Ọla kọpa alloycorrosion
ikuku corrosion
Nrụrụ ikuku nke ihe igwe na-adabere na ikuku mmiri na ikuku na ihe nkiri mmiri dị n'elu ihe ahụ.A na-akpọ iru mmiri dị n'ime ikuku mgbe ọnụ ọgụgụ corrosion nke ikuku igwe na-amalite ịba ụba nke ukwuu.Iru mmiri dị oke egwu nke ọla kọpa alloys na ọtụtụ ọla ndị ọzọ dị n'etiti 50% na 70%.Mmetọ nke ikuku na-enwe mmetụta dị ukwuu na nrụrụ nke ọla kọpa alloys.
Mbibi nke osisi na ikuku ikuku nke ụlọ ọrụ na-emepụta na-eme ka amonia na hydrogen sulfide gas dị na mbara igwe.Amonia na-eme ka corrosion nke ọla kọpa na alloys ọla kọpa dịkwuo ngwa ngwa, ọkachasị nrụrụ aka.Ihe mmetọ acidic dị ka C02, SO2, NO2 na ikuku ụlọ ọrụ mepere emepe na-agbaze na fim mmiri na hydrolyzed, nke na-eme ka ihe nkiri mmiri ahụ dị acidified na ihe nkiri nchebe na-akwụsi ike.
splash zone corrosion
Àgwà corrosion nke ọla kọpa alloys na mpaghara mmiri mmiri na-efesa dị nnọọ nso na mpaghara ikuku ikuku.Alloy ọla kọpa ọ bụla nwere ezigbo nguzogide corrosion na ikuku mmiri siri ike ga-enwekwa ezigbo nguzogide corrosion na mpaghara splash.Mpaghara splash na-enye oxygen zuru oke iji mee ka corrosion nke ígwè dị ngwa ngwa, mana ọ na-eme ka ọ dịkwuo mfe maka ọla kọpa na ọla kọpa alloys ịnọgide na-agafe agafe.Ọnụego corrosion nke alloys ọla kọpa ekpughere na mpaghara spatter anaghị agafe 5 μm/a.
corrosion nrụgide
Quaternary cracking nke ọla bụ ihe nnọchianya nke nrụgide corrosion nke ọla kọpa alloys.Achọpụtara mgbawa n'oge na mmalite narị afọ nke 20 ma na-ezo aka na mgbawa dị n'akụkụ akụkụ mgbọ ebe ọ na-adaba n'isi agha.Ihe omume a na-emekarị na okpomọkụ, karịsịa n'oge mmiri ozuzo, ya mere a na-akpọ ya oge mgbawa.N'ihi na ọ metụtara amonia ma ọ bụ amonia, a na-akpọkwa ya amonia cracking.N'ezie, ọnụnọ oxygen na ndị ọzọ oxidants, yana ọnụnọ nke mmiri, bụkwa ọnọdụ dị mkpa maka nrụgide corrosion nke brass.Gburugburu ndị ọzọ nwere ike ịkpata mgbawa corrosion nke ọla kọpa gụnyere: ikuku, mmiri dị ọcha, na mmiri osimiri nke SO2 meruru oke;sulfuric acid, nitric acid, uzuoku, na aqueous ngwọta dị ka tartaric acid, acetic acid, na citric acid, amonia na mercury eji ihicha akụkụ.
Nbibi ire ere
Brass dezincification bụ ụdị ụdị ọla kọpa alloy de-composition corrosion, nke nwere ike ime n'otu oge na usoro corrosion nrụgide, ma ọ bụ ọ nwere ike ime naanị ya.E nwere ụdị abụọ nke dezincification: otu bụ layered exfoliation ụdị dezincification, nke dị n'ụdị edo corrosion na dịtụ obere emerụ iji ihe;A na-ebelata ike nke ihe ahụ nke ọma, na ihe ize ndụ dị ukwuu.
Corrosion na gburugburu mmiri
Na mgbakwunye na mpaghara ikuku nke mmiri, nrụrụ nke ọla kọpa na gburugburu mmiri na-agụnyekwa ebe mmiri na-agbapụta mmiri, ebe mmiri na-agbapụta na mpaghara imikpu.
Oge nzipu: Jul-01-2022