Stockokary arassalyk Ferro Niobium
NIOBIUM - Geljekde uly potensialy bolan täzelikler üçin material
Niobium, ýalpyldawuk ýüzlerde ýalpyldawuk ak reňkli açyk çal metal. 2477 ° C ýokary ereýän nokady we dykyzlygy 8.58g / sm³ bilen häsiýetlendirilýär. Niobium, hatda pes temperaturada-da aňsatlyk bilen emele gelip biler. Niobium süýümli bolup, tebigy magdanda tantal bilen ýüze çykýar. Tantal ýaly, niobiumda ajaýyp himiki we okislenme garşylygy hem bar.
| himiki düzümi%
| Marka | ||||
| 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 | - |
Düşündiriş：
Ferroniobiumyň esasy düzümi niobiumyň we demiriň demir garyndysydyr. Şeýle hem düzüminde alýumin, kremniý, uglerod, kükürt we fosfor ýaly hapalar bar. Garyndynyň niobium mazmunyna görä, FeNb50, FeNb60 we FeNb70 bölünýär. Niobium-tantal magdany bilen öndürilen demir garyndysynda niobium-tantal demir diýilýän tantal bar. Ferro-niobium we niobium-nikel erginleri demir esasly erginleri we nikel esasly erginleri wakuum eritmekde niobium goşundylary hökmünde ulanylýar. Pb, Sb, Bi, Sn, As we ş.m. ýaly az gazly we pes zyýanly hapalar bolmaly <2 × 10, şonuň üçin oňa VQFeNb, VQNiNb, “VQ” (wakuum hili) diýilýär. we ş.m.
Arza：
Ferroniobium esasan ýokary temperatura (ýylylyga çydamly) ergin, poslamaýan polat we ýokary güýçli pes erginli polat eritmek üçin ulanylýar. Niobium poslamaýan polatdan we ýylylyga çydamly polatdan uglerod bilen durnukly niob karbidini emele getirýär. Highokary temperaturada däne ösmeginiň öňüni alyp biler, poladyň gurluşyny arassalap biler we poladyň berkligini, berkligini we süýşmek häsiýetlerini ýokarlandyryp biler.
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