公开(公告)号：US11708627B2

公开(公告)日：2023-07-25

申请号：US17440125

申请日：2020-03-24

Applicant: PROTERIAL, LTD.

Inventor： Chuya Aoki ,  Masayoshi Date ,  Toshiki Ishida

IPC: C22C19/05 ,  C22F1/10

CPC classification number: C22C19/055 ,  C22C19/056 ,  C22F1/10

Abstract: Provided are a Ni-based superalloy for stably obtaining high tensile strength and a method for manufacturing the same. Provided are: a Ni-based superalloy having a composition comprising, in mass %, C: up to 0.10%, Si: up to 0.5%, Mn: up to 0.5%, P: up to 0.05%, S: up to 0.050%, Fe: up to 45%, Cr: 14.0 to 22.0%, Co: up to 18.0%, Mo: up to 8.0%, W: up to 5.0%, Al: 0.10 to 2.80%, Ti: 0.50 to 5.50%, Nb: up to 5.8%, Ta: up to 2.0%, V: up to 1.0%, B: up to 0.030%, Zr: up to 0.10%, Mg: up to 0.005%, and the balance of Ni with inevitable impurities, and has a grain orientation spread (GOS) of at least 0.7° as an intragranular misorientation parameter measured by an SEM-EBSD technique; and a method for manufacturing the same.

公开(公告)号：US12290853B2

公开(公告)日：2025-05-06

申请号：US17904697

申请日：2021-03-12

Applicant: PROTERIAL, LTD.

Inventor： Yoji Yamashita ,  Chuya Aoki ,  Shinichi Kobayashi

IPC: B21J3/00 ,  B21J1/02 ,  B21J1/06 ,  B21J5/00

Abstract: A method for manufacturing a hot-forged member includes heating an unheated material for hot forging in a furnace to a hot forging temperature; bonding a heat-resistant insulation material to at least a part of a surface of a material for forging removed from the furnace to obtain a material to be hot forged; and compressing a part or all of the material to be hot forged into a predetermined shape using any of a die, an anvil, and a tool.