1. Dab tsi yog cov khoom siv uas nquag muaj ntawm superalalloy?
Vim li cas inconel 718 yog qhov feem ntau
Balanced Tshuaj Muaj Zog: Nws yog feem ntau tsim ntawm npib tsib xee (50 - 5%), Molybdenum (2.8-3.3%), thiab titanium (0.65-1.15%). Niobium thiab titanium tsim ruaj khov theem (piv txwv li, '' '' '' '' '' -ni₃ (ti, kom muaj kev kub siab rau lub zog thiab creep resistance.
Koj Zoo Tshaj Txhua -} round ua tau:
Nws khaws cov tensile siab (ntau dua los yog sib npaug rau 965 mpa ntawm chav tsev kub) thiab tawm los ntawm 550 mpa ntawm chav sov) txawm nyob rau ntawm qhov kub thiab txias txog 650 degree.
Nws muaj kev qaug zog zoo heev, ua rau nws haum rau kev ntxhov siab ib puag ncig (piv txwv li cov khoom siv sib hloov hauv cov cav).
Nws muaj zoo corrosion thiab oxidation tsis kam nyob rau hauv Harsh Media zoo li dej hiav txwv, siab {} pa roj, thiab tshuaj lom.
Cov Txheej Txheem Zoo Tshaj: Piv rau lwm qhov siab - lub zog superalloys, Inconel 718 yog yooj yim rau Forge, yob, tshuab, thiab WELD. Qhov no txo cov nqi tsim khoom thiab nthuav tawm nws daim ntawv thov tau txais.
Tus nqi - ua hauj lwm zoo: Nws muaj ntau tus nqi pheej yig dua -} {{5} {{6- qhov ntsuas kub.
Lwm cov qhab nia superalloy
Inconel 625: Muaj nuj nqis rau kev ua kom mob corrosion tsis kam, siv hauv kev ua lag luam tshuaj thiab cov khoom siv marine.
Hastelloy C-276: Lub npib tsib xee - molybdenum {}} chromium alloy (piv txwv rau cov khoom haum corrosive (piv txwv li, acid ua).
GH3030 (Suav Txheej Txheem): Lub npib tsib xee - chromium alloy rau tsawg {{} ntxhov siab}, piv txwv li cov kev hloov pauv kub).
HAYES 282: Ib qho tshiab tshaj plaws nickel - raws qib nrog kev txhim kho siab- kub ruaj khov, siv hauv cov roj siab roj.
2. Dab tsi yog qhov kev thov feem ntau ntawm superalloy?
Tub Ntxhais Aerospace / Aviation
Kev ntsuas cov cheeb tsam: Qhov tseem ceeb tshaj plaws rau superalloys.
Turbine tuaj: Nyob hauv qhov siab - kub seem ntawm lub cav (800 {{4 4}} 1,200 degree), lawv ua rau muaj kev ntxhov siab tshaj plaws centrifugal thiab kub. Nickel -} Raws sevasalloys (piv txwv li}} lub tshuab ua liaj ua siab zoo li PWOY 1484 rau cov ntaub ntawv siab muaj peev xwm nrog cov mob no.
Turbine disks: Siv los kho cov tshuab luam yeeb tawg, lawv ua rau muaj kev ntxhov siab ntau yam kev ntxhov siab thiab kev kub ntxhov kub (500-700 degree). Inconel 718 yog thawj cov khoom siv rau cov khoom sib xyaw no vim nws cov kev qaug zog tiv thaiv tsis kam.
Turbine Vanes / Nozzles: Qhia siab siab - roj kub thiab cua sov {{1} -
Kev sib txuas ua ke Chambers: Cov roj hlawv qhov twg hlawv, ua rau muaj kev kub ntxhov txog li 1,600 degree. Superalloys (piv txwv li hastelloy x, inconel 625) yog siv los ua kev sib txuas ua ke thiab cua sov- high kub.
Fasteners thiab cov txheej txheem: High {{{-, bolts, cov txiv ntoo feem ntau ua los ntawm Incinel 718, raws li lawv yuav tsum tau tswj clamping yuam kev kub.
Lwm daim ntawv thov daim ntawv thov loj
Zog Kev Txuag Hluav Taws Xob:
Roj Turbines rau Lub Zog: Turbine hniav, disks, thiab cov xwm txheej siv npib tsib {}}}} khiav superalloys (piv txwv li kev ua haujlwm kub txhais tau tias muaj zog hloov zuj zus kev ua tau zoo).
Lub hwj chim nuclear: Cov Cheebtsam tseem ceeb (piv txwv li, kev ua pa hluav taws xob ua kom sov) Siv cov khoom siv hluav taws xob cua sov (piv txwv li}
Petrochemical Kev Lag Luam:
Siab - kub reactors thiab kev hloov cua sov: Siv Superalloys (piv txwv li, GH3030, hastelloy c-}}}}}}}}}}}}}}}}}}}}}}}}}}}} ecocorbons thiab siv tshuaj lom neeg.
Cov cuab yeej downhole: Hauv cov roj sib sib zog nqus thiab roj zoo, superalalloys walland high (txog 300 degree) thiab siab siab (txog 100 MPA).
Kev Lag Luam Kho Mob: Cobalt -} based supalloys (piv txwv, L605) yog siv rau kev kho mob pob qij txha (piv txwv, hnav tsis kam, thiab corrosion tsis kam nyob rau tib neeg lub cev.
