosion:tumadi ferrite cr na crini mustaitatic ísìsìsì ala, a na-ebebigharị ya, corrosion a ga-eme ka njikọ dị n'etiti a na-emebi emebi. Corfranion corrosion nwere ike ime ka igwe ahụ ghara ịdị ike ma na-akwanyere ya ike, ọgwụgwọ kwesịrị ekwesị iji gbochie corrosion nke ụlọ.
6. Dewer corrosion:Corwa-Point Corrisonion na-ezo aka na uzuoku na-ezo n'ihi na mmiri na-ajụ oyi, igwe anaghị agba nchara, ga-echedo ya na nchekwa kwesịrị ekwesị.
7.Na mgbasa ozi corrosive, mgbe ọ nọ n'okpuru nrụgide ahụ ga-etolite cracks, karịsịa na chlorine na ngwọta alkali siri ike, ga-eduga na crin mustanitatic steel n'ime mgbawa corrosion.
Oge Post: Mee-21-2024