Dab tsi yog qhov txawv ntawm Inconel 600 thiab Incoloy 825?
Dab tsi yog qhov txawv ntawm Inconel 600 thiab Incoloy 825?
Inconel 600 yog ib qho siab -nickel alloy (muaj kwv yees li 72% npib tsib xee) uas muaj zog thiab zoo heev - kub oxidation tsis kam, ua rau nws zoo tagnrho rau cov khoom siv hluav taws xob. Incoloy 825, ntawm qhov tod tes, yog npib tsib xee- hlau-chromium alloy nrog qis nickel cov ntsiab lus (kwv yees li 40%), tab sis qhov sib ntxiv ntawm cov ntsiab lus xws li molybdenum, tooj liab, thiab titanium muab nws superior corrosion kuj rau tej corrosive media xws li sulfuric acid. Yog li ntawd, nws yog qhov tsim nyog rau cov ntawv thov uas acid / chloride corrosion yog qhov tseem ceeb, xws li kev ua tshuaj lom neeg, pickling, thiab marine ib puag ncig, yog li tawm tsam qhov sib npaug ntawm kev ua haujlwm thiab tus nqi. Nyob rau hauv luv luv, Inconel 600 ua tau zoo nyob rau hauv siab heev - kub / siab - lub zog ib puag ncig, thaum Incoloy 825 ua tau zoo heev nyob rau hauv hnyav tshuaj lom neeg / acidic corrosive ib puag ncig.
Dab tsi yog kev siv ntawm Inconel 600?
Nws yog siv nyob rau hauv kev tsim cov reactors, muffle furnaces, cov menyuam hearth furnaces thiab lwm yam cub tawg Cheebtsam, raws li zoo raws li kho cua sov pob tawb thiab tais. Hauv kev lag luam aerospace, INCONEL 600 alloy yog siv los tsim ntau lub cav thiab cov khoom siv dav hlau uas yuav tsum tiv taus qhov kub thiab txias. Piv txwv xws li kev kaw cov xov hlau, cov yeeb nkab tso tawm, thiab cov turbine seals.
Inconel 600 (UNS N06600) Lub cev muaj zog
Kev siv tseem ceeb: Kev kub siab heev, oxidizing ib puag ncig, txo cov cua sov, kev lag luam nuclear.
Cov khoom xyaw: Cov npib tsib xee (kwv yees . 72%), chromium (kwv yees . 14-17%), hlau.
Cov txiaj ntsig tseem ceeb: Zoo heev - qhov kub thiab txias, tsim cov txheej txheem oxide ruaj khov, tsim nyog rau kev lag luam nuclear / aerospace applications.
Qhov tsis zoo: Muab piv rau Incoloy 825, nws muaj kev tiv thaiv corrosion tsis zoo rau qee cov kua qaub xws li sulfuric acid.
Lub ntsiab alloying ntsiab ntawm Inconel 600 thiab Incoloy 825 thiab lawv cov dej num
| Element | Inconel 600 | lus 825 | Kev cuam tshuam rau Alloy Performance |
|---|---|---|---|
| Nickel (Ni) | ~72% | 38-46% | Nws muaj corrosion kuj thiab durability |
| Chromium (Cr) | 14-17% | 19.5-23.5% | Txhim kho oxidation tsis kam; siab dua hauv Incoloy 825 muab kev tiv thaiv zoo rau qee cov kua qaub |
| Hlau (Fe) | Qhov nyiaj tshuav (~ 6-10%) | 38-46% | Muab kev txhawb nqa; siab dua hauv Incoloy 825 |
| Molybdenum (hli) | Trace los tsis muaj | 2.5-3.5% | Txhim khu kev tiv thaiv rau pitting, crevice corrosion, thiab txo qhov chaw (sulfuric, phosphoric acids) |
| Copper (Cu) | Trace los tsis muaj | 1.5-3.0% | Txhim khu kev tiv thaiv kom tsis txhob muaj cov kab mob thiab cov kua qaub |
| Titanium (Ti) | Trace los tsis muaj | Txog li 0.4% | Stabilizes tiv thaiv intergranular corrosion |
| Manganese (Mn) | Me me | Me me | Feem ntau tswj kom txwv tsis pub muaj kev puas tsuaj |
| Silicon (Si) | Cov me me (tswj nruj heev) | Me me | Muaj feem xyuam rau oxidation thiab mechanical zog |
Incoloy 825 (UNS N08825) Cov.
Main siv: sulfuric thiab phosphoric acids, chlorides, pickling khoom, tshuaj ua.
Cov khoom xyaw: Nickel (kwv yees . 38-46}%), chromium (kwv yees . 20-23%), hlau (kwv yees . 22-30%), kuj muaj molybdenum thiab tooj liab.
Cov txiaj ntsig tseem ceeb: Kev tiv thaiv corrosion zoo rau cov tshuaj tshwj xeeb (acids / chlorides), zoo tiv thaiv kev ntxhov siab corrosion tawg.
Kev sib piv ntawm cov tshuaj muaj pes tsawg leeg ntawm Inconel 600 thiab Incoloy 825
| Element | Inconel 600 (UNS N06600) Lub cev muaj zog | Incoloy 825 (UNS N08825) Cov. |
|---|---|---|
| Nickel (Ni) | ≥ 72.0% | 38.0 - 46.0% |
| Chromium (Cr) | 14.0 - 17.0% | 19.5 - 23.5% |
| Hlau (Fe) | 6.0 - 10.0% | ≥ 22.0% |
| Molybdenum (hli) | - | 2.5-3.5% yog ' |
| Copper (Cu) | ≤ 0.5% | 1.5-3.0% yog ' |
| Titanium (Ti) | - | 0.6-1.2% yog ' |
| Aluminium (Al) | - | ≤ 0.2% |
| Manganese (Mn) | ≤ 1.0% | ≤ 1.0% |
| Cov pa roj carbon (C) | ≤ 0.15% | ≤ 0.05% |
| Silicon (Si) | ≤ 0.5% | ≤ 0.5% |
| Sulfur (S) | ≤ 0.015% | ≤ 0.03% |
| Phosphorus (P) | - | ≤ 0.03% |
Kev sib piv ntawm cov khoom siv kho tshuab ntawm Inconel 600 thiab Incoloy 825
| Khoom | Inconel 600 (Annealed) | Incoloy 825 (Annealed) |
|---|---|---|
| Tensile zog (MPa, min) | 550-690 : kuv | 586-724 : kuv |
| Yield zog (0.2% Offset, MPa, min) | 240 | 241-345 : kuv |
| Elongation (% hauv 50 mm, min) | 30 | 30 |
| Hardness (Rockwell B, max) | 90 PAB | 88 PAB |
| Qhov ceev (g / cm³) | 8.47 | 8.14 |
| Melting Range (°C) | 1370-1425: ib | 1370-1400 Nws |
| Primary Corrosion Resistance | Oxidation, chlorides, alkalis | Acids, chlorides, dej hiav txwv |
| Hom Kev Pabcuam Nruam Kub (max) | ~ 700 ° C | ~ 540 ° C |
Muaj kev siv thiab tsim nyog
Inconel 600 Daim Ntawv Thov
Kev ua tshuaj lom neeg
Inconel 600 yog siv dav hauv kev lag luam tshuaj lom neeg vim nws cov oxidation zoo heev thiab siab -kub corrosion kuj. Nws yog qhov tsim nyog rau cov ntawv thov raug corrosive chemicals thiab huab cua kub, xws li reactors, evaporators, thiab tshav kub exchangers. Lub alloy qhov ruaj khov thiab kav ntev nyob rau hauv thermal kev nyuab siab ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau kev tswj xyuas kev ncaj ncees nyob rau hauv corrosive chemical ib puag ncig.
Kev kho cua sov
Lub siab - kub lub zog thiab oxidation tsis kam ntawm Inconel 600 ua rau nws zoo tagnrho rau kev kho cua sov daim ntaub ntawv, xws li lub cub tawg Cheebtsam, kho cua sov pob tawb, thiab fixtures. Lub alloy tuaj yeem tiv taus ntev ntev rau qhov kub thiab txias yam tsis muaj kev puas tsuaj loj, ua kom lub neej ntev thiab kev ntseeg siab thaum lub sijhawm kho cua sov.
Marine Environments
Inconel 600 kuj tseem siv nyob rau hauv marine ib puag ncig vim nws zoo heev corrosion kuj rau seawater thiab saline atmospheres. Nws tiv thaiv kev ntxhov siab corrosion cracking thiab pitting ua rau nws haum rau marine engineering daim ntaub ntawv, nrog rau offshore platforms thiab naval khoom.
Rauv Cheebtsam
Inconel 600 yog dav siv nyob rau hauv lub cub tawg Cheebtsam vim nws muaj peev xwm tswj tau txhua yam khoom ntawm qhov kub thiab txias. Nws yog cov khoom siv zoo tshaj plaws rau kev tsim cov khoom siv hluav taws xob xws li muffles, retorts, thiab radiant tubes. Cov hlau tsis kam mus rau carburization thiab oxidation txhim kho nws cov kev ua tau zoo thiab kev ua neej nyob rau hauv siab - qhov kub thiab txias qhov chaw.
Incoloy 825 Daim ntawv thov
Kev ua tshuaj lom neeg
Incoloy 825 ua tau zoo tshwj xeeb hauv kev siv tshuaj lom neeg, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj sulfuric thiab phosphoric acids. Nws txhim khu kev tiv thaiv rau pitting, crevice corrosion, thiab kev nyuaj siab corrosion cracking ua rau nws haum rau reactors, tshav kub exchangers, thiab piping systems. Cov alloy muaj peev xwm tiv taus corrosive chemical ib puag ncig kom ntseeg tau kev ua tau zoo thiab txo cov nqi tu.
Kev kho cua sov
Incoloy 825 kuj tseem siv rau hauv daim ntawv thov kev kho cua sov, tab sis nws zoo dua rau cov cheeb tsam uas muaj kev tiv thaiv corrosion yog qhov tseem ceeb tshaj li qhov kub siab heev. Cov hlau tsis kam mus rau ntau hom kev xeb, nrog rau kev cuam tshuam ntawm intergranular, ua rau nws cov khoom siv txhim khu kev qha rau cov khoom siv hluav taws xob thiab lwm yam khoom hauv cov nroj tsuag tshuaj.
Marine Environments
Incoloy 825 nthuav tawm cov tshuaj tiv thaiv zoo heev rau cov tshuaj chloride-induced stress corrosion cracking, ua rau nws zoo heev rau marine ib puag ncig. Nws yog feem ntau siv rau hauv kev tsim kho cov dej hiav txwv txias, nkoj tso pa, thiab lwm yam khoom raug dej ntsev. Cov alloy no nthuav tawm cov kav ntev zoo hauv chloride- thaj chaw nplua nuj, ua kom nws lub sijhawm ntev - kev ua tau zoo thiab tiv thaiv kev puas tsuaj.
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