Welding high-strength nickel base superalloys
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United States of America Patent
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Dec 20, 1994
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N/A
app pub date -
Nov 4, 1991
filing date -
Sep 28, 1990
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Abstract
A process is provided for welding a gamma-prime precipitation-strengthened nickel base superalloy by heating the weld area and adjacent region to a ductile temperature, welding while maintaining the entire weld area and adjacent region at the ductile temperature and holding the weldment, weld area and adjacent region at the ductile temperature until the entire weld has solidified. The ductile temperature is above the aging temperature but below the incipient melting temperature of the superalloy.
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