Title:
HIGH MANGANESE NITROGEN-CONTAINING STEEL SHEET HAVING HIGH STRENGTH AND HIGH DUCTILITY, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2010/126268
Kind Code:
A2
Abstract:
Provided is a high manganese nitrogen-containing steel sheet. The high manganese nitrogen-containing steel sheet according to the present invention comprises 0.5 to 1.0 wt % of carbon, 10 to 20 wt % of manganese, 0.02 to 0.3 wt % of nitrogen, with a remainder of Fe and unavoidable impurities. The high manganese nitrogen-containing steel sheet according to the present invention produces an austenite phase at room temperature, in which the stacking fault energy is effectively controlled by adding chrome and nitrogen. Accordingly, the high manganese nitrogen-containing steel sheet of the present invention produces a mechanical twin during the plastic deformation of the steel sheet, thereby increasing the work hardening rate, tensile strength, and workability.
Inventors:
LEE YOUNG KOOK (KR)
JUNG YEON SEUNG (KR)
KANG SIN GON (KR)
MIN DONG JOON (KR)
JUNG YEON SEUNG (KR)
KANG SIN GON (KR)
MIN DONG JOON (KR)
Application Number:
PCT/KR2010/002625
Publication Date:
November 04, 2010
Filing Date:
April 27, 2010
Export Citation:
Assignee:
IND ACAD COOP DAEGU HAANY UNIV (KR)
LEE YOUNG KOOK (KR)
JUNG YEON SEUNG (KR)
KANG SIN GON (KR)
MIN DONG JOON (KR)
LEE YOUNG KOOK (KR)
JUNG YEON SEUNG (KR)
KANG SIN GON (KR)
MIN DONG JOON (KR)
International Classes:
C22C38/04; C21D8/02; C22C38/58
Foreign References:
| KR940007374B1 | 1994-08-16 | |||
| KR100851158B1 | 2008-08-08 | |||
| KR20060040718A | 2006-05-10 | |||
| KR20070085757A | 2007-08-27 | |||
| KR100241016B1 | 2000-03-02 | |||
| JP2007326150A | 2007-12-20 |
Other References:
See references of EP 2431492A4
Attorney, Agent or Firm:
LEE, Chae Hyung et al. (KR)
이채형 (KR)
이채형 (KR)
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