Title:
NICKEL-BASED SUPERALLOY HAVING HIGH-TEMPERATURE CREEP PROPERTY AND OXIDATIVE RESISTANCE, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2019/240460
Kind Code:
A1
Abstract:
The present invention aims to provide a nickel-based superalloy superior to conventional alloys in terms of high-temperature antioxidant resistance and creep properties, and a manufacturing method therefor. Provided according to an aspect of the present invention is nickel-based superalloy casting material superior in high-temperature creep property and oxidative resistance, which comprises, by wt%: 16.6 to 20.0 of cobalt(Co), 15.0 to 17.2 of chrome (Cr), 0 to 2.0 of molybdenum (Mo) (0 exclusive), 7.3 to 10.0 of tungsten (W), 2.2 to 2.7 of aluminum (Al), 2.4 to 3.2 of titanium (Ti), 0.5 to 3.0 of tantalum (Ta), 0.04 to 0.1 of carbon (C), 0 to 0.01 of boron (B) (0 exclusive), and the balance of nickel (Ni) and inevitable impurities.
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Inventors:
YUN DAE WON (KR)
JO CHANG YONG (KR)
JUNG IN YONG (KR)
SEO SEONG MOON (KR)
JO CHANG YONG (KR)
JUNG IN YONG (KR)
SEO SEONG MOON (KR)
Application Number:
PCT/KR2019/006995
Publication Date:
December 19, 2019
Filing Date:
June 11, 2019
Export Citation:
Assignee:
KOREA INST MACH & MATERIALS (KR)
International Classes:
C22C19/05; C22C1/02; C22F1/10
Foreign References:
| US20110194971A1 | 2011-08-11 | |||
| JP2000063969A | 2000-02-29 | |||
| US20020189229A1 | 2002-12-19 | |||
| JPH11246954A | 1999-09-14 | |||
| US20010026769A1 | 2001-10-04 |
Attorney, Agent or Firm:
LEE, In Haeng (KR)
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