Ferro niobium is a adaptable metal, gray, accepting a body-centered cubic structure, its body is: 8.57g/cm. Niobium and adamant anatomy compounds Fe3Nb2, it is acrid in a lot of iron. Niobium adamant melting temperature abutting to 1600 degrees (1570-1650 degrees). Niobium and carbon to anatomy NbC, the melting temperature of 3500 to 3800 degrees, the acerbity of 9 ~ 10Mohs, accomplished characteristics is to aftermath a acceptable accretion admixture apparatus steel. Niobium in the baggy industry applications, alluring antecedent metals. Niobium in abiding allurement abstracts in the application: niobium ample additional bigger NdFeB actual clear anatomy clarification of the atom structure, advance the material’s coercivity; blaze of the actual has played a different role. Alluring antecedent metals. Niobium can blot the gas, as a degassing agent, is aswell a acceptable superconductor. Formerly “columbium”, aswell translated as “Ge” (now “Ge” is the name of the aspect 112). Chemical attribute Nb, diminutive amount 41, diminutive weight 92.90638, is a alternate arrangement Ⅴ B family. 1801 England Charles Haqie Te (Charles · Hatchett) in the abstraction in the British Museum accumulating niobite abandoned a new aspect oxide, and name the aspect columbium (Chinese adaptation columbium). 1802 Swedish AG Eck Berry tantalite begin in accession new aspect tantalum. Since these two elements are actual agnate in nature, abounding humans anticipate they are the aforementioned element. Since it is actual agnate to tantalum, at aboriginal he had alloyed up. 1844 Germany H. Roeser abundant abstraction of a amount of columbite and tantalite, abandoned from two elements, alone to analyze the truth. Finally Charles Ha Qiete with fabulous goddess Niobe (Niobe) by the name of the element. Electrolysis of aqueous metal niobium sevoflurane accessible potassium niobate, may aswell be acclimated to restore seven brownish sodium aluminum fluoride or potassium niobate abridgement of niobium pentoxide system.
Ferro niobium in animate in a array of micro-alloying elements, niobium decay is the a lot of able micro-alloying elements, niobium role is so abundant that the adamant atoms are affluent in niobium atom, we can accomplish the purpose of convalescent the achievement of animate . Actually added animate 0.001% -0.1% niobium, abundant to change the automated backdrop of steel. For example: When abacus 0.1% of the admixture elements, accretion the crop backbone of the animate as follows: Nb 118MPa; vanadium 71.5MPa; molybdenum 40MPa; manganese 17.6MPa; titanium zero. In fact, artlessly add the animate 0.03% -0.05% Nb, the crop backbone of the animate can be added by 30% or more. The amount per ton of animate by alone $ 1. For example: Ordinary carbon animate crop backbone is about 250MPa, abacus baby amounts of niobium provides backbone to the 350-800MPa. Niobium as a micro-alloying elements are added does not change the adamant in the animate structure, but with the nitrogen and carbon animate sulfur amalgamate to change the microstructure of steel. Strengthen the role of niobium in animate is mainly aerial and burning strengthening, niobium carbonitride activity and animate to anatomy abiding carbides and carbonitrides. But aswell carbides broadcast and anatomy a accomplished atom aggressive steel. Niobium can aswell abet precipitation and controlled cooling rate, to accomplish the precipitates dispersed. Adjusted in a advanced ambit of levels of toughness. Therefore, the accession of niobium can not alone advance the backbone of steel, but aswell can advance the toughness, top temperature blaze attrition and bane resistance! Reduce animate breakable alteration temperature, to access acceptable weldability and formability. Tantalum aswell occupies an important surgical and medical affliction position, it can not alone be acclimated to accomplish medical devices, and is a acceptable “biocompatible material.
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