An alloy formed by adding a certain amount of tungsten into tantalum.The strength of the alloy increases with the increase of tungsten content in tantalum-tungsten alloy.However, when the tungsten content exceeds 12% to 14%, the plasticity of the recrystallized alloy is remarkably lowered.The main tantalum tungsten alloys are Ta-2.5W,Ta-7.5W, Ta-10W.These tantalum alloys have good low temperature plasticity as pure tantalum and with good high strength and oxidation resistance.
Tantalum-tungsten alloy is mainly used as a high-temperature structural material and corrosion-resistant material in the aerospace industry and chemical industry.
Ta-2.5W: mainly used to make heaters, cooling coils, heat exchangers, reactors, etc.
Ta-7.5W:mainly used as spring material and other corrosion resistant elastic components in chemical corrosion equipment.
Ta-10W:It can be used as a high-temperature component such as a liquid rocket engine thrust combustion chamber with a gas temperature of 3300 ° C or higher and a high-temperature vacuum furnace heating element etc.
