Kuchena Kwakanyanya Ferro Niobium Iri Mudura
NIOBIUM - Chinhu chekugadzira zvinhu zvitsva zvine mukana mukuru weramangwana
Niobium isimbi ine ruvara rwegrey rakareruka ine chitarisiko chechena chinopenya pamusoro penzvimbo dzakaposhwa. Inoratidzwa nekunyunguduka kwakanyanya kwe2,477°C uye density ye8.58g/cm³. Niobium inogona kugadzirwa zviri nyore, kunyangwe patembiricha yakaderera. Niobium haina kusimba uye inoitika netantalum muore yechisikigo. Kufanana netantalum, niobium inewo kudzivirira kwakanyanya kwemakemikari uye oxidation.
| makemikari anoumbwa%
| Rudzi | ||||
| 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 | - |
Tsananguro：
Chinhu chikuru cheferroniobium isimbi ine niobium nesimbi. Inewo tsvina yakaita sealuminium, silicon, kabhoni, sarufa, uye phosphorus. Zvichienderana nehuwandu hwe niobium musimbi, yakakamurwa kuita FeNb50, FeNb60 uye FeNb70. Iron alloy inogadzirwa ne niobium-tantalum ore ine tantalum, inonzi niobium-tantalum iron. Ferro-niobium uye niobium-nickel alloys dzinoshandiswa se niobium additives mukunyungudutsa vacuum yesimbi ine nickel-based alloys. Inodiwa kuti ive negasi shoma uye tsvina ine njodzi shoma, senge Pb, Sb, Bi, Sn, As, nezvimwewo. <2×10, saka inonzi "VQ" (hunhu hwevacuum), senge VQFeNb, VQNiNb, nezvimwewo.
Kushandiswa：
Ferroniobium inonyanya kushandiswa pakunyungudutsa alloy inopisa (inodzivirira kupisa), simbi isingatsvi uye simbi ine simba rakawanda. Niobium inogadzira niobium carbide yakasimba ine kabhoni musimbi isingatsvi uye simbi isingatsvi. Inogona kudzivirira kukura kwezviyo pakupisa kwakanyanya, kunatsa chimiro chesimbi, uye kuvandudza simba, kusimba uye hunhu hwesimbi.
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