Title:
HIGH-TOUGHNESS AND HIGH-HARDNESS STEEL ALLOY, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/261693
Kind Code:
A1
Abstract:
The present invention relates to a high-toughness and high-hardness steel alloy, and a manufacturing method therefor, and one aspect of the present invention provides a high-toughness and high-hardness steel alloy comprising 0.4-0.6 wt% of carbon (C), 1.0-2.0 wt% of silicon (Si), 0.4-1 wt% of manganese (Mn), 0.3-0.9 wt% of chromium (Cr), 0.1-0.4 wt% of molybdenum (Mo) and 0.1-0.4 wt% of vanadium (V), and comprising a martensite-bainite complex phase structure.
Inventors:
KIM HONG KYU (KR)
SONG YOUNG BEUM (KR)
HAM JIN HEE (KR)
PARK TAE WON (KR)
KIM DONG HOON (KR)
KIM YONG JIN (KR)
SONG YOUNG BEUM (KR)
HAM JIN HEE (KR)
PARK TAE WON (KR)
KIM DONG HOON (KR)
KIM YONG JIN (KR)
Application Number:
PCT/KR2021/000120
Publication Date:
December 30, 2021
Filing Date:
January 06, 2021
Export Citation:
Assignee:
AGENCY DEFENSE DEV (KR)
International Classes:
C22C38/34; C21D1/22; C21D8/02; C22C38/22; C22C38/24; C22C38/28; C22C38/32
Foreign References:
| JPH0978193A | 1997-03-25 | |||
| US20070079912A1 | 2007-04-12 | |||
| KR20130002173A | 2013-01-07 | |||
| JP2015127444A | 2015-07-09 | |||
| JP2019173053A | 2019-10-10 |
Attorney, Agent or Firm:
MUHANN PATENT & LAW FIRM (KR)
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