Development of a Ni-based superalloy with cellular structure and interconnected microporosity
Keywords:Cellular materials, Porous materials, Superalloys, Heavy metal, Tungsten alloys
A cellular metallic material with interconnected porosity of controlled size of an order of 10 μm has been developed by electrochemical dissolution of tungsten grains in a W-Ni-Fe heavy alloy. The nickel superalloy with sponge structure and high surface/volume ratio can also be processed recycling chips from heavy metal machining (Patent n° P9700191, 1997). Applications for the new material could be found as support for catalysts, high temperature filters for corrosive fluids, burners, etc.
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