Patent ID: 9677149
Date: 2017-06-13
CPC Classifications: B23K,C21D,C22F,F01D

Claim:
1. A method for post-weld heat treatment of a without a filler material welded high strength component made of a gamma prime (γ′) strengthened superalloy comprised of Ni or Co or Fe or combinations thereof, the method consisting of the following steps: a) providing the welded component, then b) heating the welded component by applying a rapid heating-up rate in the range of about 20° C./m in to 40° C./min during the entire temperature range from room temperature (RT) up to a temperature T c) holding the welded component at T d) holding the welded component at T e) cooling the component with a cooling rate of about 20° C./min, and f) finally optionally applying a precipitation hardening treatment.