-
公开(公告)号：US20240301525A1
公开(公告)日：2024-09-12
申请号：US18662318
申请日：2024-05-13
发明人： Takaaki TANAKA , Tomoyuki OKUBO
IPC分类号： C21D9/46 , C21D6/00 , C21D8/12 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/34 , C22C38/60 , H01F1/147
CPC分类号： C21D9/46 , C21D6/002 , C21D6/005 , C21D6/007 , C21D6/008 , C21D8/1222 , C21D8/1233 , C21D8/1261 , C21D8/1277 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/10 , C22C38/12 , C22C38/34 , C22C38/60 , H01F1/14791 , C22C2202/02
摘要： A non-oriented electrical steel sheet includes, by mass %, C: 0.010% or less, Si: 1.0% or more and 5.0% or less, Mn: 0.05% or more and 5.0% or less, P: 0.1% or less, S: 0.01% or less, Al: 3.0% or less, N: 0.005% or less, and the balance being Fe and inevitable impurities, wherein an average crystal grain size is 50 μm or less, and a sum SA of area ratios of crystal grains with oriented in a rolling direction or a direction perpendicular to the rolling direction and a sum SB of area ratios of crystal grains with oriented in the rolling direction or the direction perpendicular to the rolling direction satisfy SA−SB≥0.
-
公开(公告)号：US12054798B2
公开(公告)日：2024-08-06
申请号：US17265614
申请日：2019-10-16
发明人： Yuji Arai , Shinji Yoshida , Hiroki Kamitani , Yohei Otome
CPC分类号： C21D8/105 , C21D6/004 , C21D6/005 , C21D6/007 , C21D6/008 , C21D9/085 , C22C38/001 , C22C38/44 , C22C38/46 , C22C38/54
摘要： The steel material according to the present disclosure has a chemical composition consisting of, in mass %, C: 0.15 to 0.45%, Si: 0.05 to 1.00%, Mn: 0.01 to 1.00%, P: 0.030% or less, S: 0.0050% or less, Al: 0.005 to 0.100%, Cr 0.60 to 1.80%, Mo: 0.80 to 2.30%, Ti: 0.002 to 0.020%, V: 0.05 to 0.30%, Nb: 0.002 to 0.100%, B: 0.0005 to 0.0040%, Cu: 0.01 to 0.50%, Ni: 0.01 to 0.50%, N: 0.0020 to 0.0100% and O: 0.0020% or less, with the balance being Fe and impurities. The number density of BN in the steel material is 10 to 100 particles/100 μm2. The yield strength of the steel material is 758 MPa or more.
-
公开(公告)号：US20240209470A1
公开(公告)日：2024-06-27
申请号：US18288399
申请日：2022-03-02
发明人： Shunsuke KOBAYASHI , Hiroshi SHUTO
IPC分类号： C21D9/46 , C21D1/18 , C21D1/84 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/38
CPC分类号： C21D9/46 , C21D1/18 , C21D1/84 , C21D6/001 , C21D6/002 , C21D6/005 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0263 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/38 , C21D2211/002 , C21D2211/005 , C21D2211/008
摘要： This hot-rolled steel sheet has a predetermined chemical composition and a microstructure containing, in area %, less than 3.00% of retained austenite with an Rcf value indicating a ratio between average fracture surface units before and after plastic deformation being 2.00 or more and a tensile strength of 980 MPa or more.
-
公开(公告)号：US20240158884A1
公开(公告)日：2024-05-16
申请号：US18550459
申请日：2022-02-28
发明人： Yoshiyasu KAWASAKI , Yuki TOJI , Tatsuya NAKAGAITO , Shinya YAMAGUCHI , Masayasu UENO , Katsutoshi TAKASHIMA , Tomohiro ONO
IPC分类号： C21D9/46 , B32B15/01 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/24 , C22C38/38 , C22C38/60 , C23C2/06 , C23C2/28 , C25D3/22 , C25D5/50
CPC分类号： C21D9/46 , B32B15/011 , C21D6/001 , C21D6/002 , C21D6/005 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0257 , C21D8/0263 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/004 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/24 , C22C38/38 , C22C38/60 , C23C2/06 , C23C2/285 , C25D3/22 , C25D5/50
摘要： A clad steel plate having tensile strength (TS) of 780 MPa or more, excellent ductility, bendability, collision resistance, and LME resistance. The clad steel plate having a base metal and a cladding metal on front and back surfaces of the base metal, and the chemical composition and microstructure of the base metal and the cladding metal being appropriately controlled so that the average Vickers hardness (HVL) of the cladding metal is 260 or less, the average Vickers hardness (HVL) of the cladding metal divided by the average Vickers hardness (HVB) of the base metal is 0.80 or less, the boundary roughness between the base metal and the cladding metal is 50 μm or less at the maximum height Ry, and the number of voids at the boundary between the base metal and the cladding metal is controlled to 20 or fewer per 10 mm length of the boundary.
-
公开(公告)号：US20240150863A1
公开(公告)日：2024-05-09
申请号：US18284038
申请日：2022-02-07
发明人： Katsuya NAKANO
IPC分类号： C21D9/46 , C21D6/00 , C21D8/02 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/30 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , C22C38/60
CPC分类号： C21D9/46 , C21D6/001 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/105 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/30 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , C22C38/60 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C21D2211/009
摘要： Steel sheet able to reduce die damage at the time of cold pressing, that is, steel sheet having a predetermined chemical composition and steel microstructure which has on the sheet surface a plurality of step differences having height differences of more than 5.0 μm at intervals of 2.0 mm or less.
-
公开(公告)号：US20240135052A1
公开(公告)日：2024-04-25
申请号：US18492210
申请日：2023-10-22
IPC分类号： G06F30/17 , C21D1/74 , C21D6/00 , C22C1/03 , C22C19/07 , C22C33/06 , C22C38/10 , C22C38/12 , C22F1/02 , C22F1/10 , G06N5/022 , G16C60/00
CPC分类号： G06F30/17 , C21D1/74 , C21D6/007 , C22C1/03 , C22C19/07 , C22C33/06 , C22C38/10 , C22C38/12 , C22F1/02 , C22F1/10 , G06N5/022 , G16C60/00
摘要： Methods of modeling metal alloys and forming those alloys are provided. The method involves comparing the strain accommodation and cleavage energies of a base alloy comprising a first metal and a chemical element different from the first metal. If a predetermined difference between those energies would be achieved, the base alloy will be sufficiently ductile. If that predetermined difference would not be achieved, the base alloy will not be sufficiently ductile, and the base alloy is modified (e.g., by adding a ductility component) until the predetermined difference in energies would be achieved, at which point, the alloy can be formed using conventional methods or further modified to achieve the desired degree of ductility.
-
公开(公告)号：US20240133007A1
公开(公告)日：2024-04-25
申请号：US18569882
申请日：2022-09-19
发明人： Shingo FUJINAKA , Hitomi NISHIBATA
IPC分类号： C22C38/60 , C21D1/18 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/30 , C22C38/32 , C22C38/38 , C22C38/48 , C22C38/50 , C22C38/54
CPC分类号： C22C38/60 , C21D1/18 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/30 , C22C38/32 , C22C38/38 , C22C38/48 , C22C38/50 , C22C38/54 , C21D2211/001
摘要： A hot-stamp formed body has a predetermined chemical composition and has a microstructure including, by area ratio, martensite: 90% to 100% and a remainder in the microstructure: 0% to 10%. The percentage of martensite having a GAIQ value of 40000 or less in all of the martensite is less than 5.0%, an average grain size of prior austenite grains is 6.0 μm or less, and a standard deviation of grain sizes of the prior austenite grains is 2.6 μm or less.
-
公开(公告)号：US20240084427A1
公开(公告)日：2024-03-14
申请号：US18274364
申请日：2022-02-18
发明人： Yuya SUZUKI
IPC分类号： C22C38/60 , B32B15/01 , C21D1/18 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58
CPC分类号： C22C38/60 , B32B15/013 , C21D1/18 , C21D6/001 , C21D6/002 , C21D6/004 , C21D6/005 , C21D6/007 , C21D6/008 , C21D8/0205 , C21D8/021 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0278 , C21D9/46 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/10 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/52 , C22C38/54 , C22C38/58 , C21D2211/001 , C21D2211/008 , C23C2/28
摘要： A steel sheet has a predetermined chemical composition, when a sheet thickness is denoted by t, a metallographic structure at a t/4-position, which is a position t/4 away from a surface, in a cross section in a sheet thickness direction includes, by volume percentage, martensite: 70% or greater and residual austenite: 10% or greater, the maximum grain diameter of the residual austenite is less than 5.0 μm when a Mn concentration is measured at a plurality of measurement points at intervals of 1 μm in a square region with a side length of t/4 centered at the t/4-position in the cross section in the sheet thickness direction, a proportion of measurement points at which the Mn concentration is 1.1 times or greater than the average of the Mn concentrations at all of the plurality of measurement points is less than 10.0%, and the tensile strength is 1,470 MPa or greater.
-
公开(公告)号：US11851738B2
公开(公告)日：2023-12-26
申请号：US15881299
申请日：2018-01-26
IPC分类号： B22F1/00 , B22F9/08 , B22F5/00 , H01F3/08 , H01F41/02 , C22C38/00 , C22C45/02 , H01F17/04 , H01F1/153 , C22C33/02 , B22F1/10 , B22F1/08 , C21D6/00 , C22C38/02 , C22C38/10 , C22C38/16 , H02K1/02
CPC分类号： C22C38/00 , B22F1/08 , B22F1/10 , B22F5/00 , B22F9/082 , C21D6/001 , C21D6/007 , C21D6/008 , C22C33/0278 , C22C38/002 , C22C38/02 , C22C38/105 , C22C38/16 , C22C45/02 , H01F1/15308 , H01F1/15333 , H01F1/15375 , H01F3/08 , H01F17/04 , H01F17/045 , H01F41/0246 , B22F2005/004 , B22F2301/35 , B22F2304/00 , B22F2998/10 , C21D2201/03 , C22C2200/02 , C22C2202/02 , H01F2017/048 , H02K1/02 , B22F2998/10 , B22F3/02 , B22F2003/248
摘要： A soft magnetic powder according to the present disclosure comprises a particle which comprises a plurality of nanosized crystallites and an amorphous phase existing around the crystallites, wherein the crystallites have an average grain diameter of 30 nm or less, and the amorphous phase has an average thickness of 30 nm or less; and wherein when a minor axis of a cross section of the particle is determined as r, an average Fe concentration in the amorphous phase is lower than an average Fe concentration in the crystallites in a region where a depth from a surface of the particle is 0.2 r or more and 0.4 r or less.
-
公开(公告)号：US20230374622A1
公开(公告)日：2023-11-23
申请号：US18247071
申请日：2021-08-05
发明人： Yuji TANAKA , Masaki TADA , Yuki TOJI , Shinsuke KOMINE , Yoshie OBATA , Yusuke KIMATA
IPC分类号： C21D9/46 , C22C38/60 , C22C38/38 , C22C38/34 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/10 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/00 , C21D8/02 , C21D1/18 , C21D6/00
CPC分类号： C21D9/46 , C22C38/60 , C22C38/38 , C22C38/34 , C22C38/32 , C22C38/28 , C22C38/26 , C22C38/16 , C22C38/14 , C22C38/12 , C22C38/10 , C22C38/08 , C22C38/06 , C22C38/04 , C22C38/02 , C22C38/002 , C22C38/001 , C22C38/005 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D1/18 , C21D6/001 , C21D6/002 , C21D6/005 , C21D6/007 , C21D6/008 , C21D2211/005 , C21D2211/008 , C21D2211/002 , C21D2211/001
摘要： A high-strength cold-rolled steel sheet comprises: a chemical composition that contains C, Si, Mn, P, S, N, Al, Ti, Nb, and B with a balance consisting of Fe and inevitable impurities, and satisfies [mol % N]/[mol % Ti]
-
-
-
-
-
-
-
-
-
搜索结果
333 条记录 (耗时 0.028 秒)
