Inconel 718 siab kub alloy cov ntaub ntawv muaj pes tsawg leeg (xws li hom Alloy 718)
Inconel 718 / W.Nr.2.4668 / UNS NO7718 / Alloy 718 / GH4169 / GH169 / NC19FeN / NiCr19Fe19Nb5
Txheej txheem cej luam ntawm Inconel 718 yam ntxwv thiab daim ntawv thov thaj chaw:
Inconel 718 alloy muaj cov khoom zoo hauv qhov kub ntawm -253 ~ 700 degree . Lub zog tawm los qis dua 650 degree yog thawj zaug ntawm cov deformed high-temperature alloys. Nws kuj muaj kev qaug zog zoo, hluav taws xob tiv thaiv, oxidation tsis kam, corrosion kuj, thiab kev ua haujlwm zoo thiab kev ua haujlwm vuam zoo. Nws tuaj yeem tsim ntau yam nrog cov duab nyuaj thiab tau siv dav hauv aerospace, nuclear zog, roj av kev lag luam thiab extrusion pwm nyob rau hauv qhov kub thiab txias.
Nws muaj cov yam ntxwv hauv qab no
● Kev ua tau yooj yim ● Lub zog tensile siab, qaug zog lub zog, nkag siab thiab tawg lub zog ntawm 700 degree ●High oxidation tsis kam ntawm 1000 degree ●Stable tshuaj muaj zog ntawm qhov kub thiab txias ● zoo vuam kev ua tau zoo
Daim ntawv thov teb: Vim nws lub zog kub siab, zoo heev corrosion kuj thiab yooj yim processability ntawm 700 degree, nws tuaj yeem siv dav hauv ntau qhov xwm txheej xav tau.
● Chav turbine
● Roj foob pob ua ntxaij kua
●Cryogenic engineering
●Acidic ib puag ncig
● Nuclear engineering
Inconel 718 hom zoo sib xws: GH4169 GH169 (Tuam Tshoj), NC19FeNb (Fabkis), W.Nr.2.4668 NiCr19Fe19Nb5 (Lub Tebchaws Yelemees)
Inconel 718 tshuaj muaj pes tsawg leeg:
Alloy Qib % Nickel Ni Chromium Cr Iron Fe Molybdenum Mo Niobium Nb Cobalt Co Carbon C Manganese Mn Silicon Si Sulfur S Copper Cu Aluminium Al Titanium Ti
Inconel 718 Yam tsawg kawg nkaus 50 17 Margin 2.8 4.75 0.20 0.65
** 55 21 3.3 5.50 1.0 0.08 0.35 0.35 0.015 0.30 0.80 1.15
Inconel718 lub cev muaj zog:
Qhov ntom g / cm3 Melting point degree Thermal conductivity λ / (W / m· degree) Tshwj xeeb kub muaj peev xwm J / kg· degree Elastic modulus GPa Shear modulus GPa Resistivity μΩ·m Poisson tus piv linear expansion coefficient a/10-6 degree { {2}}
8.
Inconel 718 txhua yam khoom: (tsawg kawg txhua yam khoom kuaj pom ntawm 20 degree)
Kev kho cua sov txoj kev Tensile zog σb/MPa Yield zog σp0.2/MPa Elongation σ5 /% Brinell hardness HBS
Solid solution treatment 965 550 30 Ntau dua los yog sib npaug rau 363
Inconel 718 cov qauv kev ua tiav:
Txheem tuav, forgings, daim hlau (strips), xov hlau, kav dej
ASTM B637 ASTM B637 ASTM B670 ASTM B906
US Aerospace Materials Technical Specifications AMS 5662 AMS 5663 AMS 5664 AMS 5662 AMS 5663 AMS 5664 AMS 5596 AMS 5597 AMS 5832 AMS 5589 AMS 5590
American Society of Mechanical Engineers ASME SB637 ASME SB637
Inconel 718 metallographic qauv: Cov qauv ntawm cov hlau no hauv cov qauv kev kho cua sov hauv lub xeev yog tsim los ntawm matrix ', ", δ, thiab NbC theem.
Inconel 718 txheej txheem kev ua tau zoo thiab cov kev xav tau:
1. Vim muaj cov ntsiab lus niobium siab nyob rau hauv Inconel 718 alloy, qhov degree ntawm niobium segregation nyob rau hauv cov hlau yog ncaj qha ntsig txog cov txheej txheem metallurgical.
2. Txhawm rau kom tsis txhob muaj kev sib cais ntau dhau ntawm cov khoom hauv steel ingot, txoj kab uas hla ntawm cov hlau ingot siv yuav tsum tsis txhob loj dua 508mm.
3. Lub homogenized alloy muaj cov thermal ua haujlwm zoo, thiab cov cua kub cua kub ntawm cov hlau ingot yuav tsum tsis pub tshaj 1120 degree.
4. Qhov nruab nrab grain loj ntawm lub alloy yog ze ze rau lub deformation degree thiab zaum kawg forging kub ntawm lub forging.
5. Cov hlau muaj qhov ua tau zoo welding zoo thiab tuaj yeem welded los ntawm argon arc vuam, electron beam vuam, seam vuam, qhov chaw vuam thiab lwm yam.
6. Kev kho cov tshuaj sib txawv thiab cov txheej txheem kev laus ntawm cov hlau yuav tsim cov khoom sib txawv. Vim tias qhov qis qis ntawm "theem, Inconel 718 alloy tuaj yeem tau txais cov khoom siv kho kom zoo los ntawm kev kho mob mus ntev.
