Yog lawm, Nickel-based superalloys feem ntau kim, thiab lawv cov nqi stems los ntawm ntau yam:
Cov Khoom Siv Khoom Raw: Npib tsib xee yog tus nqi hlau, thiab superalloys feem ntau muaj lwm cov roj ntsha, colybdenum, tungsten, lossis rhenium-txhua yam uas ntxiv rau lub hauv paus nqi.
Raug kev lag luam: Ua cov alloys no yuav tsum tau ua kom zoo dua qub, ua kom tiav lawv cov kev ntsuas siab) kom ua tiav qhov siab-kub lub zog, corrosion tsis kam, thiab nkag tuaj tiv taus. Cov nqi tsim khoom tshwj xeeb no nce ntau heev nqi ntau lawm.
Kev Ua Haujlwm Zoo: Lawv lub peev xwm tshwj xeeb los tuav cov khoom siv tshuab hluav taws xob hauv kev ntsuas (piv txwv li ntawm cov ntaub ntawv Refines) ua rau lawv muaj cov ntaub ntawv hnyav ntxiv Qhov kev ua tau zoo no kom zoo rau lawv tus nqi siab dua.
Cov nqi tuaj yeem hloov pauv tau ntau raws li Alloy muaj pes tsawg leeg (piv txwv li, rhenium-far້ອງ superalloys yog qhov yooj yim dua ntais
Tsis yog, monel tsis cais raws li superalloy. Monel yog tsev neeg ntawm ob tsev neeg alloys muaj alloys (feem ntau yog li ntawm cov hlau, uas muaj 20 xyoo, ntxiv rau hauv cov chaw ua pa, cov tshuaj acidic, thiab cov tshuab hluav taws xob.
Thaum Monel cov khoom pov thawj zoo ntawm qhov kub thiab txias (li ~ 400 degree), nws tsis muaj kev qaug zog siab tshaj 600-800 degree) uas piav qhia superalalloys. Superalloys tau tshwj xeeb engineered los tuav lub zog thiab ruaj khov ntawm huab huab cua sov, ua rau lawv qhov tseem ceeb rau cov ntawv thov zoo li roj turbine tuaj. Monel, los ntawm kev sib piv, yog feem ntau muaj nuj nqis rau corrosion rau corrosion tsis kam nyob rau hauv qis-kub chaw (piv txwv li cov khoom siv tshuaj lom neeg, lossis roj thiab roj thiab roj (roj (roj thiab roj thiab roj thiab roj (roj thiab roj thiab roj (roj thiab roj (roj thiab roj (roj (roj (roj thiab roj (roj (roj thiab roj (roj (roj thiab roj (roj (roj thiab roj (roj).
Yog lawm, Inconel yog ib tsev neeg paub txog ntawm Nickel-based superalloys. Tsim los ntawm cov hlau tshwj xeeb corcoration, piv txwv li, 718, 625) yog tsim kom muaj lub zog kub (oxidation ua kom muaj zog siab
Cov yam ntxwv tseem ceeb uas qhia txog inconel li superalloy suav nrog:
Cov ntsiab lus npib tsib xee (feem ntau 50-70%), uas muab ib qho kev sib luag rau kev ntxiv dag zog rau cov khoom.
Ntxiv ntawm chromium (rau corrosion / oxidation tsis kam), hlau, molybdenum, niobium, lossis nag xob nag lossis daus).
Tshwj xeeb kev ua tau zoo nyob rau hauv cov chaw hnyav ib puag ncig, xws li roj turbine cav, nuclear reactors, rocket lub zog, thiab cua sov.
Inconel 718, piv txwv li, yog dav siv nyob rau hauv ib lub tshuab luam yeeb tawm ntawm cov kab mob ib qho thiab tawg vim nws lub zog ntawm ob lub zog thiab cryogenic kub.
Saib Monel (ib lub npib tsib xee) xav tau kev kuaj pom kev tshuaj xyuas, kev kuaj tshuaj, thiab qee zaum cov hau kev kuaj tshuaj. Ntawm no yog tswv yim tswv yim:
Pom kev: Monel muaj qhov sib txawv ntawm silvery-grey rau me ntsis daj daj tint, tsaus dua li stainless hlau tab sis sib zog dua li tooj liab. Nws feem ntau txhim kho lub npub, sib txawv patina dhau lub sijhawm (tsis zoo li lub ci ci ntawm Nickel plating lossis lub Greenish Patina ntawm tooj liab).
Hlau Nplej Xeem: Monel yog cov tsis sib nqus (lossis tsis muaj zog sib nqus hauv qee cov variants), uas yog qhov txawv ntawm cov hlau sib nqus zoo li cov hlau lossis cov hlau hlau. Lub zog hlau nplaum yuav tsis lo rau Monel.
Corrosion Kuj Xeem: Monel yog qhov muaj txiaj ntsig zoo rau ntsev dej, sulfuric acid (dilute), thiab alkaline daws teeb meem. Kev ua piv txwv me me rau Saltry lossis dib qaub rau ob peb hnub yuav ua rau muaj xeb lossis tawv nqaij tsis zoo li) lossis tooj liab (uas yuav tsim cov roj ntsuab ntsuab).
Tshuaj Xeem Kev Ntsuam Xyuas:
Ib qho kev daws teeb meem ntawm nitric acid (dilute) yuav ua rau muaj monel los ntawm maj mam daws (vim yog cov ntsiab lus zoo nkauj (tsis zoo li cov hlau loj (vim yog nitric acid).
Dimethylglyoxime (DMG) Kev Kuaj: Siv cov cawv (hauv dej cawv) mus rau ib qho kev poob dej hiav txwv, yuav tsim cov xim liab-liab daus, qhia txog cov menyuam yaus (ib qho tseem ceeb ntawm Monel).
Kev Ntsuas Kev Tshaj: Rau kev txheeb xyuas qhov tseeb, cov tswv yim zoo li x-ray fluorescence (XRF) spectroscopy lossis feem ntau 65 9% tooj liab) kom paub meej tias nws yog Monel.
Cov hau kev no, siv ua ke, ntseeg tau paub qhov txawv monel los ntawm lwm cov hlau lossis alloys.
