Nrhiav kev ntseeg siabInconel 625 thiab Inconel 718 alloymanufacturers thiab lwm tus neeg nyob hauv Suav teb? Koj twb tuaj rau qhov zoo lawm. Raws li tus thawj coj nickel-raws li superalloy chaw tsim tshuaj paus nrog ntau tshaj 18 xyoo ntawm kev paub,GNEEmuab cov ntaub ntawv pov thawj ncaj qha los ntawm lub Hoobkas ntawm cov nqi sib tw heev. Phau ntawv qhia no muab cov ncauj lus kom ntxaws sib piv ntawmInconel 625 thiab Inconel 718, qhia txog lawv cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, kev tiv thaiv corrosion, cov ntawv thov tseem ceeb, thiab tus nqi -kev ua tau zoo los pab koj txiav txim siab xaiv raws li koj qhov kev xav tau tshwj xeeb.
Inconel 625 muaj kev tiv thaiv corrosion zoo tshaj, ductility, thiab yooj yim ntawm kev ua (welding / machining), ua rau nws zoo tagnrho rau tshuaj lom neeg / marine ib puag ncig. Inconel 718, ntawm qhov tod tes, khav theeb lub zog ntau dua (lub zog tensile / tawm lub zog / qaug zog lub zog), nkag siab, thiab tawv, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau huab cua huab cua thiab siab - kev siv kev ntxhov siab, txawm hais tias yuav tsum tau ua haujlwm nyuaj -weld heat treatment. Qhov sib txawv tseem ceeb yog nyob rau hauv lawv txoj kev ntxiv dag zog: 625 siv cov kev daws teeb meem ntxiv dag zog, thaum 718 siv nag lossis daus ntxiv zog ('theem) kom ua tiav nws cov khoom siv zoo tshaj plaws.
Qhov zoo ntawm Inconel 718 yog dab tsi?
Inconel 718 yog lub siab -lub zog, corrosion{2}}resistant nickel-raws li superalloy. Nws muaj cov khoom siv kho tshuab zoo heev, siab - qhov kub thiab txias, thiab tiv thaiv oxidation thiab corrosion. Inconel 718 yog dav siv nyob rau hauv ntau yam lag luam, xws li aerospace, roj thiab roj, tsheb, thiab lub zog tsim.
Tom ntej: Inconel 625 Alloy
Inconel 625 yog npib tsib xee-raws li alloy nrog cov tshuaj muaj pes tsawg leeg uas ua rau muaj kev tiv thaiv corrosion thiab siab - qhov kub thiab txias. Nws cov ntsiab lus tseem ceeb yog npib tsib xee thiab chromium, uas tsim lub hauv paus ntawm nws cov kev ua tau zoo tshaj. Cov ntsiab lus nickel yog tsawg kawg yog 58%, thaum cov ntsiab lus chromium nyob nruab nrab ntawm 20% thiab 23%. Cov ntsiab lus no muab cov alloy muaj zog tiv thaiv oxidation thiab tshuaj corrosion.
alloy 718
Inconel 718 yog lwm cov npib tsib xee-raws li alloy nrog ntau cov tshuaj lom neeg muaj pes tsawg leeg, tsim los rau siab - lub zog thiab siab - kev siv kub. Nws muaj 50% mus rau 55% nickel thiab 17% mus rau 21% chromium. Tsis zoo li Inconel 625, cov hlau no suav nrog cobalt (txog li 1%) thiab hlau ua qhov sib npaug. Cobalt txhim kho cov hlau ruaj khov thiab ua haujlwm rau siab - kub corrosion, thaum hlau txhim kho nws cov tawv thiab lub zog.
Chemical Composition thiab Strengthening Mechanism Comparison: Inconel 625 vs Inconel 718
| Element | Inconel 625 (UNS N06625) Cov ntsiab lus (%) | Inconel 718 (UNS N07718) Cov ntsiab lus (%) | Lub luag haujlwm tseem ceeb & Qhov txawv |
|---|---|---|---|
| Nickel (Ni) | Ntau dua lossis sib npaug li 58 | 50 – 55 | Matrix ntsiab; muab kev tiv thaiv corrosion thiab kub-kub stability. 625 muaj Ni cov ntsiab lus siab dua. |
| Chromium (Cr) | 20 – 23 | 17 – 21 | Muab oxidation thiab corrosion kuj. 625 muaj Cr cov ntsiab lus siab dua me ntsis. |
| Hlau (Fe) | Tsawg dua los yog sib npaug li 5 | Tshuav | Fe yog lub ntsiab alloying tseem ceeb hauv 718, nrog cov ntsiab lus siab dua. |
| Molybdenum (hli) | 8 – 10 | 2.8 – 3.3 | Qhov tseem ceeb sib txawv.Mo zoo heev txhim khu kev tiv thaiv kom txo tau cov xov xwm thiab pitting corrosion, tsim cov ntsiab lus zoo ntawm 625. |
| Niobium + Tantalum (Nb + Ta) | 3.15 – 4.15 | 4.75 – 5.5 | Ob leeg muaj Nb. Hauv 625, Nb thiab Ta pab txhawb kom muaj zog-kev daws teeb meem; hauv 718, Nb feem ntau yog ″ nrog Ni rau nag lossis daus hardening. |
| Aluminium (Al) | Tsawg dua los yog sib npaug li 0.4 | 0.2 – 0.8 | Qhov tseem ceeb sib txawv.Nyob rau hauv 718, Al ua ke nrog Ti tsim cov 'them ntxiv dag zog rau lub hnub nyoog hardening. Hauv 625, Al ntsiab lus tsawg heev. |
| Titanium (Ti) | Tsawg dua los yog sib npaug li 0.4 | 0.65 – 1.15 | Qhov tseem ceeb sib txawv.Ua haujlwm ua ke nrog Al thiab yog lub hauv paus tseem ceeb rau nag lossis daus hardening hauv 718. |
Mechanical Properties: Inconel 718 vs Inconel X-750
| Khoom | ib 718 | Inconel X-750 |
|---|---|---|
| Tensile zog | 1370 MPa rau | 1100 MPa |
| Yield zog | 1030 MPa rau | 780MPa ua |
| Elongation | 12-15% | 15-20% |
| Hardness (Rockwell) | B95-C36 | B88-C32 |
Inconel 718 outperforms X-750 nyob rau hauv tensile zog thiab oxidation kuj, ua rau nws yog ib tug zoo xaiv rau aerospace turbines. Txawm li cas los xij, X-750 muaj kev nkag siab zoo tshaj plaws, uas yog qhov tseem ceeb rau kev siv cov khoom siv hluav taws xob mus sij hawm ntev xws li springs thiab fasteners.
Lub cev muaj zog: Inconel 718 thiab Inconel X-750
| Khoom | ib 718 | Inconel X-750 |
|---|---|---|
| Qhov ceev (g / cm³) | 8.19 | 8.28 |
| Melting Range (zeeg) | 1260 – 1336 | 1390 – 1430 |
| Thermal conductivity (W / m·K, ntawm 20 degree) | ~11.4 | ~11.4 |
| Hluav taws xob tiv thaiv (µΩ·m, ntawm 20 degree) | ~1.29 | ~1.29 |
| Elastic Modulus (GPa) | 200–210 | 207 |
Cov ntsiab lus:
ib 718Nws muaj qhov ntom ntom me ntsis thiab qhov dav ntawm qhov sib txawv ntawm qhov sib txawv, uas ua rau muaj kev sib txuas zoo dua thiab kev ua haujlwm zoo.
Inconel X-750muaj qhov melting point ntau dua, yog li muab cov thermal stability ntau dua nyob rau hauv tej yam kev siv kub siab -.
Corrosion Resistance thiab Oxidation Resistance Comparison
Qhov no yog ib txwm muaj zog ntawm Inconel 625, tab sis ob leeg ua tau zoo heev nyob rau hauv feem ntau ib puag ncig.
Zuag qhia tag nrho Corrosion Resistance:Inconel 625 feem ntau zoo dua. Nws cov ntsiab lus molybdenum siab muab nws zoo heev tiv thaiv chloride pitting, crevice corrosion, thiab txo cov acids xws li sulfuric acid thiab hydrochloric acid.
High -Tub kub oxidation:Ob leeg pom zoo oxidation kuj nyob rau hauv huab cua mus txog 1100 degree. Vim nws cov ntsiab lus chromium siab dua, Inconel 625 yuav muaj qhov zoo me ntsis hauv qhov chaw oxidizing huab cua.
Stress Corrosion Cracking (SCC):Lub siab nickel cov ntsiab lus ntawm ob qho tib si alloys muab lawv zoo heev tiv thaiv chloride ion kev nyuaj siab corrosion cracking.
Marine Environment:625 yog cov khoom xaiv rau kev siv dej hiav txwv (xws li cov kav dej hiav txwv thiab cov khoom hauv nkoj) vim nws muaj zog heev tiv thaiv dej hiav txwv corrosion.
Machining thiab Vuam Properties
Machineability:
Ob leeg nyuaj -rau- cov khoom siv tshuab. 718 muaj zog heev tom qab lub hnub nyoog hardening, ua rau nws nyuaj rau tshuab thiab ua rau cov cuab yeej hnav sai dua.
Ob leeg xav tau cov cuab yeej tshwj xeeb, qis - nrawm txiav hnyav, thiab ua kom txias txaus.
Weldability:
Inconel 625: xyuas.Weldability zoo heev. Yuav tau welded siv txhua txoj kev pa. Qhov chaw welded muaj qhov zoo corrosion kuj thiab feem ntau yuav tsum tsis muaj kev kho cua sov.
Qauv Zauv: Inconel 718Weldability zoo heev ntawm nag lossis daus- hardening alloys. Tsawg susceptibility rau post-weld cracking, tab sis post-weld aging yog pom zoo rau cov txheej txheem nyuaj kom tau txais kev ua tau zoo.
Cov duab tiag tiag ntawm Inconel 718 yeeb nkab vuam hauv GNEE Hoobkas.
Daim ntawv thov tseem ceeb ntawm Inconel 718 thiab Inconel 625
Raws li lawv qhov kev ua tau zoo sib txawv, lawv daim ntawv thov scenarios tau pom meej meej.
** Cov ntawv thov nyiam rau Inconel 625:**
Kev Siv Tshuaj:Acid gas ib puag ncig khoom siv, flue gas desulfurization systems, reactors.
Marine & Offshore:Seawater systems, marine twj tso kua mis shafts, submarine Cheebtsam.
Aerospace:Lub tshuab tso hluav taws xob, hluav taws xob- lub tes tsho retardant (tsis yog-load- cov qauv kabmob).
Nuclear zog:Control pas nrig tsav mechanisms, chav piping.
** Cov ntawv thov nyiam rau Inconel 718:**
Aerospace:Cav turbine disks, hniav, compressor disks, casings (core load- bearing high-temperature Cheebtsam).
Gas Turbines:Turbine disks, fasteners.
Roj & Roj:Siab -lub zog downhole cov cuab yeej, valve Cheebtsam.
High -Kev Sib Tw Ua Haujlwm:Turbocharger Cheebtsam.
Daim Ntawv Thov Cheeb Tsam ntawm Inconel 718 thiab Inconel 625
Xaus:
Inconel 625 thiab Inconel 718sawv cev rau qhov kawg ntawm ob txoj hauv kev ntxiv dag zog rau nickel-raws li superalloys.Ib 625reigns zoo tshaj plaws nyob rau hauv corrosive ib puag ncig, renowned rau nws unparalleled tag nrho corrosion kuj thiab yooj yim ntawm machining thiab vuam; thaumib 718yog tus yeej nyob rau hauv siab - kub, siab - kev siv kev ntxhov siab, dominating core Cheebtsam ntawm aero- cav nrog nws superior siab - kub lub zog thiab tag nrho cov cuab yeej ua los ntawm nag lossis daus hardening.
Qhov kev xaiv nyob ntawm seb puas yog corrosion lossis mechanical load yog qhov kev txhawj xeeb tseem ceeb hauv koj qhov chaw thov. Raws li lub caij nyoog Inconel alloy tsum tau ntawv pov thawj los ntawmAPIthiabISOthiab txhawb nqaSGS/BVthib peb- tog tshuaj ntsuam xyuas,GNEEtsis tsuas yog muab cov ntaub ntawv uas ua tau raws li cov qauv nruj tab sis kuj tseem muaj kev xaiv kev xaiv kev txhawb nqa.
Tiv tauj peb hnub no rau customizedInconel 625 lossis 718cov kev daws teeb meem, cov ntaub ntawv qhia txog cov cuab yeej cuab tam, thiab kev sib tw Hoobkas nqe lus rau koj qhov project.
