Title:
HIGH-CREEP-RESISTANCE NICKEL-BASED POWDER METALLURGY SUPERALLOY AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/240732
Kind Code:
A1
Abstract:
A high-creep-resistance nickel-based powder metallurgy superalloy and a preparation method therefor, which belong to the technical field of superalloys, and are used for solving the problem of an existing nickel-based powder metallurgy superalloy having relatively low creep resistance at 815ºC. The superalloy comprises the following elements in mass fractions: 0.055-0.065% of C, 14.0-18.0% of Co, 9.0-11.0% of Cr, 2.3-2.7% of Mo, 4.0-6.0% of W, 4.0-6.0% of Ta, 3.0-3.4% of Al, 2.8-3.2% of Ti, 1.8-2.1% of Nb, 0.2-0.4% of Hf, 0.02-0.04% of Zr, 0.02-0.04% of B, 0.002-0.010% of Mg, 0.002-0.012% of La, and 0.002-0.012% of Ce, with the balance being Ni. The high-creep-resistance nickel-based powder metallurgy superalloy has high creep resistance at 815ºC or more.
Inventors:
ZHANG YIWEN (CN)
JIA JIAN (CN)
LIU JIANTAO (CN)
TAO YU (CN)
LIU MINGDONG (CN)
JIA JIAN (CN)
LIU JIANTAO (CN)
TAO YU (CN)
LIU MINGDONG (CN)
Application Number:
PCT/CN2022/105971
Publication Date:
December 21, 2023
Filing Date:
July 15, 2022
Export Citation:
Assignee:
GAONA AERO MAT CO LTD (CN)
CENTRAL IRON & STEEL RES INST (CN)
CENTRAL IRON & STEEL RES INST (CN)
International Classes:
C22C19/05
Foreign References:
| CN110241331A | 2019-09-17 | |||
| CN108330334A | 2018-07-27 | |||
| JP2021172852A | 2021-11-01 | |||
| CN110205523A | 2019-09-06 | |||
| CN110643856A | 2020-01-03 | |||
| CN103898371A | 2014-07-02 | |||
| CN108467972A | 2018-08-31 | |||
| CN111187946A | 2020-05-22 |
Attorney, Agent or Firm:
BEIJING TIANDA INTELLECTUAL PROPERTY OFFICE (CN)
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