C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/113, 75/167,
C22C 19/05 (2006.01) C21D 1/18 (2006.01) C21D 9/00 (2006.01) C22C 1/04 (2006.01) C22F 1/10 (2006.01)
Patent
CA 1334345
An article having improved fatigue crack growth resistance is provided through an improved nickel-base superalloy and an improved method which controls grain size and a strain rate found to be critical in processing. The alloy is selected to have a gamma prime content in the range of about 30-46 volume percent and a resistance to cracking upon rapid quenching from a selected supersolvus solutioning temperature to a selected quenching temperature. The article produced has an improved balance and combination of fatigue crack growth resistance and tensile, creep, and stress rupture properties.
608651
Kissinger Robert Donald
Krueger Daniel Donald
Menzies Richard Gordon
Wukusick Carl Stephen
Company General Electric
Eckersley Raymond A.
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