Ntshiab Nickel VS Nickel Alloy

1. Muaj pes tsawg leeg

Ntshiab Nickel:
Muaj cov npe menyuam yaus feem ntau (NI) nrog tsawg kawg nkaus (feem ntau loj dua los yog sib npaug ntawm 99.5% hauv qib siab). Ib txoj kab ntu zoo li hlau (FE), tooj (Cu), carbon (c), thiab leej faj (c) Impurities xws li cov hmoov txhuas (pb), zinc (zinc (zinc (zinc), lossis phosphorus (p) tau khaws cia tsawg (feem ntau<0.01%) to maintain ductility and corrosion resistance.

Nickel alloys:
Are metallic materials where nickel is the primary element (usually >30% los ntawm qhov hnyav) tab sis txhob txwm muaj nrog lwm cov ntsiab los hloov kho cov khoom. Cov khoom siv hluav taws xob ib txwm muaj xws li chromium (CR), hlau (FE), tooj (CU), cobalt (CO), lossis silicon (si). Examples include Inconel® (eg, Inconel 600, 625), Monel® (Ni-Cu alloys), and Hastelloy® (Ni-Mo-Cr alloys).

2. Cov Khoom Siv Neeg Kho Tshuab

Ntshiab Nickel:

Lub zog: Nruab tensile lub zog (feem ntau 300-400 hauv annealed xeev) thiab qis hardness. Nws yog tus ntse thiab du, nrog siab mallabability, ua rau nws yooj yim rau daim ntawv (piv txwv li, dov, forging, lossis kos duab).

Ductility thiab tougness: kev nthuav qhia kev ua haujlwm tau zoo heev, tso cai rau nws tiv thaiv kev tiv thaiv siab yam tsis muaj plittle lov.

Thermal thiab hluav taws xob conductivies: Ntau dua hluav taws xob thiab hluav taws xob piv rau cov nickel ntau, vim nws cov neeg ua yeeb yam ntawm tshav kub thiab hluav taws xob zoo).

Nickel alloys:

Lub zog: alloying cov khoom tau txhim kho lub zog. Piv txwv li:

Tau-tov kev tawm dag zog (piv txwv li, nrog cr lossis mo) nce tensile lub zog (feem ntau 600-1,200 MPa, nyob ntawm lub alloy).

Nag lossis piv txwv ua kom tawv tawv (piv txwv li, nrog Al thiab Ti hauv Alloys zoo li Inconel 718) txuas ntxiv mus rau cov kev kub ntxhov (kev nyab xeeb qeeb (qeeb heev).

Ductility: Feem ntau qis dua ductility dua li nickel ntshiab, raws li ntxiv dag zog mechanisms (piv txwv li precipitates) tuaj yeem txo cov neeg siv tshuaj tiv thaiv tsis tau zoo. Txawm li cas los xij, ntau cov alloy tau khaws cov dovility txaus rau cov fabrication.

Thermal thiab hluav taws xob conductivity: qis dua li cov ntsiab lus tsis meej, raws li cov khoom siv ntshiab cuam tshuam rau cov nyom me me meftic, impeding electron thiab kub txaus.

3. Corrosion Kuj

Ntshiab Nickel:
Muaj zoo corrosion tsis kam nyob rau hauv ib puag ncig tshwj xeeb:

Tsis kam ua alkaline daws (piv txwv li sodium hydroxide) thiab organic acids (piv txwv li acetic acid) vim nws lub peev xwm los tsim oxide txheej.

Ua tau zoo hauv kev txo qhov chaw ib puag ncig (piv txwv li, hydrogen roj) tab sis yog qhov tsis yooj yim rau oxidation thaum muaj zog acids (piv txwv li cov tshuaj muaj zog.

Nickel alloys:
Corrosion tsis kam yog txiav los ntawm kev ua kom haum rau cov chaw hnyav lossis tshwj xeeb:

Chromium (CR) ntxiv (piv txwv li, inconel 600): txhim kho oxidation thiab qhov tseem ceeb rau cua sov lossis cov dav hlau siv.

Molybdenum (mo) thiab tungsten (piv txwv, Hastelloy C276): Kev daws teeb meem, ua kom zoo nkauj, ua rau lawv zoo tshaj rau kev ua yeeb yam.

Tooj (Cu) Ntxiv (CU) ntxiv (piv txwv li, monel 400): sulfuric acid, siv hauv cov khoom siv marine lossis tshuaj lom neeg.

4. Kev ua haujlwm siab-kub

Ntshiab Nickel:
Khaws cia rau ntawm cov chaw kub siab tab sis muaj tsawg zog ntawm kev kub siab (saum toj no) thiab muaj kev nkag mus, txwv nws siv hauv cov ntawv thov kub.

Nickel alloys:
Tsim los rau kev tshwj xeeb high-kub stability:

Alloys zoo li Inconel 718 lossis waspaloy tiv lub zog thiab ua kom muaj zog ntawm 1,000℃(ni₃al) phames) uas tus pines sibcum.

Oxidation tsis kam yog txhim kho los ntawm CR, Al, lossis SI-lossis SI-TE-FREACES, roj turbines, lossis tshuab hluav taws xob.

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5. Kev thov

Ntshiab Nickel:
Siv qhov twg nws cov khoom tshwj xeeb yog qhov tseem ceeb:

Hluav Taws Xob Engineering: Roj teeb khoom, cua sov hais, thiab cov khoom siv hluav taws xob (vim tias muaj kev ua haujlwm zoo).

Tshuaj lom neeg: Cov cuab yeej siv rau kev daws teeb meem alkaline (piv txwv li, caustic dej qab zib khoom siv).

PLATING: Raws li ib txheej puag hauv electroplating (piv txwv li, rau kev tiv thaiv corrosion lossis zoo nkauj tiav).

Nickel alloys:
Tso rau hauv kev xav tau ib puag ncig uas yuav tsum ua rau txiav cov zog lossis corrosion tsis kam:

Aerospace: turnine hniav, combusptate (piv txwv li, inconel 718, tiv taus cov siab kub-nkag).

Roj thiab roj: downhanole cov cuab yeej, pipelines (piv txwv li cov monel 400, tiv taus dej hiav txwv thiab qaub).

Tshuaj lom neeg: Cov tshuaj tiv thaiv, kev sib pauv cua sov (piv txwv li, hastelloy c276, tiv taus kev txhoj puab yog).

Zog: Nuclear Reactor Cheebtsam, Pa Roj Turbine Chaw (piv txwv li, Inconel 600, tiv taus oxidation thiab hluav taws xob).

Ntshiab Nickel yog tus muaj nuj nqis rau nws cov kev coj zoo, kev ua haujlwm zoo, thiab tsis muaj lub zog thiab versatility ntawm alloys. Nickel alloys, los ntawm kev sib piv, yog engineered nrog alloying cov ntsiab lus kom xa cov khoom siv tau zoo, thiab tsom rau kev ua haujlwm corrosion, thiab tsom rau cov chaw muaj mob corrosion.