Cov qauv kev coj ua
ASTM B637: Qhov no yog tus qauv rau cov nickel-based alloys, npog cov tshuaj muaj pes tsawg leeg ntawm cov khoom thiab cov khoom tsim nyog.
Ams 5662: Cov qauv no tsuas yog cov tshuaj ntsuam xyuas thiab kev pom zoo ntawm cov ntaub ntawv aerospace kom ntseeg tau tias cov alloy ua tau raws li cov ntawv thov nruj me ntsis.
ISO 15156: Cov qauv no siv rau cov asloys hauv cov roj thiab roj kev lag luam kom ntseeg tau tias lawv txoj kev ntseeg tau nyob hauv siab.
Nickel alloy ni {-718 muaj qhov zoo siab-kub lub zog thiab corrosion tsis kam.
Nws cov yam ntxwv tseem ceeb muaj xws li:
Kev ua haujlwm siab kub: Ni-718 tseem tuaj yeem tuav cov khoom siv kho kom zoo txog li 1300 degrees Fahrenheit (kwv yees li 700 degrees Celsius).
Weldability: Cov hlau muaj qhov zoo tshaj plaws vuam kev ua tau zoo, uas ua rau nws siv tau zoo hauv cov qauv tsim qauv.
Fatigue resistance: Thaum tshav kub kub kho Ni-718 muaj kev qaug zog zoo heev thiab tsim nyog rau kev ua haujlwm siab.
Corrosion Kuj: nyob rau hauv ntau yam tshuaj lom neeg tshaj tawm, ni -718 Hais muaj zog corrosion tsis kam thiab haum rau kev siv nyob rau hauv ib puag ncig ib puag ncig.
Lub cev thiab tshuab cov khoom siv
Qhov ceev: Qhov ceev ntawm Ni-718 yog li 8.19 g / cm³
Thermal conductivity: Lub thermal conductivity ntawm alloy yog li 9 w / (min k)
Lub zog tensile: tom qab kev kho cua sov, lub tensile lub zog ntawm ni -718 tuaj yeem ncav cuag 1400 MPa
Elongation: Ua ntej tawg, qhov elongation ntawm Ni-718 tuaj yeem ncav cuag ntau dua 20%
Cov txheej txheem thev naus laus zis ntawm nickel alloy Ni-718 kuj yog qhov siab, thiab kev sib xyaw ua ke ntawm forging thiab kev kho cua sov feem ntau yog siv los xyuas kom ruaj khov ntawm nws qhov kev ua tau zoo. Thaum lub sijhawm ua haujlwm, kev saib xyuas yuav tsum tau them rau kev tswj xyuas qhov kub thiab txias kom tsis txhob muaj kev ntxhov siab thiab deformation ntawm cov khoom.
Daim ntawv thov tau txais thiab ua
Kev siv dav ntawm nickel alloy Ni-718 ua rau nws muaj kev sib tw hauv kev ua lag luam. Nws lub ntsiab daim ntawv thov thaj chaw muaj xws li:
Aerospace: siv rau lub dav hlau cav cov qauv qhov chaw, siab-siab turbines thiab roj turbine Cheebtsam.
Kev lag luam roj av: siv rau hauv cov khoom siv roj thiab roj drilling kom tiv taus qhov kub thiab txias ib puag ncig.
Nuclear zog teb: raws li ib co tseem ceeb Cheebtsam nyob rau hauv reactor Cheebtsam thiab nuclear fais fab nroj tsuag.
