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Cov khoom siv aviation-qib siab muaj zog 0Cr13Ni8Mo2Al (13-8Mo) cov hlau tsis xeb uas tau los ntawm nag lossis daus
Cov txiaj ntsig ntawm kev ua tau zoo ntawm cov khoom siv
1. Kev sib xyaw ua ke zoo meej ntawm lub zog siab thiab kev ua siab tawv
Kev tsim cov qauv tshwj xeeb:
Cr | Nyob rau hauv | Rau | Al |
12.25% -13.25% | 7.5% -8.5% | 2.00% -2.50% | 0.90% -1.35% |
Los ntawm kev kho cua sov (H950 thiab lwm lub xeev), lub zog tensile tuaj yeem ncav cuag siab dua 1515 MPa thiab lub zog tawm tuaj yeem ncav cuag siab dua 1415 MPa, thaum tswj kev ntev txog li 10% thiab lub zog cuam tshuam ntawm 39 J, uas zoo dua li cov hlau tsis xeb martensitic ib txwm muaj.
Cov khoom siv txhuas (Al) tsim cov khoom sib xyaw NiAl intermetallic, uas precipitates thaum lub sijhawm laus kom ua tiav cov dej nag, thaum ntxiv molybdenum (Mo) ntxiv txhim kho lub zog, toughness thiab tempering tsis kam ntawm cov khoom.
2. Kev tiv thaiv xeb zoo heev
Cov chromium ntau ua rau muaj kev tiv thaiv corrosion zoo, tshwj xeeb tshaj yog nyob rau hauv lub xeev laus, nws qhov kev tiv thaiv rau kev ntxhov siab corrosion cracking (SCC) zoo dua li ntawm cov hlau tsis xeb uas tau los ntawm nag lossis daus xws li 17-4PH.
Nws ua tau zoo heev hauv dej hiav txwv, huab cua noo thiab cov chaw tsuag ntsev tsis muaj zog, thiab tsim nyog rau kev pabcuam mus sij hawm ntev hauv cov chaw ib puag ncig hnyav.
3. Kev ua tau zoo heev thiab kev tawg ua kom tawv
Kev siv lub tshuab nqus tsev ob zaug ua rau cov oxide thiab cov pa phem tsawg dua ([O]≤20ppm, [N]≤60ppm), ua rau lub zog qaug zog siab thiab qhov tawg tsawg.
Nws tseem tuaj yeem tswj tau lub zog siab thiab ruaj khov hauv qhov kub siab (≤430 ℃) ib puag ncig thiab muaj kev tiv thaiv zoo.
4. Kev ua tau zoo ntawm cov txheej txheem
Cov khoom khov kho (Zoo li cas A) muaj qhov nyuaj qis (HRC≈32), ua rau nws yooj yim rau tshuab, ua kom txias thiab vuam (TIG/MIG).
Los ntawm kev laus yooj yim uas tsis kub heev (510 ℃ -595 ℃), nrog rau kev kho cua sov me me, ua rau nws tsim nyog rau kev tsim cov khoom ua kom raug.
Cov cheeb tsam thov ib txwm muaj
Kev Ua Haujlwm Dav Hlau: Cov hniav compressor ntawm lub cav, cov ncej turbine, cov iav, cov khoom siv txuas thiab cov khoom siv uas ua tau raws li cov lus qhia nruj ntawm FAA, NASA, thiab lwm yam.
Kev Lag Luam Nuclear thiab Zog: Cov khoom siv nuclear reactor, cov hniav turbine steam, cov twj tso kua mis siab, tiv taus hluav taws xob thiab ruaj khov ntawm qhov kub siab.
Cov khoom siv tub rog: cov khoom siv tsim los ntawm foob pob hluav taws, cov khoom siv hauv dej hauv qab dej, thiab cov khoom siv thauj khoom ntawm lub tsheb armored, xav txog ob qho tib si qhov hnyav thiab kev tiv thaiv.
Kev tsim khoom siab heev: cov cuab yeej siv roj av, cov khoom siv kho mob (cov kov riam phais, cov khoom siv cog rau hauv), kev sib raug zoo ntawm lub cev.
Sau luv luv
0Cr13Ni8Mo2Al (13-8Mo), ua tsaug rau nws qhov kev ntshiab siab heev uas tau los ntawm kev sib xyaw ob chav nqus tsev, qhov sib npaug zoo ntawm lub zog, kev tawv, thiab kev tiv thaiv corrosion, thiab kev kho cua sov ruaj khov, tau dhau los ua cov khoom siv tseem ceeb hauv kev lag luam aviation, nuclear, thiab tub rog. Nws txoj kev tsim ua rau pom kev ua tau zoo ntawm cov khoom siv siab heev hauv cov khoom siv siab thiab tseem yog qhov ntsuas kev ua tau zoo ntawm cov hlau tsis xeb uas tau los nag. Kev xaiv 13-8Mo txhais tau tias xaiv qhov sib npaug zoo meej ntawm kev ntseeg tau thiab kev ua tau zoo siab!