Kusetshenziswa kakhulu ingxubevange ye-titanium emikhakheni yokukhiqiza yezimboni ngenxa yesilinganiso sazo esiyingqayizivele samandla esisindo, ukumelana nokuqhekeka, kanye nokumelana okuphakeme nokugqwala.Inani elikhulayo lezinkampani likhetha ukusebenzisa i-Titanium alloy TC11 esikhundleni se-TC4 ekukhiqizeni ama-impeller nama-blades, ngenxa yempahla engcono yokumelana nokuvutha kanye nekhono lokusebenza ekushiseni okuphezulu isikhathi eside.Ama-alloys e-Titanium ayizinto zakudala okunzima ukuzisebenzisa emshinini zamandla azo aphezulu emvelo agcinwe ezingeni lokushisa eliphakeme kanye nokuhanjiswa kwe-thermal okuphansi okuholela emazingeni okushisa aphezulu.Kwezinye izingxenye ze-aero-injini, njengama-impeller, anezindawo ezisontekile, kunzima ukwanelisa izidingo zekhwalithi ephezulu nephezulu ngokusebenzisa nje ukugaya.
Enjinini yemoto yangaphakathi evuthayo, i-rotor ye-turbocharger ibe negalelo ekwandeni kwakho kokubili ukusebenza kahle kwamandla kanye nokunciphisa uphethiloli, ngoba igesi ephumayo ikhuthaza ukusebenza kahle ngaphandle kokusetshenziswa okwengeziwe kukaphethiloli.Kodwa-ke, i-rotor ye-turbocharger ine-drawback ebulalayo ebizwa nge-''turbo-lag'' ebambezela ukusebenza okuzinzile kwe-turbocharger ngaphansi kuka-2000 rpm.I-Titanium aluminide inganciphisa isisindo sibe uhhafu we-turbocharger evamile.Ngaphandle kwalokho, ama-alloys e-TiAl anenhlanganisela yokuminyana okuphansi, amandla athile aphezulu, izakhiwo ezinhle kakhulu zemishini, nokumelana nokushisa.Ngokufanelekile, ama-alloys e-TiAl angaqeda inkinga ye-turbo-lag.Kuze kube manje, ukukhiqizwa kwe-turbocharger, i-powder metallurgy kanye nenqubo yokuphonsa sekufakiwe.Kodwa-ke, kunzima ukusebenzisa inqubo ye-powder metallurgy ekwenzeni i-turbocharger, ngenxa yokungazwakala kahle kwayo kanye nokushisela kwayo.
Ngokombono wenqubo eyongayo, ukutshala izimali kungase kubhekwe njengobuchwepheshe bomumo wezomnotho we-TiAl alloys.Kodwa-ke, i-turbocharger inakho kokubili okugobile kanye nezingxenye zodonga ezincane, futhi alukho ulwazi olufanele njengokugayeka kanye noketshezi olunamazinga okushisa esikhunta, izinga lokushisa elincibilikayo namandla amaphakathi.Ukumodela kokulingisa kunikeza indlela enamandla neyongayo yokufunda ukusebenza kahle kwamapharamitha ahlukahlukene wokulingisa.
Ireferensi
Loria EA.I-Gamma titanium aluminides njengezisetshenziswa zesakhiwo ezingaba khona.I-Intermetallics 2000;8:1339e45.
Isikhathi sokuthumela: May-30-2022