1. Atmospheric corrosion: kusvibiswa kwemhepo kwezvinhu zvesimbi kunonyanya kuenderana nemhute yemvura mumhepo uye firimu remvura riri pamusoro pezvinhu. Hunyoro hwemuchadenga hunodanwa kuti hunyoro hunokosha apo kukora kwemhepo yesimbi kunotanga kuwedzera zvakanyanya. Humidity yakaoma yemhanguraalloy nedzimwe simbi dzakawanda dziri pakati pe50% ne70%. Kusvibiswa kwemuchadenga kune kwakakosha kusimudzira mhedzisiro pakuora kwemhangura alloy. Kuora kwekudyara uye fekitori yekupedza gasi, ammonia uye hydrogen sulfide gasi mumhepo, ammonia inomhanyisa zvakanyanya kukora kwemhangura nemhangura alloy, kunyanya kusagadzikana ngura. C02, SO2, NO2 uye zvimwe zvinosvibisa zvine acidic mudhorobha maindasitiri mumhepo zvinonyungudika mufirimu remvura uye hydrolyze, zvichiita kuti firimu remvura rive acidified uye firimu rinodzivirira kusagadzikana.
2. Splash zone corrosion: maitiro ekuora kwemhangura alloy munzvimbo inoputika yemvura yegungwa iri padyo neiyo iri mumhepo yegungwa. Chero ipi zvayo alloy yemhangura ine yakanaka corrosion kuramba kune yakaoma Marine atmospheres ichavawo negora rakanaka rekudzivirira munzvimbo yesplash. Iyo spatter zone inopa okisijeni yakakwana kuti ikurumidze kuonda kwesimbi, asi inoita kuti mhangura nemhangura alloy irambe isina kujeka. Mwero wekuora kwemhangura alloys akafumurwa kunzvimbo yekupfapfaidza kazhinji haipfuure 5μm/a.
3. Stress corrosion: mwaka kutsemuka kwendarira inomiririra inomiririra yekushungurudzika corrosion yemhangura alloy. Kutsemuka kwemwaka, kwakawanikwa mukutanga kwezana remakore rechi20, kwakatsemuka nechepamusoro pegoko rinomonereka richienda kumusoro wehondo. Chiitiko ichi chinowanzoitika munzvimbo dzinopisa, zvikuru munguva yekunaya kwemvura, nekudaro zita rekuti mwaka cleft. Nekuti ine hukama neammonia kana ammonia derivatives, inonziwo ammonia crack. Muchokwadi, kuvepo kweokisijeni uye mamwe maoxidants, uye kuvepo kwemvura zvakare akakosha mamiriro ekunetsekana kuora kwendarira.
4. Decomposition corrosion: brass dezinc imwe yeanonyanya kufanana nemhangura alloy decomposition corrosion, inogona kuperekedzwa nekushungurudzika kwemaitiro ekuora panguva imwe chete, inogonawo kuitika yoga. Kune nzira mbiri dze dezincification: imwe ndeye lamellar shedding type dezincification, inoratidza yunifomu corrosion fomu, kukuvadza kudiki pakushandiswa kwezvinhu. Imwe ndiyo yakadzika bhaudhi-yakafanana yekusimudzira mhando ye dezincization, muchimiro chegomba corrosion, zvekuti simba rezvinhu rakaderera zvakanyanya, kukuvadza kukuru.
5. Marine environment corrosion: copper alloy corrosion muMarine environment kuwedzera kune Marine atmosphere, pane mvura yegungwa inoputika nzvimbo, tidal range uye nzvimbo yakazara yekunyudza.
Nguva yekutumira: Jun-27-2022