摘要 |
A nickel-based superalloy consisting essentially of, in weight percent, from about 4 to about 5 percent chromium, from about 11 to about 14 percent cobalt, from about 4 to about 8 percent tungsten, from about 6 to about 10 percent tantalum, from about 5 to about 7 percent aluminum, from about 5.5 to about 8 percent rhenium, from about 0 to about 0.50 percent hafnium, from about 0 to about 0.07 percent carbon, from 0 to about 0.01 percent boron, from 0 to about 0.030 percent yttrium, from 0 to about 6 percent ruthenium, from 0 to about 1 percent molybdenum, from 0 to about 1 percent niobium, and the balance essentially nickel. Articles made from the superalloy of the invention are especially useful when cast as single crystal airfoils for use in advanced gas turbine engines. <IMAGE> |
申请人 |
GENERAL ELECTRIC CO., SCHENECTADY, N.Y., US |
发明人 |
AUSTIN, CURTISS MITCHELL, LOVELAND, OHIO 45140, US;O'HARA, KEVIN SWAYNE, BOXFORD, MASSACHUSETTS 01921, US;DAROLIA, RAMGOPAL, WEST CHESTER, OHIO 45069, US;ROSS, EARL WARREN, CINCINNATI, OHIO 45229, US |