1. A process for producing composite metal powders with controlled, extremely fine microstructures, involving balanced repetitive welding, fracturing, and rewelding of a mixture of powder particles in a dry, highly energetic ball charge which is a type of grinder used to grind materials into extremely fine powder for use in mineral dressing processes, paints, pyrotechnics, and ceramics.
2. A materials-processing method for assembling metal constituents with a controlled microstructure by repeated welding, fracturing, and rewelding of a mixture of powder particles, generally in a high-energy ball mill (a pulverizer that consists of a horizontal rotating cylinder, up to three diameters in length, containing a charge of tumbling or cascading steel balls, pebbles, or rods).