Incoloy 800 (UNS N08800),Incoloy 800 H(N08810), thiab Incoloy 800HT (UNS N08811) yog peb cov alloys ntawm Incoloy tsev neeg. Peb cov alloys no zoo sib xws, sib txawv me ntsis hauv lawv cov carbon, aluminium, thiab titanium cov ntsiab lus. Kab lus no yuav txheeb xyuas lawv raws li lawv cov khoom, qhov sib txawv ntawm cov txheej txheem kho cua sov, thiab cov xwm txheej siv tau.
Qhov txawv ntawm Incoloy 800, 800H, thiab 800HT yog dab tsi?
I.Cov ntsiab lus chromium hauv Incoloy 800 alloy feem ntau yog li ntawm 15% mus rau 25%, thaum cov ntsiab lus npib tsib xee yog li ntawm 30% mus rau 45%, nrog rau qhov sib ntxiv ntawm me me ntawm txhuas thiab titanium. Thaum txias txias los ntawm qhov kub thiab txias, Alloy 800 tseem nyob hauv ib cheeb tsam -theem austenitic; Yog li ntawd, nws cov microstructure nyob rau hauv lub xeev cov kev pab cuam muaj ib tug austenitic theem. Vim nws cov ntsiab lus chromium siab thiab cov ntsiab lus npib tsib xee txaus, cov hlau alloy muaj kev tiv thaiv zoo rau siab - kub corrosion thiab yog dav siv nyob rau hauv ntau yam kev lag luam.
II.Piv rau Alloy 800, Incoloy 800H muaj kev txhim kho oxidation tsis kam, siab - kub lub zog, thiab creep kuj. Nws yog dav siv nyob rau hauv metallurgical, petrochemical, thiab nuclear industries-tshwj xeeb tshaj yog nyob rau hauv fabrication ntawm chav generators- thiab sawv ua ib qho ntawm cov thawj neeg sib tw cov ntaub ntawv rau tshav kub hloov raj hauv nuclear fais fab nroj tsuag chav generators.
III.Incoloy 800HT sawv cev rau ib qho kev iteration siab heev tsim los ntawm lub hauv paus ntawm Alloys 800 thiab 800H, txawv los ntawm nws superior creep kuj thiab exceptional durability ntawm ultra- kub kub.Incoloy 800HT yog ib tug tag nrho austenitic, uas tsis muaj -carbon npib tsib xee rau cov hlau - series Incoloy 800; tshwj xeeb, cov ntsiab lus cobalt hauv cov hlau no tuaj yeem tswj tau nruj me ntsis kom nyob twj ywm hauv qab 0.01%.
Qhov sib txawv ntawm cov txheej txheem kho cua sov
Incoloy 800, 800H, thiab 800HT txhua tus xav tau kev kho mob kom ntseeg tau qhov ruaj khov ntawm lawv cov austenitic microstructure; Txawm li cas los xij, vim qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg, lawv cov kev kho cua sov tshwj xeeb, cov txheej txheem txias, thiab cov kev xav tau ntxiv sib txawv, raws li cov lus qhia hauv qab no:
I. Incoloy 800: Cov tshuaj annealing kub yog 1150-1180 degree, ua raws li dej quenching tom qab lub sijhawm tuav. Lub hom phiaj yog kom ua tiav cov qauv austenitic tsis sib xws thiab txhim kho ob qho tib si ductility thiab corrosion kuj. Raws li cov kev xav tau tshwj xeeb, kev ntxhov siab- txo kev kho ntawm 850-900℃(tom qab cua txias) tuaj yeem ua tau, ua kom haum rau cov khoom ua haujlwm uas tau ua haujlwm txias lossis vuam.
II. Incoloy 800 H: Cov tshuaj kho kub yog kwv yees li 1150℃(sib npaug rau 2100℃F). Kev ua kom txias yog ua tiav los ntawm dej quenching lossis cua txias sai, tshwj xeeb kom tsis txhob muaj thaj tsam embrittlement nyob ib ncig ntawm 475 degree. Ib qho tseem ceeb yuav tsum tau ua kom tiav qhov nruab nrab ntawm cov nplej loj ntawm ASTM Qib 5 lossis coarser los ntawm kev kho cua sov, yog li ua kom muaj kev kub ntxhov siab heev. Annealing (mus rau qhov hardness tsawg dua los yog sib npaug rau HB 180) yog pom zoo ua ntej sib sib zog nqus- qhov machining qhov.
III. Incoloy 800 HT: Kev kho tshuaj yuav tsum tau tswj qhov kub thiab txias (hauv ± 10 degree). Thaum qhov kub thiab txias zoo ib yam li Incoloy 800H, yuav tsum muaj kev kho kom ruaj khov ntxiv kom ntseeg tau tias cov nag lossis daus ntawm txhuas-titanium carbides. Qib no kuj tseem tswj hwm qhov ntxhib- cov qauv nplej (Ntau dua lossis sib npaug ntawm 90 μm / ASTM Qib 4); los ntawm kev kho cua sov zoo, nws cov creep- tawg lub zog yog qhov zoo ntxiv, ua rau nws qib nrog cov txheej txheem kev kho cua sov tshaj plaws ntawm peb.
Qhov sib txawv ntawm kev ua haujlwm kub
I. Incoloy 800: Muaj kev tiv thaiv corrosion zoo heev thiab kub tsis kam, ua kom pom cov khoom zoo ntawm qhov kub txog li 800 degree; Nws ua kom pom kev ua haujlwm zoo rau oxidation, txo qis, thiab nitridation, nrog rau kev ua haujlwm zoo.
II. Incoloy 800H:Ib qho austenitic, cua sov-resistant hlau-nickel-chromium alloy featuring controlled carbon cov ntsiab lus thiab ib qho ntxiv (Al+Ti) cov ntsiab lus piv rau Incoloy 800. Ib qho tshwj xeeb tov annealing kev kho mob ua rau ib tug nruab nrab grain loj ntawm ntau tshaj los yog sib npaug zos rau 90 µm, ho txhim khu lub zog siab tshaj 60}℃rupture.
Cov khoom pov thawj zoo heev - tawg lub zog ntawm qhov kub siab tshaj 600 degree, nrog rau kev ua haujlwm zoo rau oxidation, nitridation, thiab corrosion nyob rau hauv carburizing tej yam kev mob.
III. Tom ntej: Incoloy 800HTIb qho austenitic nickel-hlau-chromium alloy uas muaj cov ntsiab lus ntxiv (Al+Ti) piv rau Incoloy 800H. Ib qho kev daws teeb meem tshwj xeeb annealing kho tau ua rau qhov nruab nrab ntawm cov nplej loj dua lossis sib npaug li 90 µm thiab kev nkag siab zoo dua - tawg lub zog-tshwj xeeb tshaj 700℃-vim nag lossis daus ntawm titanium{10}} theem nplua nuj. Hauv qab 700 degree, nag lossis daus ntawm 'theem yog nrog los ntawm kev txo qis hauv ductility.
Ua kom pom kev nkag siab zoo heev - tawg lub zog ntawm qhov kub siab tshaj 700℃; Thaum raug alternating txo thiab oxidizing ib puag ncig, nws pom zoo tiv thaiv kom txo tau, oxidation, nitridation, thiab atmospheric corrosion.
Qhov sib txawv ntawm thaj chaw thov
I. Incoloy 800:Lub hauv paus, dav dav - hom phiaj qib haum rau nruab nrab - mus rau - qhov kub thiab txias ib puag ncig ( Tsawg dua lossis sib npaug li 650℃) qhov twg cov kev cai nkag siab tsis nruj. Nws kuj tseem muaj qhov ua tau zoo heev qis - qhov kub thiab txias - khaws cov tawv tawv zoo txawm tias nyob hauv qhov kub thiab txias li qis li -270℃. Nws cov ntawv thov tseem ceeb suav nrog cov cuab yeej ua dej hiav txwv, cov tshuab pickling, cov khoom siv hluav taws xob cryogenic, cov qauv tshuaj reactors, thiab cov kav dej txias hauv cov tshuab hluav taws xob nuclear (tshwj xeeb hauv qhov nruab nrab- mus rau qis qis).
II. Incoloy 800H:Lub siab -kub load- qib bearing tsim rau kev ruaj khov, ntev- kev pab cuam nyob rau hauv qhov kub ntawm 650℃txog 815℃. Nws yog feem ntau siv nyob rau hauv load-cov kabmob cov khoom nyob rau hauv petrochemical sector-xws li ethylene cracking furnace hlab thiab ammonia synthesis converters-raws li nyob rau hauv lub tsim hluav taws xob kev lag luam rau supercritical boiler superheater thiab reheater raj, thiab nyob rau hauv industrial tshav kub{{9}.
III. Tom ntej: Incoloy 800HTIb qho ultra-siab- qib ntsuas kub tau tsim los rau kev ua haujlwm hnyav uas muaj qhov kub thiab txias ntau dua lossis sib npaug li 815℃thiab qib kev ntxhov siab. Nws yog feem ntau ua haujlwm nyob rau hauv cov khoom tseem ceeb xws li lub tshuab hluav taws xob yob hauv siab -kub cua sov rauv, lub tshuab nqus tsev rau cov pa roj carbon monoxide turbines, thiab liners rau loj - qhov cub muaj qhov cub. Cov hlau no muaj peev xwm tswj xyuas qhov ruaj khov ntawm qhov ntev ntawm lub sijhawm ntev hauv qhov kub siab heev - qhov kub thiab txias, yog li tiv thaiv kev nkag siab - vim tsis ua haujlwm.
xaus
Hauv cov ntsiab lus, qhov sib txawv me me ntawm cov pa roj carbon, aluminium, thiab titanium cov ntsiab lus ntawm Incoloy 800, 800H, thiab 800HT ua rau muaj qhov txawv txav ntawm lawv cov kev kho cua sov thiab kev pabcuam kev ua haujlwm, yog li tsim kom muaj kev ua tau zoo gradient uas txawv ntawm qhov dav dav - lub hom phiaj siv hluav taws xob mus rau siab {{4} thiab ultraperature{6} kev siv tau. Hauv kev siv tswv yim, kev xaiv ntawm cov hlau tsim nyog yuav tsum muaj kev sib raug zoo ntawm cov alloy cov yam ntxwv nrog rau cov kev xav tau tshwj xeeb ntawm kev ua haujlwm:
Incoloy 800 yog qhov tsim nyog rau qis- mus rau- qhov nruab nrab kub thiab qis- ib puag ncig kev ntxhov siab, qhov ntau yam thiab tus nqi- kev ua tau zoo yog qhov tseem ceeb xav txog; Incoloy 800H tawm tsam qhov sib npaug ntawm qhov siab - qhov kub thiab txias, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau qhov siab tshaj plaws - kub load- cov ntawv thov bearing; whereas Incoloy 800HT qhia tau tshwj xeeb kev ua tau zoo nyob rau hauv ultra{10}} siab- kub thiab siab - kev ntxhov siab -tshwj xeeb nyob rau hauv kev xav tau ib puag ncig uas tsis muaj kev xav tau rau ntev - lub sij hawm creep resistance thiab dimensional stability yog qhov tseem ceeb.