METHOD OF PRODUCING MEMBER FOR STEAM TURBINE

摘要

PROBLEM TO BE SOLVED: To provide a method of producing a member for a steam turbine which has good productivity and secures strength of connection parts for connection to other members.SOLUTION: A method of producing a member for steam turbines includes a casting step of casting a cast molding to be used as a member 1 for a steam turbine and made of Ni-based alloy, and an aging treatment step of applying an aging treatment locally to a connection part 12 of the cast molding to be connected to another member as the member for a steam turbine. The aging treatment may be carried out at 725°C-825°C.