
Li-superalloys tse thehiloeng ho cobalt ke sehlopha sa lisebelisoa tsa tšepe tse sebetsang hantle tse etselitsoeng ho boloka matla a ikhethang a mochine, botsitso ba holim'a metsi, le ho hanyetsa ho bola ha mocheso o phahameng haholo, hangata ho feta moo li-superalloys tse thehiloeng ho nickel li qalang ho fokola. Ke lisebelisoa tsa lejoe la sekhutlo bakeng sa likarolo tsa bohlokoa libakeng tse batloang haholo, haholo sebakeng sa sefofane, li-turbine tsa khase ea indasteri, le li-implants tsa bongaka.
Ts'ebetso ea bona e phahameng e bakoa ke matrix ea cobalt-chromium e matlafalitsoeng le palo e phahameng ea likaroloana tsa carbide tse thata, tse refractory.
Matla a Ikhethileng a Mocheso o Phahameng: Li-alloys tsa cobalt li bonts'a lintlha tse phahameng tse qhibilihang le ho thatafala ha mocheso le ho hanyetsa ho tsitsa ho feta li-alloys tsa nickel mocheso o ka holimo ho 1000 ° C (1832 ° F). Sena se bolela hore ba hanela ho nolofatsa le ho fetoha ha maemo tlas'a khatello ea maikutlo ho mocheso o haufi le ho qhibiliha.
Ho Ikemela ka ho Fetisisa ho Apara le ho Hanyetsa: Ho thatafala ha bona, hangata ho matlafatsoa ke marang-rang a li-carbide tse thata, ho fana ka khanyetso e ntle ea ho roala, ho roala sekhomaretsi, le ho ferekana. Sena se etsa hore e be tse loketseng bakeng sa lisebelisoa tse shebaneng le ho roala.
Haholo-holo Hot Corrosion & Oxidation Resistance: Theko e phahameng ea chromium (hangata e fetang 20%) e theha sekala se sireletsang, se khomarelang chromium oxide (Cr₂O₃) se hanyetsanang le ho senyeha ha maemo a leholimo a oxidizing le sulfidizing.
Thermal Resistance Resistance: Li ka mamella mekoloko e phetoang ea ho futhumatsa le ho pholile ntle le ho phatloha, thepa ea bohlokoa bakeng sa likarolo tse kang li-vanes tsa turbine.
Ts'ebetso ea cobalt superalloys e tsoa ho mekhoa e 'maloa ea bohlokoa:
Matlafatso ea Tharollo e Tiileng: Lintho tse kang tungsten (W) le molybdenum (Mo) li qhibiliha ka har'a matrix ea cobalt, e sitisang motsamao oa ho kheloha.
Carbide Precipitation: Ho thehoa ha li-carbides tse thata (mohlala, Cr₇C₃, Cr₂₃C₆, WC, TaC) ho pholletsa le microstructure ho fana ka khanyetso e kholo ea ho tsuba le ho apara. Boholo, mofuta le kabo ea li-carbide tsena li bohlokoa haholo ts'ebetsong.
Cobalt Allotropy: Cobalt e ba le phetoho ea mohato ha e futhumatsa, 'me tšobotsi ena e sebelisoa hampe ho ntlafatsa thepa ka kalafo ea mocheso le ts'ebetso ea thermo-mechanical.
Li-superalloys tse thehiloeng ho Cobalt li bohlokoa haholo lits'ebetsong moo ho hloleha e seng khetho.
Aerospace & Power Generation Turbines: E sebelisoa bakeng sa likarolo tse emeng joalo ka:
Li-Turbine Vanes & Nozzle Guide Vanes: Moo mocheso o phahameng ka ho fetisisa oa khase o kopanang le ona 'me ho hanyetsa ho hoholo ho bohlokoa.
Indasteri Wear Components: Motheo oa li-alloys tsa Stellite™, tse sebelisetsoang:
Li-Valve Seats & Trim ka li-valve tsa khatello e phahameng, tse nang le mocheso o phahameng.
Lithapo tse thata le lithupa ho koahela libaka tsa bohlokoa tsa ho roala holim'a lisebelisoa le mochini.
Li-Sleeves tsa Pump, Shafts, le Lithipa tse Sehang.
Li-implants tsa Bongaka: Li sebelisoa ka li-implants tsa masapo (haholo-holo bakeng sa libaka tse nang le tšepe ka tšepe) ka lebaka la ho lumellana ha tsona ho babatsehang, ho hanyetsa ho apara, le ho hanyetsa ho bola 'meleng oa motho.
Tafole e latelang e akaretsa lintlha tsa bohlokoa bakeng sa kakaretso e potlakileng:
| Sebopeho | Tlhaloso | Molemo |
| Base Element | Cobalt (Co), e nang le litaba tse phahameng tsa Chromium (Cr). | E fana ka matrix a mantlha bakeng sa ts'ebetso ea mocheso o phahameng le ho hanyetsa kutu. |
| Ba Matlafatsang Ka Sehloohong | Tungsten (W), Molybdenum (Mo), le Carbon (C) bakeng sa sebopeho sa carbide. | E fana ka matla a mocheso o phahameng, khanyetso ea ho thella, le ho hanyetsa ho roala. |
| Mocheso oa ho sebetsa | E phahameng haholo, e ipabola ka holimo ho 1000°C (1832°F). | E nolofalletsa enjene ho sebetsa hantle le ho sebetsa maemong a feteletseng. |
| Thepa ea Bohlokoa | Ho thatafala ho Chesang, ho hanyetsana le Creep, Wear & Corrosion Resistance. | Motsoako o ikhethileng bakeng sa maemo a thata ka ho fetisisa a ts'ebeletso. |
| Mefuta e Tloaelehileng | Lisebelisoa tsa cast, bar/plate e betliloeng, phofo bakeng sa HIP, li-alloys tse thata. | Ho etsa lintho tse fapa-fapaneng bakeng sa likarolo tse peli tse rarahaneng tsa sebopeho se haufi le marang-rang le liphahlo tse sireletsang. |
| Liindasteri tsa mathomo | Sepakapaka, Pheliso ea Matla, Bongaka, Lik'hemik'hale le Petrochemical. | Thepa ea khetho moo mocheso o feteletseng le liaparo li kopanang teng. |
Ka kakaretso, Li-Superalloys tse thehiloeng ho Cobalt ke lisebelisoa tsa bohlokoa empa tse bohlokoa tse sutumetsang meeli ea boenjiniere ba mocheso o phahameng. Le hoja hangata e theko e boima haholo ebile e le e teteaneng ho feta li-superalloy tsa nickel, ts'ebetso ea tsona e ke keng ea lekanngoa libakeng tse itseng-haholo-holo matla a mocheso o phahameng haholo, mokhathala oa mocheso le ho hanyetsa ho apara-li sireletsa karolo ea bona ea bohlokoa theknoloji e tsoetseng pele.