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Tungsten-molybdenum Alloy
Key words:
Tungsten-molybdenum Alloy
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The melting point of tungsten-molybdenum alloy is improved along with the increase of tungsten content. When the tungsten content is increased to 25%, the melting point of the alloy is about 200℃ higher than that of pure molybdenum. Therefore, corresponding alloy components can be selected at the temperature of 2,620~3,410℃ according to the operating temperature and the required alloy melting point. This advantage is also one of advantages that enable molybdenum-tungsten alloy to be used relatively widely. The lattice constant and density of molybdenum-tungsten alloy are improved according to linear functions along with the increase of the tungsten content. The hardness and strength of tungsten-molybdenum alloy are basically improved along with the increase of the tungsten content. The highest hardness value of the alloy at room temperature is 90%~100% of the tungsten content, and its Vickers hardness value is up to 3,530~3,860MPa which is more than one time that of pure molybdenum. The highest hardness value of the alloy at high temperature is 70%~85% of the tungsten content. When the tungsten content is increased from 0 to 40%, the tensile strength of molybdenum-tungsten alloy at room temperature in the processing state is increased from 617MPa to 900MPa. The nominal compositions of frequently used molybdenum-tungsten alloy include Mo-30W, Mo-50W, Mo-85W, etc.
Main Application
▲Molybdenum-tungsten alloy is used as electrodes,head pieces and thimble partsin wave resting furnaces of producing high-melting-point refractory ceramic fibers.
▲Liquid zinc temperature measuring pipes, liquid zinc pump rotors as well as some anti-corrosion parts of zinc smelting furnaces.
▲Gas vanes, protection plates and other parts of solid rocket engines.
Related Products
Specializing in tungsten, molybdenum and its alloy products deep production and processing as well as vacuum furnace and target manufacturing of high-tech enterprises
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