I-FeCrAl AlloyIkhoyili ye-Foil/ Strip 0.05mm Ubugqinsi be-Metallic Honeycomb Substrates

Okuqukethwe kwe-aluminium ephezulu, kuhlanganiswe nokuqukethwe okuphezulu kwe-chromium kubangela izinga lokushisa lokukala likhuphuke lifike ku-1425 C (2600F); Ngaphansi kwesihloko sokumelana nokushisa, leziIngxubevange ye-FeCrAlama-s aqhathaniswa nama-alloys e-Fe ne-Ni base asetshenziswa kakhulu. Njengoba kubonakala kulelo thebula, iIngxubevange ye-FeCrAls anezakhiwo eziphakeme uma kuqhathaniswa namanye ama-alloys ezindaweni eziningi.

Kumele kuqashelwe ukuthi, phakathi nezimo zokushisa ezishintshayo, ukungezwa kwe-yttrium ku-alloy AF eyaziwa nangokuthi ama-Fecralloys alloys, kuthuthukisa ukunamathela kwe-oxide evikelayo, okwenza impilo yesevisi yezingxenye ku-alloy ye-AF ibe yinde kunaleyo ye-alloy. Ibanga le-A-1.

Izintambo ze-Fe-Cr-Al ze-alloy zenziwe nge-iron chromium aluminium base alloys equkethe amanani amancane wezinto ezisebenzayo njenge-yttrium ne-zirconium futhi akhiqizwa ngokuncibilika, ukugoqa insimbi, ukubumba, ukuhlanganisa, ukudweba, ukwelashwa kwendawo, ukuhlolwa kokulawula ukumelana, njll.
Intambo ye-Fe-Cr-Al yakhiwe ngomshini wokupholisa ozenzakalelayo wesivinini esikhulu lapho umthamo wawo wamandla ulawulwa ngekhompuyutha, atholakala njengocingo kanye neribhoni(umcu).

Izici nezinzuzo
1. Izinga lokushisa eliphezulu elisetshenziswayo, izinga lokushisa eliphezulu elisetshenziswayo lingafinyelela ku-1400C (0Cr21A16Nb, 0Cr27A17Mo2, njll.)
2. I-coefficient yokushisa ephansi yokumelana
3. I-coefficient ephansi yokwandisa okushisayo kune-Ni-base super-alloys.
4. High resistivity kagesi
5. Ukumelana nokugqwala okuhle ngaphansi kokushisa okuphezulu, ikakhulukazi ngaphansi komkhathi oqukethe ama-sulfide
6. Umthwalo ongaphezulu wendawo
7. Ingazweli
8. Izindleko eziphansi zezinto ezingavuthiwe, Ukuminyana okuphansi kanye nentengo eshibhile uma kuqhathaniswa nocingo lwe-Nichrome.
9. Ukumelana ne-oxidation ephakeme ku-800-1300ºC
10. Impilo ende yenkonzo

Ukwakhiwa kwezigaba ze-alumina ze-metastable ngenxa ye-oxidation yezohweboIngxubevange ye-FeCrAlizintambo (ubukhulu obungu-0.5 mm) emazingeni okushisa ahlukahlukene kanye nezikhathi zesikhathi zihloliwe. Amasampuli afakwe i-isothermally oxidised emoyeni kusetshenziswa i-thermogravimetric analyzer (TGA). I-morphology yamasampula ane-oxidised yahlaziywa kusetshenziswa i-Electronic Scanning Electron Microscope (ESEM) kanye ne-X-ray phezu kokuhlaziywa kwenziwa kusetshenziswa i-Energy Dispersive X-Ray (EDX) analyzer. Indlela ye-X-Ray Diffraction (XRD) yasetshenziswa ukukhombisa isigaba sokukhula kwe-oxide. Lonke ucwaningo lubonise ukuthi kungenzeka ukukhulisa indawo ephezulu ye-gamma alumina endaweniIngxubevange ye-FeCrAlngocingo lapho i-isothermally oxidised ngaphezu kuka-800°C emahoreni ambalwa.