
Li-alloys tse entsoeng ka tšepe tse nang le mocheso o phahameng oa tšepe ke sehlopha sa lisebelisoa tsa tšepe tse nang le tšepe (Fe) e le ntho e ka sehloohong, e entsoeng ho boloka matla a matle a mochine le ho hanyetsa ho senyeha (joaloka oxidation) ka mocheso o phahameng, hangata ho tloha ho 540 ° C ho ea ho 760 ° C (1000 ° F ho 1400 ° F). Lebitso le "sebelitsoeng" le bonts'a hore li bōpiloe ke mekhoa ea thermomechanical e kang hot rolling, forging, kapa extrusion, e ntlafatsang microstructure ea bona ho fana ka motsoako o motle oa matla, ductility le masela.
Li sebetsa e le tharollo e bolokang chelete e ngata le e fapaneng haholo bakeng sa lisebelisoa tse ngata tsa mocheso o phahameng, ho koala lekhalo la ts'ebetso pakeng tsa litšepe tse sa hloekang le li-nickel tse turang haholo kapa li-superalloys tse thehiloeng ho cobalt.
Matla a Molemo a Mocheso o Phahameng & Resistance ea Creep: Ba hanana le ho fetoha le ho lieha, ho itšetlehile ka nako (creep) tlas'a mojaro o entsoeng ka mocheso o phahameng, le hoja mocheso oa bona o ka holimo oa mocheso o le tlase ho feta oa li-superalloy tse thehiloeng ho nickel.
Khahlano e Ntle ea Oxidation & Corrosion Resistance: Ntho ea bohlokoa ke bokhoni ba bona ba ho theha sekala se sireletsang, se khomarelang chromia (Cr₂O₃) holim'a metsi, ka lebaka la litaba tse phahameng tsa chromium (hangata 12-28%). Limaraka tse ngata li boetse li na le silicon (Si) le aluminium (Al) ho theha sekala se tsitsitseng le ho feta.
Katleho ea Litšenyehelo: Ho ipapisitsoe le matrix a tšepe, li theko e tlase haholo ho feta mefuta e meng ea nickel kapa cobalt, e leng se etsang hore e be thepa ea boikhethelo bakeng sa lits'ebetso tse kholo kapa tse hlokang litšenyehelo.
Thepa e ntle: Sebopeho sa bona se entsoeng se bolela hore ba ka etsoa habonolo, ba etsoa ka mochini, 'me ba tšeloa likarolo tse rarahaneng ba sebelisa mekhoa e tloaelehileng ea indasteri.
Ts'ebetso e phahameng ea mocheso oa li-alloys tsena e finyelloa ka mekhoa e mengata ea synergistic:
Ho Matlafatsa Tharollo e Tiileng: Lintho tse kang molybdenum (Mo), tungsten (W), le chromium (Cr) li qhibiliha ka har'a matrix ea tšepe, ho sitisa motsamao oa ho kheloha le ho fana ka matla a motheo.
Ho Matlafatsoa ha Carbide Precipitation: Ho thehoa ha li-carbides tse tsitsitseng (mohlala, M₂₃C₆, MC, moo M e Cr, Mo, Nb) meeling ea lijo-thollo le ka har'a lijo-thollo ho thusa ho phunya li-dislocation le meeli ea lijo-thollo, ho matlafatsa matla le ho hanyetsa ho tsuba.
Pula ea Nitride le Carbonitride: Li-alloys tse ling, likarolo tse kang niobium (Nb) le titanium (Ti) li etsa li-nitrides tse ntle kapa carbonitrides tse fanang ka matla a eketsehileng a pula.
Microstructural Stability: Liqapi tsa alloy li leka-lekane ho hanela ho tsieleha ha mekhahlelo ena e matlafatsang le ho thehoa ha metsoako e kotsi ea intermetallic nakong ea nako e telele ea mocheso.
Li-alloys tse entsoeng ka tšepe tse nang le mocheso o phahameng oa tšepe li sebetsa liindastering tse ngata:
Pheliso ea Matla:
Li-Turbine Blades & Discs ka har'a li-turbine tsa mouoane le mekhahlelo e tlase ea mocheso oa li-turbine tsa khase.
Boiler Tubing, Superheater & Reheater Tubes, le li-heaters tse futhumatsang ka har'a lifeme tsa matla a mafura.
Likoloi:
Matlo a Turbocharger (Turbine Housing) a tlamehang ho mamella mocheso oa khase ea ho tsoa.
Exhaust Manifolds le downpipes.
Libaka tsa Liindasteri le Phekolo ea Mocheso:
Li-Radiant Tubes, Muffles, Trays, le libaskete tse sebelisetsoang ho kenya carburizing, annealing le mekhoa e meng ea ho phekola mocheso.
Petrochemical & Refinition:
Li-tubing bakeng sa li-coil tsa sebōpi le liphaephe bakeng sa melapo e phahameng ea mocheso ho li-crackers le li-reformers.
Tafole e latelang e akaretsa lintlha tsa bohlokoa bakeng sa kakaretso e potlakileng:
| Sebopeho | Tlhaloso | Molemo |
| Base Element | Tshipi (Fe), ka holimo Chromium (Cr) dikahare. | E fana ka motheo o sebetsang hantle o nang le khanyetso ea tlhaho ea oxidation. |
| Mokhoa oa Tlhahiso | Ts'ebetso ea Thermomechanical (Hot Rolling, Forging). | Litholoana ka mokhoa o ts'oanang, sebopeho se setle se nang le ductility e ntle le ho tiea. |
| Ba Matlafatsang Ka Sehloohong | Tharollo e tiileng (Mo, W); Carbides (Cr, Nb, Mo). | E fana ka motsoako o leka-lekaneng oa matla a mocheso o phahameng le botsitso ba microstructural. |
| Mocheso Range | Tshebetso e ntle ho fihla ho ~ 760°C (1400°F). | E tlatsa lekhalo la bohlokoa la ts'ebetso lipakeng tsa litšepe tse tloaelehileng le li-superalloy tsa nickel. |
| Molemo oa Bohlokoa | Tekanyetso e nepahetseng ea ts'ebetso, bokhoni le litšenyehelo. | Tharollo ea moruo ka ho fetisisa bakeng sa liphephetso tse ngata tsa boenjiniere ba mocheso o phahameng. |
| Li-alloys tse tloaelehileng le Mefuta | Austenitic (mohlala, 304H, 316H, 321H, 347H); Ferritic (mohlala, 446); Pula-Hardenable (mohlala, A-286, 17-4PH). | E fana ka khetho e pharaletseng bakeng sa litlhoko tse fapaneng tsa mocheso, matla le kutu. |
Ka kakaretso, Lisebelisoa tse entsoeng ka tšepe tse entsoeng ka tšepe e phahameng ke sehlopha sa lisebelisoa tsa mantlha le tse fapaneng tse nolofalletsang karolo e kholo ea boenjiniere ba sejoale-joale ba mocheso o phahameng. Tsoelopele ea bona e bonts'a ntlafatso e ntle ea litšenyehelo le ts'ebetso, e leng se etsang hore e be tsa bohlokoa haholo bakeng sa lits'ebetso ho tloha koloing ea lelapa ho isa setsing sa motlakase se fanang ka motlakase oa sona.