Kev kho cua sov yog cov txheej txheem pivotal rau superalloys, ua kom muaj zog, thiab microstration ruaj khov-tshwj xeeb yog nyob rau hauv cov huab cua sov thiab muaj kev ntxhov siab. Cov txheej txheem tshwj xeeb sib txawv raws li cov sib xyaw ua ke (Nickel-raws li, lossis nws cov ntawv thov, tab sis cov txuj ci tseem ceeb suav nrog:
Kev daws Annealing
Cov kauj ruam no cuam tshuam nrog cua sov rau kev kub siab (feem ntau 900-1250℃(piv txwv li, 'lossis carbides dolt daws teeb meem. Sai sai txias (quenching hauv dej, roj, lossis yuam huab cua) raws li "khov" Qhov no micruction ua ntej los ntawm kev hloov pauv. Siv annealing txhim kho ductility txhim kho thiab npaj cov alloy rau yav dhau los ntxiv dag zog ntawm cov nag lossis daus. Piv txwv li:
Nickel-baid inconel 718 yog kev daws-anloaled ntawm ~ 980 Qib rau yaj "(Ni₃nb) precipitates, kom ntseeg tau tias yog supersaturated evrix.
Cobalt-based Haynes 25 Undergoes Anchinging ntawm ~ 1150 Qib Rau Homogenize nws cov chromium thiab tungsten faib.
Kev laus (nag lossis daus ua kom tawv)
Tom qab tov annealing, kev laus koom nrog cua sov lub alloy rau ncua sijhawm (600-850 degree) rau cov sij hawm txuas ntxiv, tusyees dispersed intermetallic precipitates. Cov no precipitates (xws li, '-ni₃ (al, ti) nyob rau hauv qee lub cibalt alloys) ua raws li cov nyom rau kev rho tawm lub zog, ruaj khov ua lub zog. Ntau Superalloys siv ntau qib kev laus rau kev ua tau zoo tshaj plaws:
Inconel 718 siv ob-kauj ruam ua haujlwm: 720℃rau 8 teev (rhuab-txias rau 8 xyoo.
René 95, lub zog-zog ntawm Alloy, yog hnub nyoog ntawm 870℃rau 1 teev}℃rau 24 teev kom sib npaug.
Kub yogostatic nias (hip)
Hip sib txuas ua ke kub (txog 1200 degree) thiab kev kub siab (piv txwv li siab) kom tshem tawm cov roj av (thiab) veows, thiab homogenize microstructures. Nws yog qhov tseem ceeb tshaj plaws rau cam khwb cia los yog hmoov-metallurgy supalloys, xws li Crystal Nickel-based alloy), txhim kho kev qaug zog tsis zoo thiab txo cov kev ua tsis taus pa tsis zoo.
Hais Txog Kev Sib Koom Tes Ceev
Ua tom qab machining, lossis sib sau ua ke, cov txheej txheem no ua kom muaj kev ntxhov siab ntau yam tsis muaj kev hloov kho lub hauv paus me me. Nws tiv thaiv kev tawg thaum ua haujlwm, qhov tseem ceeb rau cov khoom xws li foob pob hluav taws lossis nuclear reactor.
Lis loj loj optimizations
Tej kev kho cua sov tuaj yeem tswj cov txhuv loj rau kev sib npaug: cov hmoov nplej zoo heev txhim kho cov creep tsis txhim kho qhov kub. Piv txwv li:
Kev siv hluav taws xob lim dej (raug rau kev hloov siab kev ntxhov siab) siv cov superalloys nplua (piv txwv li, Udimet 720) ntawm kev tswj kom txias thaum muaj kev sib tw txias thaum annealing.
Tururble hniav yas (raug rau cov cua sov heev) feem ntau siv cov coarse-grained lossis ib leeg-siv lead ua si supalloys (piv txwv li ntawm 1480) kom ua tiav cov ntxig.
Txhais cov "superalloy" superalloy vim yog lub zog: tensile, kev ntxhov siab hom (corrosion), oxidation) txhua txoj haujlwm ua si. Txawm li cas los xij, ob peb supartloys sawv rau qhov tshwj xeeb muaj zog hauv cov xwm txheej tshwj xeeb:
GrX-810
Tus 3D-luam tawm npib tsib xee-based superalloy tsim los ntawm NASA, GRX-810 cov khoom pov thawj txawv txawv lub zog thiab kav ntev. Nws yog muaj zog ob zaug li lub xeev-ntawm-art superalloys (piv txwv li ntawm 1,000 zaug tiv thaiv kev ntxhov siab (kev ntxhov siab qeeb). Nws lub zog tshwm sim los ntawm kev tshwj xeeb microstructure ntawm nanoscale precipitates thiab oxides, ua rau nws zoo tagnrho rau hypersonic tsheb thiab cov pob zeb tshuab.
René 95
Ib npib tsib xee-raws li cov superalloy dav siv nyob rau hauv ib lub zog, rené, txog li 1,600 mpa ntawm chav tsev kub) thiab nkag rau ntawm cov chaw kub. Nws lub zog bems los ntawm cov network ntom nti ntawm 'precipitates, ua rau nws xaiv qhov kev xaiv zoo tshaj plaws rau cov kev ntxhov siab zoo ib yam li cov kab hlau siab.
Alloy 718plus
Ib qho kev hloov siab ntawm inconel 718, 718plus hloov "precipitates nrog ntau ruaj khov dua li 1,300 mpa kom zoo dua li 100 txog 700 degree).
Cobalt-raws li alloys (piv txwv li, Hinnes 188)
Thaum feem ntau tsawg dua li cov npib tsib xee nyob rau hauv chav tsev kub, cob qhia qhov zoo li Haynes 188 Excel nyob rau hauv high-olidation tiv taus (txog li 1,100 degree). Lawv lub zog yog muab los ntawm cov teeb meem-kev daws teeb meem los ntawm tungsten thiab chromium, ua rau lawv tseem ceeb rau dav hlau cav sib txuas rau chav ua ke.
GrX-810Feem ntau yog hais txog qhov muaj zog tshaj plaws ntawm kev kub siab thiab cov plawg siab, thaum muaj hnub nyoog rau hauv chav-kub thiab cua kub kub tensile muaj zog. Qhov "muaj zog tshaj" daim ntawv lo kawg yog nyob ntawm cov qauv kev ua tau zoo tshwj xeeb.
