Title:
HIGH-TEMPERATURE ALLOY HAVING LOW STACKING FAULT ENERGY, STRUCTURAL MEMBER AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/222225
Kind Code:
A1
Abstract:
The present application relates to the technical field of high-temperature alloys, and in particular to a high-temperature alloy having low stacking fault energy, a structural member and an application thereof. The high-temperature alloy comprises, by mass fraction: C: 0.01%-0.09%, Co: 23.5%-27.5%, Cr: 11%-15%, W: 0.1%-1.8%, Al: 2.2%-2.6%, Ti: 3.5%-5.5%, Nb: 0%-2%, Ta: 0%-2%, Mo: 2.1%-3.5%, B: 0.0001%-0.05%, Zr: 0.0001%-0.05%, Fe: 0%-2.5%, Mg: 0%-0.04%, Hf: 0%-0.02%, and the remainder being Ni. The sum of the mass fractions of Nb and Ta is greater than or equal to 0.8%. The high-temperature alloy of the present application has service performance of more than 750°C and good hot-working characteristics, and can be used as a structural member such as a turbine disc, a blade, a casing and a combustion chamber for a long time.
Inventors:
BI ZHONGNAN (CN)
YU HONGYAO (CN)
DU JINHUI (CN)
QU JINGLONG (CN)
QIN HAILONG (CN)
GAN BIN (CN)
YU HONGYAO (CN)
DU JINHUI (CN)
QU JINGLONG (CN)
QIN HAILONG (CN)
GAN BIN (CN)
Application Number:
PCT/CN2021/096494
Publication Date:
October 27, 2022
Filing Date:
May 27, 2021
Export Citation:
Assignee:
GAONA AERO MAT CO LTD (CN)
International Classes:
C22C19/05; B33Y70/00; B33Y80/00; C22C30/00; F01D5/02; F01D5/28; F01D25/00; F01D25/24
Foreign References:
| CN101072887A | 2007-11-14 | |||
| EP2778241A1 | 2014-09-17 | |||
| CN111549259A | 2020-08-18 | |||
| EP1201777A1 | 2002-05-02 |
Other References:
See also references of EP 4123044A4
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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