Aero-engine ke e 'ngoe ea likarolo tsa mantlha tsa sefofane.Lebaka ke hobane e na le litlhoko tse phahameng tsa tekheniki 'me ho thata ho e etsa.E le sesebelisoa sa bohlokoa sa matla mosebetsing oa ho fofa ha sefofane, se na le litlhoko tse phahameng haholo bakeng sa lisebelisoa tsa ho sebetsa.E na le thepa ea boima bo bobebe, boima bo phahameng, ho hanyetsa mocheso, ho hanyetsa oxidation le ho hanyetsa kutu, 'me thepa ea boleng bo phahameng ea superalloy e etsa hore e finyelle litlhoko tsa lisebelisoa tsa aero-engine.
Lisebelisoa tsa superalloy li ka boloka ts'ebetso e ntle ka mocheso o ka holimo ho 600 ° C le tlas'a maemo a itseng a khatello ea kelello.Ho hlaha ha lisebelisoa tsa superalloy ke ho fihlela litlhoko tse boima tsa lisebelisoa tsa sejoale-joale tsa sefofane.Ka mor'a lilemo tse ngata tsa ho iphetola ha lintho, li-superalloys li fetohile lisebelisoa tsa bohlokoa bakeng sa lisebelisoa tsa sefofane ho etsa likarolo tse chesang tse chesang.Ho ea ka litlaleho tse amanang le eona, ho li-aero-engines, Tšebeliso ea eona e nka karolo e fetang halofo ea thepa eohle ea enjene.
Lienjineng tsa sejoale-joale, tšebeliso ea lisebelisoa tsa superalloy e batla e le khōlō, ’me likarolo tse ngata tsa enjene li hlahisoa ka li-superalloy, tse kang likamore tse tukang mollo, li-vane tse tataisang, li-blade tsa turbine, le lik’hasete tsa disk tsa turbine, lireng le li-afterburners.Likarolo tse kang likamore tse tukang le li-nozzles tsa mohatla li hlahisoa ka lisebelisoa tsa superalloy.
Tšebeliso ea superalloy ka aeroengine
Ka tsoelo-pele e tsoelang pele ea thekenoloji le ho teba ho tsoelang pele ha tšimo ea lipatlisiso, lipatlisiso tsa li-blades tse ncha tsa kristale tse nang le rhenium le li-superalloys tse ncha li tla tsoela pele ho hlahlojoa.Lisebelisoa tse ncha li tla eketsa matla a macha tšimong ea tlhahiso ea lisebelisoa tsa sefofane nakong e tlang.
1. Lipatlisiso ka li-blades tsa kristale tse le 'ngoe tse nang le rhenium
Liphuputso tse ling li bontšitse hore ha ho sebetsa thepa e nang le motsoako oa kristale e le 'ngoe, lisebelisoa tsa motsoako le lisebelisoa tsa ts'ebetso li lokela ho tsotelloa, hobane likristale tse le' ngoe li hloka ho sebelisoa libakeng tse batlang li le thata, kahoo likarolo tse ling tsa alloying tse nang le liphello tse khethehileng li atisa ho eketsoa. lisebelisoa tsa ho ntlafatsa.thepa e le 'ngoe ea kristale.Ka nts'etsopele ea li-alloys tse le 'ngoe tsa kristale, motsoako oa lik'hemik'hale oa motsoako o fetohile.Linthong tse bonahalang, haeba likarolo tsa sehlopha sa platinum (tse kang Re, Ru, Ir elements) li eketsoa, lintlha tsa lintho tse hanyetsanang W, Mo, Re, le Ta li ka eketsoa.Eketsa kakaretso ea likarolo tseo ho leng thata ho li qhaqha, e le hore likarolo tse kang C, B, Hf li ka fetoloa ho tloha "ho tlosoa" ho ea ho "e sebelisoang";fokotsa litaba tsa Cr.Ka nako e ts'oanang, ho eketsa likarolo tse ling tsa alloying ho ka etsa hore thepa e boloke botsitso bo behiloeng litlhoko tse fapaneng tsa ts'ebetso ea thepa.
Tšebeliso ea mahare a kristale a nang le rhenium e le 'ngoe e ka ntlafatsa haholo ho hanyetsa mocheso oa eona le ho matlafatsa matla a ho hahaba.Ho eketsa 3% rhenium ho motsoako o le mong oa kristale le ho eketsa ka mokhoa o nepahetseng litaba tsa cobalt le likarolo tsa molybdenum ho ka eketsa ho hanyetsa mocheso ka 30 ° C, 'me matla a tšoarellang le ho hanyetsa ha oxidation corrosion le hona ho ka ba ka ho leka-lekana hantle.state, e tla ba molemo bakeng sa ts'ebeliso e kholo ea li-blade tsa kristale tse nang le rhenium e le 'ngoe sebakeng sa sefofane.Tšebeliso ea lisebelisoa tsa kristale tse nang le rhenium e le 'ngoe bakeng sa li-blades tsa turbine tsa aero-engine ke mokhoa oa nakong e tlang.Li-blades tsa kristale tse le 'ngoe li na le melemo e totobetseng mabapi le ho hanyetsa mocheso, matla a mokhathala oa mocheso, ho hanyetsa oxidation le ho hanyetsa kutu.
2. Lipatlisiso ka li-superalloy tse ncha
Ho na le mefuta e mengata ea lisebelisoa tse ncha tsa superalloy, tse tloaelehileng haholo ke phofo ea superalloy, motsoako oa ODS, motsoako oa intermetallic le thepa ea ho itlotsa ka tšepe e phahameng ea mocheso.
Powder superalloy lintho tse bonahalang:
E na le melemo ea sebopeho se ts'oanang, chai e ngata le ts'ebetso e ntle ea mokhathala.
Intermetallic metsoako:
E ka fokotsa boima ba likarolo le ho ntlafatsa ts'ebetso, e loketseng haholo bakeng sa ho etsa litsamaiso tsa ho tsamaisa matla.
Li-alloys tsa ODS li na le:
Ts'ebetso e ntle haholo ea mocheso o phahameng, ho hanyetsa oxidation ea mocheso o phahameng
Lisebelisoa tsa ho itlotsa ka tšepe tsa mocheso o phahameng:
Haholo-holo e sebelisoa ho hlahisa li-bearings tse nang le mocheso o phahameng oa mocheso, e leng ho eketsang matla a ho beleha le ho matlafatsa matla a ho jara.
Ka ts'ebeliso e ntseng e eketseha ea li-tubes tse thata tsa superalloy ka lienjineng tsa aero-enjene, tlhokahalo ea tsona e tla tsoela pele ho eketseha sebakeng sa bokamoso sa sefofane.
Nako ea poso: Mar-02-2023