Inconel 625 thiab Inconel 718 yog ob lub npe nrov nickel-raws li superalloys dav siv hauv kev lag luam uas xav tau lub zog tshwj xeeb, tiv thaiv corrosion, thiab siab - kub stability. Txawm hais tias lawv txoj kev sib koom ua ke hauv tsev neeg Inconel, lawv nthuav tawm cov khoom sib txawv vim qhov sib txawv ntawm kev sib xyaw, kev kho cua sov, thiab kev siv tau zoo. Hauv qab no yog cov ncauj lus kom ntxaws txog lawv qhov sib txawv tseem ceeb.
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg hauv paus dictates lawv cov yam ntxwv ua haujlwm:
Inconel 625: Feem ntau muaj cov npib tsib xee (Ntau dua lossis sib npaug li 58%), chromium (20–23%), thiab molybdenum (8–10%), nrog ntxiv ntawm niobium (3.15–4.15%). Qhov kev sib xyaw ua ke no txhim kho nws cov kev tiv thaiv corrosion, tshwj xeeb tshaj yog nyob rau hauv chloride- nplua nuj thiab acidic ib puag ncig.
Inconel 718: Muaj npib tsib xee (50–55%), chromium (17–21%), hlau (11–22.5%), thiab niobium (4.75–5.5%), nrog me me ntawm txhuas thiab titanium rau nag lossis daus hardening. Cov ntsiab lus hlau siab dua thiab txo cov qib chromium / molybdenum ua rau nws tsis tshua muaj corrosion{10}}tiv taus dua 625 tab sis zoo dua hauv siab - qhov kub thiab txias.
Mechanical Properties
Lawv tus cwj pwm mechanical sib txawv heev vim yog alloy tsim:
Lub zog: Inconel 718 ua tau zoo hauv lub zog tensile (930–1530 MPa) thiab lub zog tawm los (827–1034 MPa) tom qab kev kho cua sov, ua rau nws zoo tagnrho rau siab - kev siv kev ntxhov siab xws li aerospace xyaw.
Inconel 625 muaj zog tensile qis (690-930 MPa) tab sis superior ductility (elongation mus txog 42.5%), haum rau cov khoom uas yuav tsum tau yooj yim nyob rau hauv corrosive ib puag ncig
Kub Resistance:
Inconel 625 tswj kev ua tau zoo txog li 980℃tab sis tau ua kom zoo rau qis - txog - kub nruab nrab (-45℃txog 345℃).
Inconel 718 tuav lub zog mus txog 700℃thiab yog qhov nyiam rau kev siv cua sov huab cua xws li turbine blades, qhov twg nkag mus yog qhov tseem ceeb.
Kev kho cua sov thiab kev ua kom muaj zog
Inconel 625: Cia siab rau cov khoom- kev daws teeb meem ntawm molybdenum thiab niobium. Nws undergoes tshuaj annealing los optimize corrosion kuj thiab ductility yam tsis muaj nag lossis daus hardening.
Inconel 718: Siv nag lossis daus hardening los ntawm '(Ni3Al/Ti) thiab '(Ni3Nb) theem. Nws yuav tsum tau kho kev laus (piv txwv li, 720℃rau 8 teev) kom ua tiav lub zog siab tshaj plaws, txawm tias qhov no nyuaj rau kev vuam vim yog kev tawg yooj yim.
Corrosion thiab Oxidation Resistance
Inconel 625: Superior nyob rau hauv corrosion kuj vim siab chromium thiab molybdenum cov ntsiab lus. Nws tiv taus ib puag ncig marine, kev ua tshuaj lom neeg, thiab cov kua qaub tshaj tawm, ua rau nws zoo tagnrho rau cov khoom siv hauv qab hiav txwv thiab kev tswj cov pa phem.
Inconel 718: Muaj kev tiv thaiv oxidation zoo tab sis tsis tshua muaj txiaj ntsig hauv chloride - nplua nuj lossis acidic. Nws lub zog ntawm qhov kub thiab txias, ua kom siv tau rau hauv aerospace combustion chambers thiab nuclear reactors.
Daim ntawv thov
Inconel 625: Kev Lag Luam Hauv Tubrog Nkoj: Cov Hniav Hniav, cov kav dej hiav txwv, thiab cov khoom siv sab nrauv.
Chemical processing: Reactors, heat exchangers, and pollution control systems.
Aerospace: Exhaust systems thiab cav thrust reversers
Inconel 718: Aerospace: Jet engine Cheebtsam (piv txwv li, turbine disks, hniav) thiab foob pob hluav taws lub cev muaj zog
Lub Hwj Chim Muaj Peev Xwm: Gas turbines thiab siab -siab qhov cub li qub.
Automotive: Siab -kev ua tau zoo sib tw cav qhov chaw.
Machinability thiab Fabrication
Machining: Ob lub alloys nyuaj rau lub tshuab vim kev ua hauj lwm hardening, tab sis Inconel 625 yog ib qho yooj yim me ntsis vim qhov qis hardness.
Inconel 718 xav tau cov cuab yeej tshwj xeeb (piv txwv li, ceramic inserts) thiab qeeb qeeb los tswj cov cua sov thiab cov cuab yeej hnav.
Vuam:
Inconel 625 nthuav dav weldability zoo heev nrog kev pheej hmoo tawg tsawg
Inconel 718 xav tau ua ntej- thiab tshaj tawm-weld kev kho cua sov kom tiv thaiv kev ntxhov siab- cuam tshuam txog kev tawg.
Additive Manufacturing:
Ob leeg yog siv rau hauv hmoov txaj fusion (PBF) thiab ncaj qha zog tso nyiaj (DED). Inconel 718's nag lossis daus nyuaj nyuaj rau 3D luam ntawv, thaum 625's khoom- cov qauv kev daws teeb meem tso cai rau kev ua haujlwm yooj yim dua.
Kev txiav txim siab nqi
Inconel 718 feem ntau yog 20-30% kim dua 625 vim kev kho cua sov nyuaj thiab cov nqi alloying ntau dua.
Txawm li cas los xij, nws lub neej kev pabcuam txuas ntxiv nyob rau hauv siab - ib puag ncig kev ntxhov siab feem ntau ua rau tus nqi tsim nyog.
Inconel 625 thiab 718 ua raws li kev xav tau ntawm kev lag luam sib txawv. Inconel 625 yog qhov mus-rau alloy rau corrosive thiab cryogenic ib puag ncig, thaum Inconel 718 dominates siab -kev nyuaj siab, siab - kub daim ntawv thov. Cov kws tshaj lij yuav tsum ua qhov tseem ceeb rau kev ua haujlwm ua ntej- corrosion, kub, mechanical load, thiab fabrication complexity{10}}kom xaiv cov khoom zoo. Kev nce qib hauv kev tsim khoom ntxiv ntxiv nthuav dav lawv lub luag haujlwm hauv kev lag luam aerospace thiab lub zog, qhia txog lawv qhov muaj feem cuam tshuam rau qhov chaw huab cua.
Peb lub Hoobkas
Peb cov khoom siv nickel-raws li cov khoom siv hlau yog tsim los ntawm cov khoom siv niaj hnub precision manufacturing puag. Lub Hoobkas tau nruab nrog lub tshuab nqus tsev vacuum induction melting (VIM), electroslag remelting (ESR), thiab multi-directional forging hydraulic units, kom ntseeg tau tias txhua kauj ruam los ntawm melting mus ua tau raws li aerospace- cov qauv qib. Los ntawm kev tswj cov txheej txheem digital, peb ua tiav kev tswj xyuas meej ntawm cov khoom siv purity, grain loj, thiab txhua yam khoom. Txhua batch ntawm cov khoom yog nrog los ntawm traceable melting cov ntaub ntawv thiab thib peb - cov ntaub ntawv pov thawj (xws li DNV-GL, ABS, aerospace qauv, thiab lwm yam), kom ntseeg tau qhov tseeb thiab kev ntseeg siab ntawm cov ntaub ntawv kev ua tau zoo.
Ntim thiab shipping
Peb txais yuav cov qauv kev lag luam siab tshaj plaws rau kev ntim khoom tiv thaiv: tag nrho cov pas nrig / daim hlau raug kho nrog kev tiv thaiv- xeb tiv thaiv thiab ntxiv dag zog rau cov yeeb yaj kiab tsis muaj dej thiab cov khoom ntoo; precision Cheebtsam yog ntim nrog kev cai ua npuas ncauj dividers thiab lub tshuab nqus tsev sealing. Los ntawm peb cov txheej txheem kev sib koom ua ke ntawm kev tsim khoom, peb cog lus tias cov khoom lag luam tshwj xeeb yuav raug npaj thiab xa tuaj tsis pub dhau 7-15 hnub ua haujlwm tom qab kev txiav txim pom zoo thiab cov ntsiab lus kev ua tiav.
