公开(公告)号：US09670571B2

公开(公告)日：2017-06-06

申请号：US14493885

申请日：2014-09-23

Applicant: ALSTOM Technology Ltd

Inventor： Thomas Etter ,  Roland Mücke

IPC: C22F1/10 ,  F01D5/14 ,  C30B29/52 ,  C22C19/00

CPC classification number: C22F1/10 ,  C21D2201/04 ,  C21D2261/00 ,  C22C19/00 ,  C30B29/52 ,  F01D5/14 ,  F05D2300/606 ,  F05D2300/607

Abstract: The invention relates to a method for manufacturing a component, especially of a gas turbine, made of a single crystal (SX) or directionally solidified (DS) nickelbase superalloy, including a heat treatment and a machining and/or mechanical treatment step. The ductility of the component is improved by doing the machining and/or mechanical treatment step prior to said heat treatment and a solution heat treatment of the component is done prior to the machining/mechanical treatment step.