The 10% tantalum-tungsten alloy Ta-10W retains many excellent properties of pure tantalum while significantly enhancing its strength, rigidity and recrystallization temperature, enabling it to perform more outstandingly in extreme environments. Ta-10W still has good ductility and can be made into wire materials, plates, tubes, etc. through forging, rolling, drawing and other processes. The preparation of wire materials precisely reflects their excellent plastic deformation capacity.
Tantalum-tungsten 10% wire is a high-performance alloy material specially designed to cope with extremely harsh environments. It perfectly combines the corrosion resistance of tantalum and the strengthening effect of tungsten, and is one of the indispensable key materials in aerospace, high-end chemical industry and high-temperature industry. When you need a metal wire that can maintain high strength even in high-temperature and highly corrosive environments, Ta-10W is an ideal choice.
The core function of a tantalum-10% tungsten spring is to store and release energy through its own elastic deformation. Therefore, the materials used to manufacture springs need to have extremely high elastic limits, fatigue strength and good elasticity. The addition of tungsten significantly enhances the material's strength, which means that a tantalum-tungsten 10% spring can withstand a much greater load than ordinary springs (such as steel springs) without permanent deformation. At high temperatures, the strength of most materials will drop sharply (springs will "relax" or "collapse"). The high-temperature strength of Ta-10W is excellent, and it can still maintain its elasticity and load-bearing capacity at temperatures of several hundred degrees or even higher. This is one of its most prominent advantages. It can operate stably in strong acid media such as hydrochloric acid, nitric acid and sulfuric acid, as well as liquid metals, without being corroded like stainless steel. Despite its high strength, it can still be made into helical springs, torsion springs and other shapes through cold rolling process.
Tantalum-tungsten 10% spring wire is applied in high-purity or strongly corrosive fluid transportation pipelines in the chemical, petroleum and pharmaceutical industries. As the core spring element of a control valve or safety valve. For instance, in a system for transporting hot concentrated hydrochloric acid, stainless steel springs will fail rapidly, while tantalum-tungsten 10% springs can work stably for a long time, ensuring precise valve control and safe sealing. Aerospace engines, vacuum heat treatment furnaces, semiconductor manufacturing equipment. It is used as a clamping mechanism for high-temperature fixtures and carriers, or as a reset spring in an actuator. In these environments, springs not only need to withstand high temperatures but also must not release gas to avoid polluting the high-purity environment. Due to its excellent biocompatibility and in vivo corrosion resistance, it can be used in some special implantable devices, such as the driving springs of certain expandable instruments.
Manufacturing a tantalum-tungsten 10% wire spring is no easy task. Eliminating the internal stress generated by winding, shaping the spring and achieving the best elastic performance. Annealing must be carried out under high vacuum or ultra-high purity inert gas protection to prevent the material from oxidation and hydrogen embrittlement at high temperatures. Temperature and time need to be precisely controlled. If the temperature is too low, stress relief will not be thorough; if it is too high, it may lead to coarse grains and reduce fatigue life. Any surface scratches or cracks may become stress concentration points, causing fatigue fracture of the spring under alternating loads. Therefore, extremely high requirements are placed on the surface finish of the wire material and the treatment after spring forming.
