FeCrAl hlauNtawv ci / Strip Coil 0.05mm Thickness rau Metallic Honeycomb Substrates

Cov ntsiab lus ntawm txhuas ntau, ua ke nrog cov ntsiab lus ntawm chromium ntau ua rau qhov kub thiab txias nce mus txog 1425 C (2600F); Hauv qab lub ntsiab lus tiv taus cua sov, cov noFeCrAl hlaus raug piv rau cov hlau nplaum Fe thiab Ni uas siv ntau. Raws li pom los ntawm lub rooj ntawd,FeCrAl hlaus muaj cov khoom zoo dua li piv rau lwm cov alloys hauv feem ntau ib puag ncig.

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

Cov xov hlau Fe-Cr-Al yog ua los ntawm cov hlau chromium txhuas puag alloys uas muaj cov khoom me me xws li yttrium thiab zirconium thiab tsim los ntawm kev smelting, steel dov, forging, annealing, kos duab, kev kho qhov chaw, kev tswj kev tiv thaiv, thiab lwm yam.
Cov hlau Fe-Cr-Al tau tsim los ntawm lub tshuab ua kom txias ceev ceev uas lub zog tswj hwm los ntawm lub khoos phis tawj, lawv muaj nyob rau hauv cov hlau thiab cov ribbon (strip).

Cov yam ntxwv thiab qhov zoo
1. Siv qhov kub siab, qhov kub siab tshaj plaws tuaj yeem ncav cuag 1400C (0Cr21A16Nb, 0Cr27A17Mo2, thiab lwm yam)
2. Cov coefficient kub tsawg ntawm kev tiv thaiv
3. Cov coefficient ntawm thermal expansion qis dua li cov Ni-base super-alloys.
4. Kev tiv thaiv hluav taws xob siab
5. Kev tiv thaiv xeb zoo nyob rau hauv qhov kub siab, tshwj xeeb tshaj yog nyob rau hauv huab cua uas muaj sulfides
6. Kev thauj khoom saum npoo siab
7. Tiv taus kev nkag mus
8. Tus nqi raw khoom qis dua, Qhov ceev qis dua thiab tus nqi pheej yig dua piv rau Nichrome hlau.
9. Kev tiv thaiv oxidation zoo tshaj plaws ntawm 800-1300ºC
10. Lub neej ua haujlwm ntev

Kev tsim cov theem metastable alumina vim yog qhov oxidation ntawm kev lag luamFeCrAl hlaucov xov hlau (0.5 hli tuab) ntawm ntau qhov kub thiab lub sijhawm tau raug tshuaj xyuas. Cov qauv tau isothermally oxidized hauv huab cua siv lub tshuab ntsuas thermogravimetric (TGA). Cov qauv ntawm cov qauv oxidized tau raug tshuaj xyuas siv lub tshuab ntsuas hluav taws xob Electronic Scanning Electron Microscope (ESEM) thiab X-ray ntawm qhov kev tshuaj xyuas saum npoo tau ua tiav siv lub tshuab ntsuas hluav taws xob Energy Dispersive X-Ray (EDX). Cov txheej txheem ntawm X-Ray Diffraction (XRD) tau siv los piav qhia txog theem ntawm kev loj hlob ntawm oxide. Tag nrho txoj kev tshawb fawb qhia tau hais tias nws muaj peev xwm loj hlob gamma alumina thaj chaw siab ntawm qhovFeCrAl hlaucov nplaim hlau thaum isothermally oxidized saum 800 ° C dhau ob peb teev.