Nyob rau hauv cov tshuaj muaj pes tsawg leeg ntawm Inconel 718, npib tsib xee, chromium, thiab molybdenum yog lub ntsiab ntxiv dag zog rau cov hlau. Titanium thiab txhuas tuaj yeem tsim cov yeeb yaj kiab oxide muaj zog, uas ua lub luag haujlwm tiv thaiv corrosion thiab oxidation. Tooj liab tuaj yeem txhim kho lub zog thiab corrosion kuj ntawm alloys. Tsis tas li ntawd, cov ntsiab lus cobalt uas tsim nyog tuaj yeem txhim kho qhov kev ua haujlwm siab kub thiab thermal qaug zog lub neej ntawm cov hlau.
ib 718yog ib tug high-temperature alloy, tseem hu uaUNS N07718. Nws yog tsim los ntawm cov khoom xws li npib tsib xee, chromium, hlau, cobalt, txhuas, titanium, niobium, thiab silicon, thiab muaj kev tiv thaiv corrosion zoo heev, kub kub lub zog, thiab toughness. Nws lub ntsiab chemical Cheebtsam yog raws li nram no:
Nickel (Ni): Cov ntsiab lus 50-55 feem pua
Chromium (Cr): Cov ntsiab lus 17-21 feem pua
Hlau (Fe): Cov ntsiab lus 18.5-21.5 feem pua
Cobalt (Co): Cov ntsiab lus qis dua 1 feem pua
Aluminium (Al): Cov ntsiab lus 0.2-0.8 feem pua
Titanium (Ti): Cov ntsiab lus 0.65-1.15 feem pua
Silicon (Si): Cov ntsiab lus hauv qab no 0.3 feem pua
Niobium (Nb): cov ntsiab lus ntawm 5 thiab 5.5 feem pua
Cov pa roj carbon (C): Cov ntsiab lus qis dua 0.08 feem pua
Manganese (Mn): Cov ntsiab lus hauv qab no 0.35 feem pua
Phosphorus (P): cov ntsiab lus hauv qab no 0.015 feem pua
Sulfur (S): cov ntsiab lus hauv qab no 0.015 feem pua
Inconel 718 muaj qhov kub thiab txias tsis kam, oxidation tsis kam, thiab corrosion kuj, thiab tuaj yeem ua haujlwm kub, muaj zog corrosion, thiab muaj kev ntxhov siab ntau. Yog li ntawd, nws yog dav siv nyob rau hauv teb xws li aerospace, nuclear kev lag luam, thiab petrochemical kev lag luam.
