Ferro Niobium maualuga mama i totonu o faʻatau
NIOBIUM - O se mea mo faʻafouga ma le tele o le lumanaʻi
O le Niobium o se u'amea lanu efuefu ma se foliga pa'epa'e susulu i luga o luga o luga. O loʻo faʻaalia i le maualuga o le liusua o le 2,477 ° C ma le mamafa o le 8.58g / cm³. E mafai ona faigofie ona fausia le Niobium, tusa lava pe maualalo le vevela. O le Niobium e ductile ma e tupu i le tantalum i totonu o se oa masani. E pei o le tantalum, o le niobium o loʻo faʻaalia ai foi vailaʻau mataʻina ma faʻamaʻi faʻamaʻi.
| vaila'au tu'ufa'atasi
| Fa'ailoga | ||||
| 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 | - |
Fa'amatalaga：
O le vaega autu o le ferroniobium o se uʻamea uʻamea o le niobium ma le uʻamea. O loʻo iai foʻi mea leaga e pei o le alumini, silicon, carbon, sulfur, ma phosphorus. E tusa ai ma le mea o loʻo i totonu o le niobium, ua vaevaeina i FeNb50, FeNb60 ma FeNb70. O le uʻamea uʻamea e gaosia i le niobium-tantalum ore o loʻo i ai le tantalum, e taʻua o le niobium-tantalum iron. Ferro-niobium ma niobium-nickel alloys o loʻo faʻaaogaina e fai ma mea faʻapipiʻi niobium i le faʻafefeteina o le faʻafefe o uʻamea faʻavae uʻamea ma nickel-based alloys. E manaʻomia le maualalo o le kasa ma le maualalo o mea leaga leaga, e pei o Pb, Sb, Bi, Sn, As, ma isi <2 × 10, o lea e taʻua ai o le "VQ" (vacuum quality), e pei o VQFeNb, VQNiNb, ma isi.
Fa'atatauga：
Ferroniobium e masani ona faʻaaogaina mo le faʻafefeteina o le vevela maualuga (vevela vevela) uʻamea, uʻamea uʻamea ma le malosi maualuga le uʻamea maualalo. Niobium fau niobium carbide mautu ma carbon i u'amea u'amea ma le vevela. E mafai ona taofia le tuputupu aʻe o saito i le vevela maualuga, faʻaleleia le fausaga o le sila, ma faʻaleleia le malosi, faigata ma mea fetolofi o le sila.
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