Functionalized aspherical powder feedstocks and methods of making the same

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United States of America Patent

PATENT NO 12116653
APP PUB NO 20210146439A1
SERIAL NO

17026218

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Abstract

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This disclosure provides an improvement over the state of the art by teaching a low-cost method to produce feedstock powder, without undergoing a phase change, from industrially relevant wrought alloys that are widely available at low cost. The surfaces of aspherical particles are functionalized with particulates having a different size and composition than the particles, to control the solidification response of the feedstock. Some variations provide a metal-containing functionalized material comprising: a plurality of aspherical particles comprising a metal or a metal alloy; and a plurality of metal-containing or ceramic particulates that are assembled on surfaces of the aspherical particles, wherein the particulates are compositionally different than the aspherical particles. Methods of making and using the metal-containing functionalized materials are described. The invention provides an economic advantage over traditional gas-atomized or water-atomized metal powder feedstocks for powder-based metal additive manufacturing or other powder metallurgy processes.

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Patent Owner(s)

Patent OwnerAddress
HRL LABORATORIES LLC3011 MALIBU CANYON ROAD LEGAL MALIBU CA 90265

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hundley, Jacob M Thousand Oaks, US 63 359
Martin, John H Oxnard, US 113 738
Schaedler, Tobias A Oak Park, US 79 620
Yahata, Brennan D Los Angeles, US 24 37

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