公开(公告)号：EP3835448B1

公开(公告)日：2024-10-02

申请号：EP19847417.3

申请日：2019-08-02

IPC分类号： C22C38/04 ,  C22C38/02 ,  C22C38/06 ,  C22C38/12 ,  C22C38/08 ,  C22C38/00 ,  C21D8/02 ,  C21D9/50 ,  C22C38/10 ,  C21D6/00 ,  C22C38/14 ,  C22C38/16

CPC分类号： C22C38/00 ,  C22C38/12 ,  C21D9/50 ,  C22C38/04 ,  C22C38/16 ,  C22C38/02 ,  C22C38/14 ,  C22C38/08 ,  C22C38/06 ,  C21D8/02 ,  C22C38/001 ,  C21D2211/00520130101 ,  C21D8/0226 ,  C21D8/0273 ,  C21D8/0294 ,  C21D6/00

公开(公告)号：EP3604595B1

公开(公告)日：2024-04-24

申请号：EP18776105.1

申请日：2018-03-20

IPC分类号： C22C38/00 ,  C22C38/58 ,  C22C38/60 ,  B23K9/23 ,  B23K35/30 ,  C21D6/00 ,  C22C38/34 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  F16K27/00

CPC分类号： C22C38/00 ,  C22C38/58 ,  C22C38/60 ,  B23K35/30 ,  C21D6/00 ,  B23K9/23 ,  C22C38/44 ,  C22C38/34 ,  C22C38/48 ,  C22C38/42 ,  B23K2103/0520180801 ,  B23K26/32 ,  Y02E60/32

公开(公告)号：EP3496114A1

公开(公告)日：2019-06-12

申请号：EP17837033.4

申请日：2017-08-02

申请人： Toyota Jidosha Kabushiki Kaisha ,  Monash University

发明人： ONODERA, Kiyotaka ,  SUZUKI, Kiyonori ,  PARSONS, Richard ,  ZANG, Bowen

IPC分类号： H01F1/153 ,  C21D6/00 ,  C22C38/00 ,  C22C45/02

CPC分类号： C21D6/00 ,  C22C33/003 ,  C22C38/00 ,  C22C45/02 ,  C22C2200/02 ,  C22C2202/02 ,  H01F1/153 ,  H01F1/1535

摘要： Provided is a method for producing a soft magnetic material having both high saturation magnetization and low coercive force.
The method for producing a soft magnetic material comprises preparing a alloy having a composition represented by the following Compositional Formula 1 or Compositional Formula 2 and having an amorphous phase, and heating the alloy at a rate of temperature rise of 10°C/sec or more and holding for 0 to 80 seconds at a temperature equal to or higher than the crystallization starting temperature and lower than the temperature at which Fe-B compounds start to form wherein, the Compositional Formula 1 is Fe 100-x-y B x M y , M represents at least one element selected from Nb, Mo, Ta, W, Ni, Co and Sn, and x and y are in atomic percent (at%) and satisfy the relational expressions of 10≤x≤16 and 0≤y≤8, and the Compositional Formula 2 is Fe 100-a-b-c B a Cu b M' c , M' represents at least one element selected from Nb, Mo, Ta, W, Ni and Co, and a, b and c are in atomic percent (at%) and satisfy the relational expressions 10≤a≤16, 0

公开(公告)号：EP3395978A1

公开(公告)日：2018-10-31

申请号：EP16879340.4

申请日：2016-12-21

申请人： Posco

发明人： CHO, Won-Tae ,  KIM, Tai-Ho ,  CHIN, Kwang-Geun ,  KIM, Young-Ha ,  SONG, Tae-Jin

IPC分类号： C22C38/04 ,  C22C38/00 ,  C22C38/14 ,  C22C38/58 ,  C22C38/54 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C21D6/00

CPC分类号： C21D6/00 ,  C21D6/005 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0247 ,  C21D9/46 ,  C22C38/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/04 ,  C22C38/14

摘要： The present invention relates to a high Mn steel sheet and a manufacturing method therefor, the steel sheet comprising, by wt%: 0-0.1% or less of C; 8-30% of Mn; 0.1% or less of P; 0.02% or less of S; 0.1% or less of N; 0-1.0% of Ti; and Fe and inevitable impurities, wherein a microstructure has epsilon martensite and austenite, and the average particle diameter of the martensite and the austenite is 2 µm or less.

公开(公告)号：EP3263732A4

公开(公告)日：2018-07-11

申请号：EP16755632

申请日：2016-02-25

申请人： NAT INSTITUTE FOR MATERIALS SCIENCE

发明人： KIMURA KAZUHIRO ,  SAWADA KOTA ,  KUSHIMA HIDEAKI ,  TANIUCHI YASUSHI ,  OHBA TOSHIO

IPC分类号： C22C38/00 ,  C21D6/00 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32

CPC分类号： C21D6/008 ,  C21D1/28 ,  C21D6/00 ,  C21D6/002 ,  C21D6/004 ,  C21D6/005 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/00 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32

摘要： The invention provides a ferritic heat-resistant steel whose creep rupture ductility in a long-term region is improved without detrimental to creep strengths. The ferritic heat-resistant steel has a chemical composition comprising, in % by mass, C: 0.03 to 0.15, Si: 0 to 0.8, Mn: 0.1 to 0.8, Cr: 8.0 to 11.5, Mo: 0.2 to 1.5, (W: 0.4 to 3.0), V: 0.1 to 0.4, Nb: 0.02 to 0.12 N: 0.02 to 0.10 with the balance of iron and inevitable impurities. This steel has a tempered martensite microstructure, and has an improved creep rupture ductility even when there is a load within the elastic limits at temperatures at which the ferritic heat-resistant steel is used, because internal strain or internal stress induced by martensitic transformation is relaxed or released by an intermediate tempering heat treatment in a two-phase state temperature in which a portion of an austenitic phase undergoes martensitic transformation.

公开(公告)号：EP2617851B1

公开(公告)日：2018-07-11

申请号：EP11825306.1

申请日：2011-09-15

申请人： JFE Steel Corporation

发明人： NAKAJIMA, Katsumi ,  SAITO, Hayato ,  FUNAKAWA, Yoshimasa ,  MORIYASU, Noriaki ,  MURATA, Takayuki

IPC分类号： C22C38/00 ,  B21B3/00 ,  C21D9/46 ,  C22C38/14 ,  C22C38/58

CPC分类号： C21D8/005 ,  B32B15/013 ,  C21D6/00 ,  C21D8/0226 ,  C21D9/46 ,  C21D2211/002 ,  C22C38/001 ,  C22C38/002 ,  C22C38/005 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/18 ,  C22C38/42 ,  C22C38/44

摘要： A high strength hot rolled steel sheet having excellent blanking workability is provided. The composition contains C: 0.050 to 0.15%, Si: 0.1 to 1.5%, Mn: 1.0 to 2.0%, P: 0.03% or less, S: 0.0030% or less, Al: 0.01 to 0.08%, Ti: 0.05 to 0.15%, N: 0.005% or less, and the balance being Fe and unavoidable impurities. More than 95% of the microstructure is formed of a bainite phase in terms of area fraction. Average grain diameters of the bainite phase in a region having a thickness equal to 1/4 of the sheet thickness from the surface in the sheet thickness direction is 5 µm or less in an L-direction cross section and 4 µm or less in a C-direction cross section. The number of crystal grains extended in the rolling direction and having an aspect ratio of 5 or more is 7 or less in a sheet thickness center portion. As a result, the strength is increased to a tensile strength TS of 780 MPa or more, the blanked edge forms a fine and uniform ductile fracture surface, and a hot rolled steel sheet having excellent properties at blanked edges and excellent blanking workability is obtained.

公开(公告)号：EP2128294B1

公开(公告)日：2018-05-23

申请号：EP09001551.2

申请日：2009-02-04

申请人： The Japan Steel Works, Ltd.

发明人： Sato, Shinya ,  Kayano, Rinzo ,  Nitta, Yukio ,  Sakuraba, Masahiro

IPC分类号： C22C38/00 ,  C22C38/02 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  B32B15/01

CPC分类号： C22C38/04 ,  B32B15/011 ,  C21D6/00 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/06 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  C22C38/50

摘要： A base metal for a clad steel plate has a composition which contains 0.05 to 0.10% of C, 0.10 to 0.30% of Si, 1.30 to 1.70% of Mn, 0.015% or less of P, 0.005% or less of S, 0.10 to 0.60% of Ni, 0.10 to 0.45% of Cr, 0.05 to 0.40% of Cu, 0.05 to 0.40% of Mo, 0.02 to 0.06% of V, 0.03 to 0.10% of Nb, 0.005 to 0.025% of Ti, 0.020 to 0.050% of A1, 0.0010 to 0.0040% of Ca and 0.0030 to 0.0100% of N with the remainder including Fe and inevitable impurities and in which the content of Ni, Cr, Cu and Mo satisfies the equation 0.70%‰¤Ni+Cr+Cu+Mo‰¤1.30%.

公开(公告)号：EP3239318A4

公开(公告)日：2018-05-09

申请号：EP15872569

申请日：2015-11-19

申请人： HITACHI METALS LTD

发明人： YOSHIZAWA YOSHIHITO

IPC分类号： C22C38/00 ,  C21D1/04 ,  C21D6/00 ,  C21D8/02 ,  C21D8/12 ,  C21D9/52 ,  C22C38/02 ,  C22C38/04 ,  C22C38/10 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C45/02 ,  H01F1/153 ,  H01F1/16 ,  H01F38/20

CPC分类号： H01F1/15308 ,  C21D1/04 ,  C21D6/00 ,  C21D6/001 ,  C21D6/007 ,  C21D6/008 ,  C21D8/0205 ,  C21D8/0263 ,  C21D8/1261 ,  C21D9/52 ,  C22C38/00 ,  C22C38/002 ,  C22C38/008 ,  C22C38/02 ,  C22C38/04 ,  C22C38/105 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C45/02 ,  C22C2202/02 ,  H01F1/16 ,  H01F38/20

摘要： Conventional Fe-based soft magnetic alloy ribbons each containing Co and Ni have a problem that magnetic anisotropy that is neatly arranged in one direction cannot be induced easily even by a magnetic field annealing treatment and, therefore, a wound magnetic cores, a problem that a residual magnetic flux density Br is high, a problem that the hysteresis of the B-H curve becomes large (coercivity Hc becomes large), a problem that the change in incremental permeability relative to superimposed magnetic field becomes large, and others. In order to solve the problems, provided is an Fe-based soft magnetic alloy ribbon including a Cu-concentrated region present directly below a surface of the ribbon, and a Co-concentrated region present directly below the Cu-concentrated region. Also provided is a magnetic core including the Fe-based soft magnetic alloy ribbon.

公开(公告)号：EP3305934A4

公开(公告)日：2018-05-02

申请号：EP16894605

申请日：2016-12-27

申请人： HITACHI METALS LTD

发明人： SHOUJI TATSUYA ,  MISHIMA SETSUO ,  SHINJI YUKIO ,  KURODA KATSUFUMI

IPC分类号： C22C38/00 ,  C21D6/00 ,  C21D9/00 ,  C22C38/36 ,  C22C38/60

CPC分类号： C21D6/00 ,  C21D9/00 ,  C22C38/00 ,  C22C38/36 ,  C22C38/60

摘要： Provided are a cold working tool material with which high hardness can be obtained in a broad range of tempering temperatures, and a cold working tool manufacturing method using same. The present invention is a cold working tool material comprising a steel component composition that contains, in mass%, C: 0.65-2.40%, Cr: 5.0-15.0%, Mo and W alone or combined (Mo+1/2W): 0.50-4.00%, V: 0.10-1.50%, and N: greater than 0.0300% to 0.0800%, in which martensitic structure can be adjusted by quenching, and in which, in a 90 µm long 90 µm wide region of a cross-sectional structure that does not contain carbides with equivalent circle diameters exceeding 5.0 µm, the number density of carbides A with equivalent circle diameters greater than 0.1 µm to 2.0 µm is at least 9.0 × 105/mm2 and the number density of carbides B with equivalent circle diameters greater than 0.1 µm to 0.4 µm is at least 7.5 × 105/mm2. The present invention is also a cold working tool manufacturing method in which quenching and tempering are performed on said cold working tool material.

公开(公告)号：EP2111475B1

公开(公告)日：2018-03-14

申请号：EP07801785.2

申请日：2007-08-21

申请人： Daimler AG

发明人： HAUG, Tilmann ,  KLEINEKATHÖFER, Wolfgang ,  Pol, Frédéric

IPC分类号： C22C38/00

CPC分类号： C22C38/18 ,  B21D22/208 ,  C21D6/00 ,  C21D8/00 ,  C21D8/005 ,  C22C38/02 ,  C22C38/06