Inventors:
Russell W. Smashey - Albuquerque NM
Elmer L. Frey - Cincinnati OH
George V. Cash - Melrose MA
George S. Irons - Marblehead MA
Assignee:
General Electric Company - Cincinnati OH
International Classification:
C22C 1907
Abstract:
A commercially available cobalt-base alloy, sometimes called X-40 alloy, and having a relatively high carbon content, is improved to make it useful in the directional solidification casting process through the addition of a particular amount of aluminum sufficient to avoid severe reaction with casting cores and molds which include silica, without detrimental effect on mechanical properties.