Title:
METHOD FOR PRODUCING A STEEL STRIP HAVING A DUAL-PHASE MICROSTRUCTURE
Document Type and Number:
WIPO Patent Application WO/2010/015251
Kind Code:
A3
Abstract:
The invention relates to a method for producing a semi-finished product, especially steel strip, having a dual-phase microstructure and a tensile strength between 500 and 1000 MPa. The invention is characterized in that in order to establish a microstructure made of hard components such as martensite, bainite, and carbide having low percentages of residual austenite in a ferritic matrix which is substantially free of interstitially dissolved elements (IF character), the elements interstitially dissolved in the ferritic matrix such as carbon and nitrogen are bound by carbide-, nitride-, or carbon nitride-forming alloying elements such as Al, Mo, Nb, Ti, and V.
Inventors:
KLINKENBERG CHRISTIAN (DE)
BILGEN CHRISTIAN (DE)
BILGEN CHRISTIAN (DE)
Application Number:
PCT/DE2009/001136
Publication Date:
July 01, 2010
Filing Date:
August 07, 2009
Export Citation:
Assignee:
SMS SIEMAG AG (DE)
KLINKENBERG CHRISTIAN (DE)
BILGEN CHRISTIAN (DE)
KLINKENBERG CHRISTIAN (DE)
BILGEN CHRISTIAN (DE)
International Classes:
C21D8/02
Domestic Patent References:
| WO2008068352A2 | 2008-06-12 |
Foreign References:
| GB2445749A | 2008-07-23 | |||
| EP1391526A2 | 2004-02-25 |
Other References:
See also references of EP 2318556A2
Attorney, Agent or Firm:
KLÜPPEL, Walter et al. (Siegen, DE)
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