Mhangura alloys ane yakanakisa kurwisa mhepo uye yegungwa corrosion, senge silicon bhuronzi,aluminium bronzezvichingoenda zvakadaro.Muzhinji media, inotongwa neuniform corrosion.Iko kune kusimba kwekushushikana kwekuora kwekunetseka mumhinduro muhupo hweammonia, uye kunewo mafomu ekuora emunharaunda akadai segalvanic corrosion, pitting corrosion, uye abrasion corrosion.Dezincification yendarira, dealumination yealuminium bronze, uye denitrification ye cupronickel ndiyo yakasarudzika mafomu ekuora mumhangura alloys.
Munguva yekudyidzana kwemhangura alloys nemhepo uye yemugungwa nharaunda, passive kana semi-passive ekudzivirira mafirimu anogona kuumbwa pamusoro pemhangura alloys, iyo inhibits akasiyana corrosion.Naizvozvo, mazhinji alloys emhangura anoratidza yakanakisa corrosion kuramba munzvimbo dzemuchadenga.
Atmospheric corrosion of copper alloys Atmospheric corrosion yesimbi zvinhu zvinonyanya kuenderana nemhute yemvura mumhepo uye firimu remvura riri pamusoro pechinhu.Hunyoro hwemuchadenga kana kukora kwemhepo yesimbi kunotanga kuwedzera zvakanyanya kunonzi kunyorova.Iyo yakakosha humidity yemhangura alloys uye mamwe akawanda masimbi ari pakati pe50% ne70%.Kusvibiswa kuri mumhepo kune kukanganisa kukuru pakuora kwemhangura alloys.Izvo zvinosvibisa zvine acidic zvakadai seC02, SO2, NO2 mumaguta emumaindasitiri mumhepo inonyungudika mufirimu remvura uye hydrolyzed, izvo zvinoita kuti firimu remvura rive acidified uye firimu rinodzivirira risagadzikana.Kuora kwezvirimwa uye gasi rekupopota rinoburitswa nemafekitari zvinoita kuti ammonia nehydrogen sulfide gasi rivepo mumhepo.Ammonia inonyanya kukurumidza kuora kwemhangura nemhangura alloys, kunyanya kushungurudzika kuora.
Iko kukanganisa kukanganiswa kwemhangura nemhangura alloys munzvimbo dzakasiyana dzekuora kwemhepo kwakasiyana.Corrosion data mune zvakajairwa mugungwa, maindasitiri uye kumaruwa mamiriro emuchadenga akashumwa kwemakore gumi nematanhatu kusvika makumi maviri.Mazhinji maaloyi emhangura akavharwa zvakafanana, uye kukora kuri 0.1 kusvika 2.5 μm/a.Mwero wekuora kwemhangura alloy mumhepo yakaomarara yeindasitiri uye mhepo yemugungwa yeindasitiri yakarongeka yehukuru kupfuura iyo yemhepo yakapfava yemugungwa nemhepo yekumaruwa.Mamiriro ekunze akasvibiswa anogona kuwedzera zvakanyanya kusagadzikana kwekuora kwendarira.Basa riri kuenderera mberi rekufanotaura uye kuronga chiyero chekuora kwemhangura alloys nemhepo dzakasiyana zvichienderana nemamiriro ekunze.
Nguva yekutumira: Jul-04-2022