Tungsten alloy
Tungsten alloy, also known as tungsten high alloy, is generally a refractory metal with a two-phase composite material composed of W-Ni-Fe or W-Ni-Cu or even W-Ni-Cu-Fe. Some tungsten alloys also add Co, Mo , Cr, etc. They have a very high melting point, are twice as dense as steel, and are over 50% heavier than lead. The tungsten content in traditional heavy alloys ranges from 90% to 97%, which accounts for their high density (between 16.5g/cc and 18.75g/cc). Nickel, iron and copper serve as a binder matrix that holds the brittle tungsten grains together, making the tungsten alloy ductile and easy to work. Nickel-iron is the most commonly used additive in a ratio of 7Ni:3Fe or 8Ni:2Fe by weight.
During liquid phase processing, the matrix alloy melts and brings tungsten into the solution, forming a microstructure of large tungsten grains (20-60 μm) dispersed in the matrix alloy. Sintered materials are often thermo-mechanically processed through swaging and swaging to achieve increased strength and high hardness.
Most current uses of WHA (Tungsten High Alloy) are best served by the W-Ni-Fe system. Due to its high density, it is often used as a tungsten alloy crankshaft for racing cars. Tungsten superalloys such as 93W-4.9Ni-2.1Fe and 95W-4Ni-1Fe are common compositions, and adding cobalt to W-Ni-Fe alloys is a common way to slightly enhance strength and ductility. The presence of cobalt in the alloy provides solid solution strengthening of the binder and slightly enhances the tungsten-based interface strength. Most commonly, cobalt is added at 5% to 15% by weight of the nominal binder.
Main uses of tungsten high alloy
There are many types of tungsten high alloy products, and different manufacturing processes can have various shapes, such as tungsten high alloy rods, cylinders, strips, blocks, bricks, plates, tips, strips, sheets, ultra-thin sheets, spheres, pellets, balls, Disc type, ring type, tube type, etc. According to its special properties, such as small capacity but high density, high yield strength, good hardness, excellent elongation, etc., it can be used in different fields. In terms of different functions, tungsten high alloys can be widely used in various fields in different industries and countries: such as sports, including golf, fishing, darts, yachting, and racing; medical, including radiation shielding, source brackets, collimators, Isotope containers, nuclear injectors; scientific aspects, including tungsten heat sinks, oil drilling, and mining. Due to the increasing demand for depleted uranium, tungsten alloys are now also widely used to replace certain components of military products. Tungsten alloy material is known as a gold plating alternative due to its high density similar to real gold. It can produce gold-plated tungsten bars, gold-plated tungsten bricks, gold-plated tungsten bars, gold-plated tungsten paperweights, and gold-plated tungsten coins. Due to its high melting point, tungsten alloy is commonly used in many high-temperature working environments, such as rocket igniters, turbines, etc. Due to its environmental protection, tungsten alloy materials are widely used to make tungsten heavy alloy fishing sinkers, clamps, and counterweights. Its performance is far better than that of lead, which has small capacity but high density. With special properties, tungsten high alloys are now very popular in our lives.
Tungsten alloy radiation shielding
Because its density is 17.0 g/cm3 to 18.5 g/cm3, which is much higher than ordinary materials, it is widely used as a tungsten alloy radiation shielding sleeve and is used in many fields, such as the pharmaceutical industry, aerospace research and even our daily necessities. Mobile phone radiation protection life. In particular, tungsten protection is used as collimators, syringe shields and other protective shields, such as X-ray protective skirts, which are very important for radiotherapy such as X-rays, gamma rays, and CT examinations. In addition, tungsten heavy alloy materials can be used as an alternative
Materials using depleted uranium for nuclear radiation protection are crucial in the military and aviation fields. If required, engraving or coating technology can also be provided upon request.
Tungsten alloy balls for radioactive waste management
High-density tungsten alloy, with a density of 17.0~18.5g/cm3, can also be made into tungsten alloy balls for radioactive waste management. It can be used in temporary waste storage facilities, such as stainless steel barrels as containers, and tungsten alloy balls are filled into the double-walled sandwich of the stainless steel container as a radiation shield to discharge the radiation source from the container. Radioactive waste will be well shielded within the container. The diameter can be produced according to customer requirements, with the minimum diameter up to 1mm.
Tungsten alloy military industry
Tungsten alloy military rod
Different process methods can provide different properties. If high ultimate tensile strength and high hardness are required, tungsten alloy materials usually need to be forged. They are usually used in the military field, such as tungsten alloy military forging for armor-piercing, bullets and hunting. Rod projectiles, tungsten alloy fragments; if only sintering is required, they can be provided in the form of tungsten alloy cubes, spheres, spheres, etc. for military defense. Sometimes, in order to obtain higher performance, we usually add some other materials to mix the powder, such as Co, Mo, etc. If it involves some parts for use in the Navy, coatings or electrodeposited chromium can be provided depending on the protection requirements. Salinity corrosion.
Why not use tungsten alloy?
Tungsten alloy products are compounds containing carbon and tungsten, similar totitanium.html> titanium carbide. It was originally developed for use as a cutting tool in machine tool applications and is still widely used today. Carbide is neither a metal nor a ceramic. It is prepared by reacting carbon and tungsten at temperatures between 1400-2000°C. Its highest hardness is 86~93 HRA (68~81HRC), but due to its superior wear resistance and high cutting speed, it is not called tungsten alloy, but tungsten carbide. In addition, due to its easy bricking, tungsten carbide is widely used as cutting blades, drill bits, drill bits, nozzles, etc. However, due to crack resistance considerations, tungsten alloy is usually widely used as tungsten alloy medical radiation shielding, crankshafts, counterweights,
