Yam dab tsi ntawm cov hlau tsis yog Incoloy 925 yog rau - Kev Paub

1.Dab tsi ntawm cov hlau alloy yog Incoloy 925?

Qeb ntawm Incoloy 925 Alloy

Incoloy 925 yog anag lossis daus-nickel hardening-hlau-chromium superalloy, engineered rau exceptional corrosion kuj, siab tensile zog, thiab zoo toughness nyob rau hauv ib tug ntau yam ntawm kev pab cuam kub. Nws ntog nyob rau hauv lub dav tsev neeg ntawmIncoloy alloys-cov nickel{1}}hlau-chromium alloys tsim rau cov cheeb tsam hnyav uas ob qho tib si corrosion thiab mechanical kev ua tau zoo yog qhov tseem ceeb.

Lub alloy qhov kev ua tau zoo yog muab los ntawm ob qho tseem ceeb ntxiv zog mechanisms:

Khoom- daws teeb meem: Cov ntsiab lus xws li chromium thiab molybdenum dissolve uniformly rau hauv austenitic matrix, txhim khu lub alloy lub zog thiab corrosion kuj ntawm nruab nrab kub.

Cov nag lossis daus hardening: Thaum raug tswj xyuas kev kho cua sov ( txheej txheem kev laus), nplua intermetallic precipitates (feem ntau Ni₃(Al, Ti) gamma- theem pib thiab NbC carbides) tsim nyob rau hauv lub matrix. Cov precipitates impede dislocation txav, ho boosting alloy lub yield zog, tensile zog, thiab creep kuj yam tsis muaj ductility.

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2.Puas yog nickel-raws li, hlau-raws li, lossis chromium-raws li alloy?

Kev faib tawm raws li Nickel-raws li, Hlau-raws li, lossis Chromium-raws li Alloy

Kev faib tawm ntawm cov alloys rau hauv npib tsib xee-raws li, hlau-raws li, lossis chromium-raws li yog txiav txim siab los ntawmqhov feem pua ntawm cov khoom tseem ceebnyob rau hauv lawv cov tshuaj muaj pes tsawg leeg, ua ke nrog lawv cov yam ntxwv microstructural thiab kev taw qhia kev ua haujlwm. Los ntawm tus qauv no, Incoloy 925 txhais tau tias yog anickel-raws li superalloy, thiab cov ntsiab lus ntxaws yog raws li hauv qab no:

Tshuaj muaj pes tsawg leeg dominance: Incoloy 925 feem ntau muaj42% -46% npib tsib xee (Ni)Raws li cov khoom loj tshaj plaws, ua raws li 23% -28% hlau (Fe) thiab 19% -23% chromium (Cr). Txawm hais tias cov ntsiab lus hlau yog qhov siab, npib tsib xee yog lub hauv paus tseem ceeb uas ua kom lub ntsej muag ruaj khov ntawm lub ntsej muag -centered cubic (FCC) austenitic microstructure- lub ntsiab lus ntawm nickel-raws li superalloys.

Kev ua tau zoo- tsav lub luag haujlwm ntawm nickel: Nickel yog lub luag haujlwm tseem ceeb rau Incoloy 925 cov khoom tseem ceeb. Nws ua kom muaj kev ruaj ntseg ntawm austenitic theem thoob plaws ntau qhov kub thiab txias (los ntawm cryogenic mus rau qhov kub siab), tiv thaiv theem kev hloov pauv thiab embrittlement, thiab muab cov matrix rau kev tsim lub zog - txhim kho precipitates. Hauv qhov sib piv, hlau ua haujlwm raws li tus nqi-txo cov hlau alloying, thaum chromium feem ntau ua rau kev tiv thaiv corrosion los ntawm kev tsim cov Cr₂O₃ oxide zaj duab xis.

Industrial Classification Convention: Hauv kev ua lag luam, npib tsib xee- hlau-chromium alloys nrog cov ntsiab lus npib tsib xee tshaj 30% thiab tso siab rau npib tsib xee rau matrix stabilization yog universally faib ua npib tsib xee-raws li superalloys. Qhov no ua raws li cov txheej txheem kev faib tawm ntawm cov koom haum txheej txheem xws li ASTM thiab ASME, uas categorize Incoloy 925 nrog rau cov npib tsib xee ib txwm-raws li alloys nyob rau hauv specifications rau siab -kev ua tau zoo ntawm industrial Cheebtsam.

Hauv cov ntsiab lus, Incoloy 925 yog nag lossis daus-nickel hardening-raws li superalloy, tsis yog hlau-raws li lossis chromium-raws li alloy, nrog rau nws muaj pes tsawg leeg thiab kev ua tau zoo haum rau cov ntawv thov uas yuav tsum tau muaj kev tiv thaiv corrosion thiab siab mechanical zog.

Yam dab tsi ntawm cov hlau ua Incoloy 925 yog rau