A dual alloy disk made from a rim alloy having high stress rupture and creep resistance as well as good hold time fatigue crack resistance and a hub alloy having high tensile strength and good low cycle fatigue crack resistance is described. The dual alloy disk is designed for use as a disk in gas turbine engines operating as high as 1500 DEG F. The hub and rim are joined together at a substantially defect-free joint to form a turbine disk having improved properties in both the hub and rim regions.
申请公布号
US5161950(A)
申请公布日期
1992.11.10
申请号
US19890417096
申请日期
1989.10.04
申请人
GENERAL ELECTRIC COMPANY
发明人
KRUEGER, DANIEL D.;BARDES, BRUCE P.;MENZIES, RICHARD G.;GANESH, SWAMI;WESSELS, JEFFREY F.;JAIN, SULEKH C.;SAUBY, MICHAEL E.;CHANG, KEH-MINN