Title:
HEAT RESISTANT ALLOY MEMBER, MATERIAL USED THEREFOR AND METHOD FOR MANUFACTURING THEM
Document Type and Number:
Japanese Patent JP2022160167
Kind Code:
A
Abstract:
To provide: a heat resistant alloy member consisting of Ni-Cr-Co-Al-W alloy and excellent in high temperature mechanical strength; a material used therefor; and methods for manufacturing them.SOLUTION: A heat resistant alloy material consisting of alloy having a component composition of by mass%, C:0.001-0.050%, Cr:10.0-19.0%, Co:10.0-30.0%, W:13.0-18.0%, Al:1.8-4.5%, B:0.0010-0.0200% and the remainder consisting of Ni and inevitable impurities has a grain size of #6.5 or less in a grain size number and 5×104 mm-2 or less of a deposit number density of carbide particles and μ phase particles. A heat resistant alloy member obtained by subjecting the material to aging heat treatment deposits γ' phase particles having the maximum particle size of 800 nm or less in a crystal grain while depositing deposits having the same grain size along a grain boundary. A method for manufacturing the heat resistant alloy member comprises hot-rolling, cold-rolling, bright annealing heating, predetermined molding and aging heating.SELECTED DRAWING: None
Inventors:
KUMAGAI YOSHIKI
WASHIMI YOSHINORI
KOYANAGI YOSHIHIKO
KAWAMOTO YUSUKE
NISHIMURA YUHEI
WASHIMI YOSHINORI
KOYANAGI YOSHIHIKO
KAWAMOTO YUSUKE
NISHIMURA YUHEI
Application Number:
JP2021064747A
Publication Date:
October 19, 2022
Filing Date:
April 06, 2021
Export Citation:
Assignee:
DAIDO STEEL CO LTD
International Classes:
C22C19/05; C22F1/10
Attorney, Agent or Firm:
Patent business corporation Mutsuki Partners
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