Title:
HIGH-STRENGTH NICKEL-BASED POWDER SUPER HEAT-RESISTANT ALLOY HAVING EXCELLENT WORK-HARDENING CAPACITY
Document Type and Number:
WIPO Patent Application WO/2019/245077
Kind Code:
A1
Abstract:
The present invention relates to a high-strength super heat-resistant alloy used in a high-performance gas-turbine engine. To achieve the above-described purpose, the present invention provides a nickel-based super heat-resistant alloy comprising 13-15 wt.% of Co, 12-16 wt.% of Cr, 2.5-4.0 wt.% of Mo, 2.5-3.5 wt.% of W, 2.5-3.0 wt.% of Al, 2.5-4.0 wt.% of Ti, 1.0-2.0 wt.% of Ta, 0.01-0.03 wt.% of C, and 53-63.5 wt.% of Ni. According to an embodiment of the present invention, a nickel-based super heat-resistant alloy having a yield strength of 1000 MPa or more at a high temperature (620-680°C) and ensuring high work-hardening capacity can be manufactured.
Inventors:
KIM HONGKYU (KR)
KIM DONGHOON (KR)
HONG SUNGSUK (KR)
LEE BYEONGJOO (KR)
KIM YOUNGKWANG (KR)
KIM DONGHOON (KR)
HONG SUNGSUK (KR)
LEE BYEONGJOO (KR)
KIM YOUNGKWANG (KR)
Application Number:
PCT/KR2018/006960
Publication Date:
December 26, 2019
Filing Date:
June 20, 2018
Export Citation:
Assignee:
AGENCY DEFENSE DEV (KR)
International Classes:
C22C19/05; C22F1/10
Domestic Patent References:
| WO2016053489A2 | 2016-04-07 |
Foreign References:
| US20110203707A1 | 2011-08-25 | |||
| JP2014005528A | 2014-01-16 | |||
| KR20180005247A | 2018-01-15 | |||
| JP2012255196A | 2012-12-27 | |||
| KR20180074338A | 2018-07-03 |
Attorney, Agent or Firm:
PARK, Jang-Won (KR)
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