Ho Hloeka ho Hoholo Ferro Niobium e fumaneha ka har'a Stock
NIOBIUM – Thepa ea boqapi e nang le bokhoni bo boholo ba bokamoso
Niobium ke tšepe e bohlooho bo bobebe e nang le ponahalo e tšoeu e benyang holim'a libaka tse bentšitsoeng. E khetholloa ka ntlha e phahameng ea ho qhibiliha ea 2,477°C le boima ba 8.58g/cm³. Niobium e ka thehoa habonolo, esita le mochesong o tlase. Niobium e ductile 'me e hlaha le tantalum ka har'a oli ea tlhaho. Joalo ka tantalum, niobium e boetse e na le khanyetso e ikhethang ea lik'hemik'hale le oxidation.
| sebopeho sa lik'hemik'hale%
| Letšoao | ||||
| FeNb70 | FeNb60-A | FeNb60-B | FeNb50-A | FeNb50-B | |
| Nb+Ta | |||||
| 70-80 | 60-70 | 60-70 | 50-60 | 50-60 | |
| Ta | 0.8 | 0.5 | 0.8 | 0.8 | 1.5 |
| Al | 3.8 | 2.0 | 2.0 | 2.0 | 2.0 |
| Si | 1.5 | 0.4 | 1.0 | 1.2 | 4.0 |
| C | 0.04 | 0.04 | 0.05 | 0.05 | 0.05 |
| S | 0.03 | 0.02 | 0.03 | 0.03 | 0.03 |
| P | 0.04 | 0.02 | 0.05 | 0.05 | 0.05 |
| W | 0.3 | 0.2 | 0.3 | 0.3 | - |
| Ti | 0.3 | 0.2 | 0.3 | 0.3 | - |
| Cu | 0.3 | 0.3 | 0.3 | 0.3 | - |
| Mn | 0.3 | 0.3 | 0.3 | 0.3 | - |
| As | 0.005 | 0.005 | 0.005 | 0.005 | - |
| Sn | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Sb | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Pb | 0.002 | 0.002 | 0.002 | 0.002 | - |
| Bi | 0.002 | 0.002 | 0.002 | 0.002 | - |
Tlhaloso：
Karolo e ka sehloohong ea ferroniobium ke motsoako oa tšepe oa niobium le tšepe. E boetse e na le litšila tse kang aluminium, silicon, carbon, sebabole le phosphorus. Ho ea ka litaba tsa niobium tsa motsoako ona, e arotsoe ka FeNb50, FeNb60 le FeNb70. Motsoako oa tšepe o hlahisoang ka niobium-tantalum ore o na le tantalum, e bitsoang niobium-tantalum tšepe. Li-alloy tsa Ferro-niobium le niobium-nickel li sebelisoa e le li-additives tsa niobium ho qhibilihiseng ka vacuum ea li-alloy tse thehiloeng tšepeng le li-alloy tse thehiloeng nickel. Ho hlokahala hore e be le khase e tlase le litšila tse kotsi tse tlase, tse kang Pb, Sb, Bi, Sn, As, jj. <2×10, kahoo e bitsoa "VQ" (boleng ba vacuum), joalo ka VQFeNb, VQNiNb, jj.
Kopo：
Ferroniobium e sebediswa haholoholo bakeng sa ho qhibilihisa motswako wa mocheso o phahameng (o hanelang mocheso), tshepe e sa ruseng le tshepe e nang le motswako o tlase o matla haholo. Niobium e etsa carbide e tsitsitseng ya niobium ka carbon ka hara tshepe e sa ruseng le tshepe e hanelang mocheso. E ka thibela kgolo ya dijo-thollo mochesong o phahameng, ya ntlafatsa sebopeho sa tshepe, mme ya ntlafatsa matla, ho tiya le thepa ya ho thekesela ha tshepe.
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