公开(公告)号：EP3405593A1

公开(公告)日：2018-11-28

申请号：EP16701442.2

申请日：2016-01-20

申请人： ThyssenKrupp Steel Europe AG ,  thyssenkrupp AG ,  Max-Planck-Institut für Eisenforschung GmbH

发明人： HOFMANN, Harald ,  FERKEL, Hans ,  GÖVERT, Michael ,  SCHIRMER, Matthias ,  PALM, Martin ,  PONGE, Dirk ,  LEITNER, Andreas

IPC分类号： C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32 ,  C21D8/02 ,  C21D6/02

CPC分类号： C22C38/00 ,  C21D8/0226 ,  C21D8/0263 ,  C21D9/46 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32

摘要： The invention relates to a reliably producible flat steel product based on an Fe
3 Al alloy and a method permitting the production of flat steel products of this type. The flat steel product is produced from a steel that consists of (in wt.%) Al: 12-20 %, Ti: 0.2-2 %, B: 0.1-0.6 %, and optionally at least one element from the group "Cr, C, Mn, Si, Nb, Ta, W, Zr, V, Mo, Ni, Cu, Ca, SEM, Co" in the following amounts: N: ≤ 0.1 %; Cr: ≤ 7 %; C: ≤ 0.15 %; Mn: ≤ 2 %; Si: 0.05-5 %; Nb, Ta, W: in total ≤ 0.2 %; Zr: ≤ 1 %; V: ≤ 1 %; Mo: ≤ 1 %; Ni: ≤ 2 %; Cu: ≤ 3 %; Ca: ≤ 0.015 %; SEM: ≤ 0.2 %; Co: ≤ 1 %, the remainder being Fe and unavoidable impurities, wherein the impurities include ≤ 0.03 % S and ≤ 0.1 % P. Here, for the Ti content % Ti and B content % B of the steel, it is the case that 0.33 ≤ %Ti/%B ≤ 3.75. At the same time, the structure of the flat steel products consists of 0.3-5 vol.% TiB
2 precipitations, which are embedded in a structure matrix comprising at least 80 vol.% Fe
3 Al. The method according to the invention proposes casting a steel melt comprising the stated composition to form an intermediate product in the form of a slab, thin slab or a cast strip, hot-rolling said intermediate product at 1000-1300°C and a final hot-rolling temperature of at least 850°C to form a hot-rolled strip and finally winding the obtained hot strip at a winding temperature between room temperature and 750°C.

公开(公告)号：EP3718164A1

公开(公告)日：2020-10-07

申请号：EP18812095.0

申请日：2018-11-22

申请人： ThyssenKrupp Steel Europe AG ,  thyssenkrupp AG

发明人： KALEMBA, Dieter ,  SCHONGEN, Fabian ,  GRUNDEN, Philipp ,  PATBERG, Lothar ,  WALTER, Andreas ,  FERKEL, Hans

IPC分类号： H01M10/6556 ,  F01D25/14 ,  G06F1/20

公开(公告)号：EP3429792A1

公开(公告)日：2019-01-23

申请号：EP17709620.3

申请日：2017-03-02

申请人： ThyssenKrupp Steel Europe AG ,  Thyssenkrupp AG

发明人： FERKEL, Hans ,  MYSLOWICKI, Stefan

IPC分类号： B23K20/04 ,  B23K20/24 ,  B23K20/227 ,  B23K20/233 ,  B23K103/04 ,  B23K103/10 ,  B23K103/16

公开(公告)号：EP3420121A1

公开(公告)日：2019-01-02

申请号：EP16709713.8

申请日：2016-02-24

申请人： ThyssenKrupp Steel Europe AG ,  Evonik Degussa GmbH

发明人： FERKEL, Hans ,  LEWE, Tobias ,  RUDACK, Markus ,  WERNER, Bettina ,  BRAND, Thorsten ,  MOHR, Thomas ,  NUMRICH, Uwe ,  PUKROP, Denis

IPC分类号： C23F13/08 ,  C09D127/12