1. Dab tsi yog li tshwj xeeb txog superalloys?
Zoo heev high - kub ruaj khov: Tsis zoo li cov ntaub ntawv feem ntau uas poob lub zog, lossis cov txheej txheem sib raug zoo (tsis txaus siab rau cov khoom siv kub heev ( Qhov no tau qhib los ntawm lawv cov microstructures tshwj xeeb (xws li precipitated '{{8} {{9} Raws supallloys) thiab kev tsim tawm.
Zoo tshaj corrosion thiab oxidation tsis kam: Lawv daim ntawv tuab, cov duab tiv thaiv oxide, piv txwv li cov chaw sov, acidic actions, lossis cov corrosives. Qhov no txwv tsis pub muaj kev cuam tshuam thiab ncua kev pabcuam lub neej hauv kev ua kom nruj.
Ua kom muaj kev ua tau zoo rau qee qhov kawg: Superalloys tsis yog ib chav kawm ntawv tab sis ib tsev neeg ntawm alloys (Nickal {} bas raws, Piv txwv li, ib leeg - siv cov kab ke ua ke kom tiv thaiv cov kab sauv hauv cov khoom siv tsis kam rau siab siab rau cov cuab yeej siab.
Kev tuav tseg ntawm cov khoom hauv qab - kev nyuaj siab mob: Lawv tuaj yeem tiv thaiv cov kev sib txuas ntawm qhov kub thiab txias, loj hlob ntawm kev lag luam, thiab petregacicals tsis ua hauj lwm, ua rau lawv tsis muaj kev nyab xeeb rau kev nyab xeeb rau- qhov tseem ceeb.
2. Dab tsi yog qhov tsis zoo ntawm Superalloys?
Kev siv ntau heev thiab cov khoom siv: Superallys cia siab rau tsawg, kim, tshuab hluav taws xob, {{} Cov khoom siv tshuab ua ke, kub iTostatic nias). Cov txheej txheem no ua rau lawv cov khoom siv raw thiab ntau lawm tus nqi thiab ntau lawm tus nqi ntau dua li alloys {rau 10 zaug kim dua li cov hlau uas tsis muaj roj txhuas lossis alloys.
Tsis zoo Machinability thiab muaj peev xwm: Lawv lub zog siab (txawm nyob ntawm chav sov) thiab nyuaj Micrtructures (piv txwv, precipitated theem) ua rau lawv nyuaj rau kev siv lub tshuab siv cov cuab yeej tsim qauv. Machining Superalloys yuav tsum muaj cov khoom siv tshwj xeeb (piv txwv li high- Cov nqi ceev, cov nqi zog, thiab cov cuab yeej hnav. Txoj kev sib sau cov txheej txheem zoo li forging los yog dov ntxiv tseem xav tau kub thiab kev ntsuas, ntxiv cov nyom.
Siab ntom thiab lub cev kev nplua: Feem ntau superalloys (tshwj xeeb tshaj yog nickel -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Qhov no ua rau lawv tsis zoo rau qhov hnyav {{8}, lub dav hlau rhiab (xws li lawv tuaj yeem nce tag nrho cov kab ke hnyav thiab txo kev txuag hluav taws xob.
Txwv tsis pub siv sijhawm thiab ib puag ncig cuam tshuam: Cov kev rho tawm thiab ua kom zoo dua ntawm cov khoom siv tsis tshua muaj alloy (piv txwv li, rhenium) yog zog- kev puas tsuaj thiab kev ua kom ib puag ncig. Tsis tas li ntawd, kev rov ua haujlwm superalloys yog technically nyuaj vim lawv cov txheej txheem nyuaj-}} Kev ua haujlwm kom muaj txiaj ntsig), uas yog kim heev thiab tsis xav tau.
Kev ua tau ntxim rau cov qauv tsis ua tiav (hauv qab huab cua): Thaum lub sij hawm heev ruaj, lawv tsis muaj zog tiv thaiv kev puas tsuaj. Piv txwv li, nickel {- based supalloys tej zaum yuav raug kev txom nyem rau kev ntxhov siab yog tias raug rau kev npaj txhij txog kev ntxhov siab ntau ntawm cov kub tsawg.
3. Dab tsi yog qhov zoo ntawm superallloys?
Tshwj Xeebal siab -} kub kev ua haujlwm: Qhov no yog lawv cov kev txhais tau zoo tshaj plaws. Lawv tiv thaiv creep (qeeb deformation nyob rau hauv constant high {{1} Kev qaug zog (tawg los ntawm kev ua kom sov / txias) kom zoo dua li cov alloys pom. Piv txwv li, nickel - based supalloys zoo li Incage {6} Kev siv hauv JET JUR ARCE lub zog hloov pauv thiab ua pa roj av tshuab.
Zoo heev corrosion thiab oxidation tsis kam:}}} Xws li xws li marine sevalwater, los yog siab} {1} Cov txheej txheem oxide ruaj khov, los yog siab { Cobalt -} Raws supallots, tiv thaiv kev tiv thaiv hauv acidic thiab siab} chloride ib puag ncig, ua rau lawv zoo tagnrho rau cov khoom siv tshuaj lom neeg.
Lub neej kev pabcuam ntev thiab kev ntseeg tau: Lawv lub peev xwm tiv thaiv cov mob siab yam tsis muaj kev txwv tsis muaj kev txhais lus nyob rau lub neej sib luag thiab txo cov kev saib xyuas. Hauv Aerospace, piv txwv, superalalloy turbine hniav tuaj yeem ua haujlwm rau ntau txhiab lub davhlau ua ntej hloov chaw, txo nqi rau cov oblines.
Versatility ntawm Alloy hom: Tsev neeg superalloy suav nrog Nickel - Raws li siv (superb hnav tsis kam), thiab siv tau zoo rau kev kub siab). No ntau yam ua rau lawv raug txiav to Kev Siv Hluav Taws Xob Tshwj Xeeb 1}}} {} {{} {chromium Superalalloys).
Sib xyaw nrog kev tsim khoom siab: Ntau Superalloys tuaj yeem ua tiav siv lub xeev {{0} {{{{{1} -}}}}}}}}}}} ostatic nias. Qhov no ua rau cov khoom tsim ntau lawm ntawm cov nyom, ze {}}}}}}}}}}}}}}}}}- kev ua haujlwm.
