Patent Number: 6,251,159

Title: Dispersion strengthening by nanophase addition

Abstract: A dispersion strengthening method for metallic melts that are used to form large articles. The method comprises adding nanophase particles into a molten metallic melt and dispersing the nanophase particles in the metallic melt. The nanophase particles comprising particles with diameters in the range of about 5 nanometers to about 100 nanometers. The step of dispersing the nanophase particles in the metallic melt spaces the particles from each other with an average interparticle spacing (IPS) in a range from about 10 nanometers to about 500 nanometers.

Inventors: Angeliu; Thomas Martin (Clifton Park, NY), Mukira; Charles Gitahi (Watervliet, NY)

Assignee: General Electric Company

International Classification: C22C 1/10 (20060101); C21D 10/00 (20060101); C21D 010/00 ()

Expiration Date: 06/26/2018