FeCrAl alloyNtawv Nyiaj / Sawb Chev 0.05mm Thickness rau Hlau Honeycomb Substrates

Cov ntsiab lus aluminium siab, ua ke nrog cov ntsiab lus chromium siab ua rau qhov ntsuas kub nce mus txog 1425 C (2600F); Nyob rau hauv lub headline tshav kub kuj, cov noFeCrAl alloys yog piv nrog feem ntau siv Fe thiab Ni puag alloys. Raws li tau pom los ntawm lub rooj, lubFeCrAl alloys muaj superior zog piv rau lwm yam alloys nyob rau hauv feem ntau ib puag ncig.

Nws yuav tsum raug sau tseg tias, thaum hloov pauv kub, yttrium ntxiv rau AF alloy uas tseem hu ua Fecralloys alloys, txhim kho kev ua raws li kev tiv thaiv oxide, ua rau kev pab cuam lub neej ntawm cov khoom hauv AF alloy ntev dua li ntawm A-1 qib.

Fe-Cr-Al alloy xov hlau yog ua los ntawm cov hlau chromium aluminium puag alloys uas muaj me me ntawm cov ntsiab lus reactive xws li yttrium thiab zirconium thiab tsim los ntawm smelting, steel dov, forging, annealing, kos duab, kho nto, tiv thaiv kev xeem, thiab lwm yam.
Fe-Cr-Al hlau tau zoo li tus los ntawm kev kub ceev tsis siv neeg txias tshuab uas lub hwj chim muaj peev xwm tswj tau los ntawm lub computer, lawv muaj raws li cov hlau thiab ribbon (strip).

Nta thiab qhov zoo
1. Kev siv qhov kub thiab txias, qhov siab tshaj plaws uas siv tau tuaj yeem ncav cuag 1400C (0Cr21A16Nb, 0Cr27A17Mo2, thiab lwm yam)
2. Tsawg kub coefficient ntawm tsis kam
3. Tsawg thermal expansion coefficient tshaj Ni-base super-alloys.
4. Muaj hluav taws xob tiv taus
5. Zoo corrosion kuj nyob rau hauv qhov kub thiab txias, tshwj xeeb tshaj yog nyob rau hauv cov huab cua uas muaj sulfides
6. Siab nto load
7. Creep-resistant
8. Cov khoom siv raw khoom qis dua, qis dua qhov ceev thiab pheej yig dua tus nqi piv nrog Nichrome hlau.
9. Superior oxidation kuj ntawm 800-1300ºC
10. Lub neej ua haujlwm ntev

Qhov tsim ntawm metastable alumina theem vim oxidation ntawm kev lag luamFeCrAl alloyxov hlau (0.5 hli thickness) ntawm ntau yam kub thiab lub sij hawm tau soj ntsuam. Cov qauv raug isothermally oxidised nyob rau hauv huab cua siv lub thermogravimetric analyzer (TGA). Lub morphology ntawm cov qauv oxidised tau soj ntsuam siv lub tshuab hluav taws xob Scanning Electron Microscope (ESEM) thiab X-ray ntawm qhov chaw tsom xam tau ua tiav siv lub zog Dispersive X-Ray (EDX) analyzer. Cov txheej txheem ntawm X-Ray Diffraction (XRD) tau siv los qhia txog theem ntawm kev loj hlob oxide. Tag nrho cov kev tshawb fawb pom tau hais tias nws muaj peev xwm loj hlob thaj chaw siab gamma alumina ntawm lubFeCrAl alloyhlau nto thaum isothermally oxidised saum 800 ° C nyob rau ob peb teev.