Explosive welding is the most common method in steel/niobium welding. Some studies have shown that high strength welded joints can be obtained by explosive welding of steel and niobium, and even achieve equal strength bonding.
Continue Reading →Due to the characteristics of low density and high temperature strength, the application of c-t-i Al alloy in automotive materials has attracted people's attention.
Continue Reading →The main materials of niobium deposit are iron (manganese) niobium, etc. The extraction of niobium mainly includes the process of differentiation concentrate, separation tantalum niobium, preparation of compound and metal, essence and so on.
Continue Reading →The application of titanium alloy in aviation industry is divided into aircraft structure titanium alloy and engine structure titanium alloy. In aerospace, titanium alloy is mainly used as the structure and container material for rockets, missiles and spacecraft.
Continue Reading →Due to its advantages of high melting point, high ductility, high chemical stability, low thermal conductivity and good electrical conductivity, the refractory metal tantalum has become the preferred coating material for high temperature resistance……
Continue Reading →As a material with high biocompatibility and physicochemical properties, niobium has been applied to different subfields of stomatology and plays different roles. Due to its relatively low elastic modulus and strong corrosion resistance, niobium has been applied to implant, repair, orthodontic and maxillofacial surgery. Because of the high transmittance of radiation, it is used in oral medicine and radiology.
Continue Reading →Tantalum is a bluish light gray metal with excellent corrosion resistance in most inorganic acids and has important applications in the chemical industry. Except for hydrofluoric acid, fluorine, fuming sulfuric acid and alkali, tantalum can withstand almost all chemical media (including hydrochloric acid at boiling point, nitric acid and sulfuric acid below 175°C).
Continue Reading →Niobium is mainly used in steel industry to manufacture various alloy steel, heat resistant alloy, niobium base alloy and niobium carbide. Niobium is one of the main alloying elements in steel. In ordinary steel adding 0.02% ~ 0.05% of the trace metal niobium, can make the strength of the steel increased by 20% ~ 25%, and at the same time can improve the mechanical and welding performance of steel, and can improve the heat resistance and corrosion resistance of steel, reduce the brittleness of steel, because of niobium steel with the excellent performance, so, can be used in the rocket, the spacecraft heat shield, electric reactor structural materials and nuclear fuel cladding materials.
Continue Reading →1) the instrument is light and light, which can reduce the damage to blood vessels, muscles and vessels during the operation, and reduce the fatigue of doctors. Titanium instrument is more suitable for fine microsurgery;
Continue Reading →(1) the melting point of niobium is 2479℃, and that of titanium is 1677℃, so high temperature heat source is applied for welding.
Continue Reading →The tensile strength of Nitinol alloys can reach 1000 mpa. That is to say, a section as small as one square millimeter needs more than 100 dry grams of force to pull it off, stronger than the average steel, and with good "memory" and corrosion resistance. Nickel and titanium are mixed in proper proportion to form a Nitinol alloy.
Continue Reading →Titanium is an important structural metal developed in the 1950s. Titanium alloys are widely used in various fields because of their high strength, good corrosion resistance and high heat resistance. Many countries in the world have realized the importance of titanium alloy materials, and have carried on the research and development of it, and got the practical application.
Continue Reading →The use of titanium began in the early 1950s and has lasted for about half a century. The use of titanium began in aviation. High specific strength and good heat resistance make titanium become an important aviation structure material, and titanium was first used in aeroengine. The first titanium alloy used was the ti-6al - 4v(TC4) alloy. This titanium alloy is the most widely used titanium alloy in the world.
Continue Reading →Tantalum-niobium metallurgy industry refers to the industry that manufactures tantalum-niobium metallurgical products from tantalum and niobium mines. Tantalum is a dark and high density stretchable solid at room temperature.
Continue Reading →Tantalum is highly resistant to chemical corrosion and atmospheric corrosion under 150℃. Tantalum is stable to other acids except hydrofluoric acid, fuming sulfur trioxide and concentrated sulfuric acid and phosphoric acid at high temperature. TaW alloys are even more stable than gold and platinum in acidic and neutral media at 200℃.
Continue Reading →Tantalum has strong resistance to chemical decay and atmospheric decay under 150℃. Except for hydrofluoric acid, fuming sulfur trioxide and concentrated sulfuric acid and phosphoric acid at high temperature, the remaining acids are stable. At 200℃, the reliability of ta-w alloy in acidic and neutral medium is even higher than that of gold and foil.
Continue Reading →Titanium alloy is a new kind of structural and functional material with excellent comprehensive properties, low density and high specific strength. Titanium has a density of 4.51g/cm 3, between aluminum (2.7g/cm 3) and iron (7.6g/cm 3). The specific strength of titanium alloy is higher than that of aluminum alloy and steel.
Continue Reading →(1) niobium superconducting material
China has considerable strength in the research and development of NbTi and Nb3Sn superconducting materials, and there is no lack of high-level scientific research achievements, but the production capacity of sufficient scale has not been formed for many years, an important reason is the lack of adequate application market.
Tantalum, niobium metals and alloys in the gas impurities such as oxygen, hydrogen, nitrogen, and carbon and sulfur in the metal due to their behavior and analysis methods and other gases have many similarities, so in analytical chemistry is often included in the "metal gas". The main forms of gas in metal are molecular gas adsorbed on the metal surface, water and solid solution formed by the interaction with metal such as oxide, hydride, nitride and carbide.
Continue Reading →Tantalum sputtering target material is the tantalum sheet material obtained through pressure processing, with high chemical purity, small grain size, recrystallization texture and good consistency in three axes. It is mainly used for sputtering deposition of optical fiber, semiconductor chip and integrated circuit.
Continue Reading →Vanadium is an important strategic resource. In China, vanadium and its compounds have two primary sources, namely vanadium titanium magnetite and stone coal. Although the vanadium-containing disposals in the process of vanadium related industrial production are not dominant in quantity, from the perspective of resource recycling, it is of great significance to study the recovery and reuse of such abandoned vanadium resources.
Continue Reading →Vanadium is an important strategic resource. In China, vanadium and its compounds have two primary sources, namely vanadium titanium magnetite and stone coal. Although the vanadium-containing disposals in the process of vanadium related industrial production are not dominant in quantity, from the perspective of resource recycling, it is of great significance to study the recovery and reuse of such abandoned vanadium resources.
Continue Reading →Titanium alloy is mainly used in the production of aircraft engine compressor components, followed by rockets, missiles and high-speed aircraft components. By the mid-1960s, titanium and its alloys had been used in general industry, making electrodes for electrolysis, condensers for power plants, heaters for oil refining and desalination, and environmental pollution control devices.
Continue Reading →The superconducting niobium cavity has a plurality of openings that require a flange structure for vacuum or connection to other equipment. In order to enable the flange to be welded with the niobium tube of the superconducting niobium cavity, the flange material of the superconducting niobium cavity is titanium niobium material which can be directly welded with electron beam.
Continue Reading →The invention discloses a manufacturing process of ultra-thin wall tantalum capillary, in which the metal material tantalum is selected first, and the key processes include annealing process, drawing process and special drawing equipment. The beneficial effect of the invention is that after the above processing, several key technologies can be broken through to produce ultra-thin wall tantalum capillaries below 0.03mm.
Continue Reading →The superconductivity of titanium niobate superconductor under high pressure is studied systematically. The superconductivity of nb-ti alloy with zero resistance was found at pressures up to 261.7GPa, indicating that nb-ti alloy is the most pressure-resistant superconductor known.
Continue Reading →With the large size and high precision of planar display, the specific impedance of materials is more and more high. More and more display manufacturers choose targets of molybdenum-tantalum alloy with better resistance than * as gate electrode materials, and the demand for targets of molybdenum-tantalum alloy is on the rise sharply.
Continue Reading →Niobium 521 is a new kind of high temperature and high specific strength niobium alloy material, which can meet the technical design requirements of attitude control engine. The material has the following characteristics:
Continue Reading →Titanium was discovered in 1793 and put into industrial production in the early 1950s. At present, it has become the third metal material after iron and aluminum. It is widely used in various fields in industry, and its rapid development is related to the following characteristics.
Continue Reading →Zirconium and zirconium alloy plastic good, can be made into tube, plate, rod and wire, which tube for the main products. The processing of zirconium and zirconium alloys depends on the basic properties of zirconium and the special requirements of zirconium components for nuclear reactors. The basic properties of zirconium are: easy to be polluted by oxygen, nitrogen, hydrogen and so on, easy to stick to the mold, there are homogenous and heterocrystalline transformation.
Continue Reading →With low density, high temperature strength, oxidation resistance and creep resistance, high niobium base alloy is the most promising light and high temperature structural material in aerospace and other fields.
Continue Reading →Rare metal material technology is one of the most important subjects in the field of materials science and engineering in the new century. Modern high-tech such as information technology, new energy technology, space technology, biotechnology, superconductivity technology and other developments are closely related to rare metal materials, especially tantalum niobium new materials.
Continue Reading →Titanium is a rare metal, titanium and its alloy is known as the "metal of the future", because of its light weight, strong strength, strong heat resistance, corrosion resistance and many other excellent characteristics, is considered to have a future of new structural materials. Titanium and its alloys are not only important raw materials in aviation and aerospace industries, but also widely used in many industrial sectors such as chemical industry, petroleum, light industry, metallurgy and power generation.
Continue Reading →Zirconium is a kind of elemental metal, which is used in the atomic energy industry as a corrosion resistant chemical material under high temperature and high pressure. Zirconium surface is easy to form a layer of oxide film, with luster, so the appearance and steel similar.
Continue Reading →Tantalum has a melting point of 2980 ° c, second only to tungsten (3380 ° c) among the commonly used refractory metals, and its density is 16.67g /cm3. When annealed, tantalum has good plasticity and is stable at high temperature. It can absorb and hold gas. Tantalum is acid-resistant and biocompatible. Tantalum is widely used in electronics, chemical, medical and other industries. At the same time, tantalum is also an indispensable material for making hard alloy.
Continue Reading →Because it emits electrons easily, hafnium can be used as the cathode of an X-ray tube. Alloys of hafnium and tungsten or molybdenum are also used as electrodes for high voltage discharge tubes.
Continue Reading →Titanium has good affinity with human body connective tissue and bone epithelial tissue, and its excellent mechanical properties also reflect its advantages in medical alloys. Moreover, titanium is of low density, light weight, good corrosion resistance and comfortable to wear.
Continue Reading →The content of zirconium in the crust is 0.025%, ranking 20th. There are more than a dozen zro2-containing mineral deposits, but only two zircons (ZrSiO4) and zircon (ZrO2) have been selected for industrial use. Zircon is symbiotic with ilmenite, rutile and monazite, and can also be found in beach sand.
Continue Reading →Is the minimum 5*10-2 vacuum required by the Ta heating body vacuum heat treatment furnace at high temperature or must it be achieved before heating? As a result of the specific sample, the binder volatilization, furnace at 500℃ around the vacuum will be greatly reduced, this influence is big?
Continue Reading →Tantalum can be used as solid electrolytic capacitor with large capacity, small size and stable performance. It is used in radar, missile, supersonic aircraft and electronic computer. Tantalum also makes petrochemical heat exchangers, heaters, concentrators and reactor tanks, towers, pipelines and valves. Tantalum is also used as a component material for electron tubes and high-power tubes.
Continue Reading →Mo, Ta, W, Nb and other refractory metals with high melting point have good stability to active metals such as titanium and zirconium, which can be used to make surface layer of mould shell for precision casting. In the process of shell preparation, a layer of tungsten or tungsten oxide surface is……
Continue Reading →The ingots of niobium tungsten alloy are usually prepared by powder metallurgy and smelting. Powder metallurgy is the preparation of ingots by mixing, pressing and sintering niobium, tungsten and other elements powder into pre-alloy strips, and then using more than two times of vacuum electron beam smelting or vacuum arc smelting or the combination of the two smelting methods.
Continue Reading →Titanium alloy can be divided into: heat-resistant alloy, high-strength alloy, corrosion resistant alloy (ti-mo, ti-pd alloy, etc.), low-temperature alloy and special functional alloy (ti-fe hydrogen storage material and ti-ni memory alloy).
Continue Reading →Titanium is very difficult to extract because of its high chemical activity and the fact that it reacts with many elements, including refractories, at melting temperatures. In 1910, American scientists adopted the "sodium method" (sodium reduction TiCl4) to obtain the purity of the metal titanium, but the titanium industry did not immediately develop.
Continue Reading →Tantalum and hafnium belong to strategic metals and are widely used in the field of national defense industry. Tantalum hafnium resource in our country, although have some reserves, limited by factors such as grade, production cost and mining technology, the annual domestic tantalum hafnium far cannot meet the demand of domestic smelting, as a strategic reserve, metal tantalum hafnium imports are vulnerable to the international situation, the high temperature alloy waste contains considerable valuable metallic elements……
Continue Reading →Superalloy is the key material for manufacturing hot end parts of aerospace engine, which is mainly composed of nickel, chromium, cobalt, molybdenum, aluminum, titanium, tantalum, niobium, tungsten, ruthenium, zirconium, hafnium, platinum and iridium. It is also the core material for large power equipment, such as industrial gas turbine and high-temperature gas-cooled nuclear reactor.
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