Kev faib tawm ntawm Nickel Based Alloys

Nickel raws li alloys muaj ntau yam ntsiab lus, ntawm cov chromium feem ntau plays lub luag hauj lwm nyob rau hauv oxidation thiab corrosion kuj, thaum lwm yam ntsiab yog siv los ntxiv dag zog rau alloys. Raws li cov txheej txheem ntxiv dag zog, nws tuaj yeem muab faib ua peb pawg: cov khoom siv ntxiv dag zog, xws li tungsten, molybdenum, cobalt, chromium, vanadium, thiab lwm yam; Cov dej nag ntxiv dag zog xws li txhuas, titanium, niobium, thiab tantalum; Grain ciam teb ntxiv dag zog rau cov ntsiab lus xws li boron, zirconium, magnesium, thiab cov ntsiab lus tsis tshua muaj hauv ntiaj teb.

Kev faib tawm tseem ceeb ntawm nickel raws li alloys
Nickel raws alloy yog cov ntawv luv rau nickel raws li kub-kub alloy, muaj npe tom qab nws qhov tshwj xeeb kub-kub kuj. Nickel raws li alloys tuaj yeem muab faib ua pawg hauv qab no raws li lawv cov khoom:
1. Nickel raws li kub-resistant alloy: Hom alloy no tuaj yeem tiv taus oxidation thiab corrosion ntawm qhov kub ntawm 650 ~ 1000 degree, thiab muaj qee qhov kev muaj zog. Raws li cov hlau nplaum, cov hlau no feem ntau yog siv rau kev tsim cov khoom siv hluav taws xob hauv aviation cav hniav thiab foob pob hluav taws cav, nuclear reactors, thiab cov cuab yeej hloov hluav taws xob.
2. Nickel raws li corrosion-resistant alloy: Nickel ntshiab yog ib tug neeg sawv cev ntawm cov nickel raws li corrosion-resistant alloys. Lub microstructure ntawm hom alloy no yog austenite, nrog rau cov ntsiab alloying tseem ceeb yog tooj liab, chromium, molybdenum, thiab lwm yam. Corrosion resistant alloys muaj cov khoom zoo heev thiab tuaj yeem tiv taus ntau yam acid corrosion thiab kev ntxhov siab corrosion. Nws tuaj yeem siv los tsim cov khoom hauv ntau qhov chaw tiv thaiv corrosion xws li roj av, tshuaj, thiab lub zog.
3. Nickel raws li hnav-resistant alloy: Lub ntsiab alloying ntsiab yog chromium, molybdenum, tungsten, thiab kuj muaj ib tug me me ntawm niobium, tantalum, thiab indium. Nws muaj kev hnav zoo, oxidation tsis kam, corrosion kuj, thiab kev ua haujlwm vuam zoo. Nws tuaj yeem siv rau kev tsim khoom hnav-tiv taus thiab tseem siv rau kev tsim cov ntaub ntawv cladding.
4. Nickel raws precision alloys: nrog rau nickel raws li mos sib nqus alloys, nickel raws precision kuj alloys, thiab nickel raws li hluav taws xob cua sov alloys. Feem ntau yog permalloy, uas muaj cov ntsiab lus npib tsib xee txog li 80%. Nws muaj qhov siab tshaj plaws thiab pib sib nqus permeability nrog rau qis coercivity. Nws yog ib qho tseem ceeb ntawm cov hlau tseem ceeb hauv kev lag luam hluav taws xob. Nickel raws li precision alloys yog cov ntaub ntawv alloy raws li npib tsib xee thiab muaj lwm yam alloying ntsiab xws li chromium, hlau, molybdenum, thiab lwm yam. Cov hlau no muaj lub zog kub kub, tiv thaiv corrosion, thermal qaug zog ua haujlwm, thiab oxidation kuj.
Nickel raws li precision alloys tuaj yeem siv rau lub sijhawm ntev ntawm qhov kub ntawm 1000 txog 1100 degree, thiab tuaj yeem siv rau kev tsim cov cav ntoo cav, cov khoom siv hluav taws xob sib xyaw, roj turbine hniav, aviation cav qhia vanes, thiab ntau yam khoom siv corrosion-resistant. Cov khoom siv ua haujlwm ntawm qhov kub thiab txias.
5. Nickel raws li cov duab nco alloy: Nickel raws li cov duab nco alloy yog nickel alloy uas muaj 50% titanium. Cov hlau no nthuav tawm cov duab zoo nco txog ntawm 70 degree. Los ntawm kev kho qhov sib piv ntawm npib tsib xee rau titanium, qhov kub thiab txias tuaj yeem hloov kho li ntawm 30 degree txog 100 degree. Qhov no alloy yog dav siv nyob rau hauv nws tus kheej expanding structural Cheebtsam ntawm spacecraft, nws tus kheej-excited fasteners nyob rau hauv lub aerospace kev lag luam, thiab dag lub plawv motors nyob rau hauv lub biomedical teb.