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公开(公告)号：US11884998B2
公开(公告)日：2024-01-30
申请号：US16499830
申请日：2017-03-31
摘要： Provided is a surface treated steel sheet which includes a base metal, and a plated layer formed on a surface of the base metal, wherein an average composition of the plated layer contains, in mass %, Mg: 0.5 to 2.0%, and [60.0≤Zn+Al≤98.0], [0.4≤Zn/Al≤1.5], and [Zn/Al×Mg≤1.6] are satisfied.
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公开(公告)号：US11814732B2
公开(公告)日：2023-11-14
申请号：US18009015
申请日：2021-09-07
IPC分类号： C23C2/06 , C23C2/28 , C22C18/04 , B32B15/01 , B32B15/04 , B32B15/18 , C22C18/00 , C23C2/26 , C23C28/02 , C23C28/00 , C23C30/00 , C21D1/26 , C21D8/02 , C21D9/46
CPC分类号： C23C2/06 , B32B15/013 , B32B15/016 , B32B15/04 , B32B15/043 , B32B15/18 , C21D1/26 , C21D8/0278 , C21D9/46 , C22C18/00 , C22C18/04 , C23C2/26 , C23C2/28 , C23C2/29 , C23C28/025 , C23C28/3225 , C23C30/00 , C23C30/005 , Y10T428/12792 , Y10T428/12799 , Y10T428/12972 , Y10T428/26
摘要： A hot-dip plated steel includes a base steel and a hot-dip plating layer on a surface of the base steel, a chemical composition of the hot-dip plating layer contains, by mass %, Al: 10.00% to 30.00%, Mg: 3.00% to 12.00%, Sn: 0% to 2.00%, Si: 0% to 2.50%, Ca: 0% to 3.00%, Ni: 0% or more and less than 0.25%, Fe: 0% to 5.00%, and the like, a remainder includes Zn and impurities, a metallographic structure of the hot-dip plating layer contains 5 to 45 area % of an α phase having a grain diameter of 0.5 to 2 μm, the metallographic structure of the hot-dip plating layer contains 15 to 70 area % of a MgZn2 phase, and, among the α phases having the grain diameter of 0.5 to 2 μm, an area ratio of an α phase having a (111)α//(0001)MgZn2 orientation relationship to the adjacent MgZn2 phase is 25% to 100%.
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公开(公告)号：US11697266B2
公开(公告)日：2023-07-11
申请号：US17435613
申请日：2020-04-16
IPC分类号： B32B15/01 , C22C38/04 , C22C38/02 , C22C18/00 , C23C2/06 , C23C2/20 , C23C2/28 , C23C2/40 , C22C18/04 , C23C2/02 , C23C28/02 , C23C2/26 , C23C30/00 , C23C2/12 , B32B15/04 , B32B15/18 , C23C2/04 , C22C38/00
CPC分类号： B32B15/013 , B32B15/012 , B32B15/04 , B32B15/043 , B32B15/18 , C22C18/00 , C22C18/04 , C22C38/02 , C22C38/04 , C23C2/02 , C23C2/04 , C23C2/06 , C23C2/12 , C23C2/20 , C23C2/26 , C23C2/28 , C23C2/40 , C23C28/02 , C23C28/023 , C23C28/025 , C23C30/00 , C23C30/005 , C22C38/00 , Y10T428/12757 , Y10T428/12792 , Y10T428/12951 , Y10T428/12958 , Y10T428/12972 , Y10T428/12979
摘要： A plated steel includes: a steel; and a plating layer that is provided on a surface of the steel, in which the plating layer includes, by mass %, Al: 5.00% to 35.00%, Mg: 2.50% to 13.00%, Fe: 5.00% to 40.00%, Si: 0% to 2.00%, Ca: 0% to 2.00%, and a remainder of Zn and impurities, and in a cross section of the plating layer, the area fraction of a Zn solid-solution Fe2Al5 phase in which 5% or more of Zn is solid-soluted is 10% to 60% and the area fraction of a MgZn2 phase is 10% to 90%.
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公开(公告)号：US12071691B2
公开(公告)日：2024-08-27
申请号：US18250774
申请日：2021-12-24
IPC分类号： C23C2/06 , B32B15/01 , C21D1/74 , C21D6/00 , C21D8/02 , C21D9/46 , C22C18/04 , C22C38/02 , C22C38/04 , C23C2/40
CPC分类号： C23C2/06 , B32B15/013 , C21D1/74 , C21D6/005 , C21D6/008 , C21D8/0205 , C21D8/0236 , C21D8/0278 , C21D9/46 , C22C18/04 , C22C38/02 , C22C38/04 , C23C2/40
摘要： A plated steel sheet for automobile structural members has a steel sheet, a plating layer formed on at least a part of a surface of the steel sheet, and an oxide layer formed on at least a part of a surface of the plating layer, the plating layer has a predetermined chemical composition, and when measurement by XPS is performed at a position 5.0 nm below a surface of the oxide layer in a thickness direction, IMg/IMgOx, which is the ratio of a maximum detected intensity of Mg to a maximum detected intensity of an oxide or hydroxide of Mg, is 0.00 or greater and 1.20 or less.
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公开(公告)号：US11987863B2
公开(公告)日：2024-05-21
申请号：US18040903
申请日：2021-08-19
IPC分类号： C22C18/04 , B32B15/01 , B32B15/04 , B32B15/18 , C21D9/46 , C22C18/00 , C22C21/00 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/40 , C23C30/00
CPC分类号： C22C18/04 , B32B15/012 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C21D9/46 , C22C18/00 , C22C21/00 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/022 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/285 , C23C2/29 , C23C2/40 , C23C30/00 , C23C30/005 , Y10T428/1259 , Y10T428/12667 , Y10T428/12757 , Y10T428/12799 , Y10T428/12958 , Y10T428/12972 , Y10T428/2495 , Y10T428/24967 , Y10T428/265
摘要： A plated steel sheet includes: a steel sheet; and a plating layer that is formed on at least a part of a surface of the steel sheet, in which a chemical composition of the plating layer includes, b mass %, Al: 6.00% to 35.00 %, Mg: 3.00% to 15.00%, La+Ce: 0.0001% to 0.5000% in total, and Zn, and in a surface of the plating layer, the area ratio of a lamellar structure in which an (Al—Zn) phase and a MgZn2 phase are arranged in layers is 10% to 95%, the lamellar spacing of the lamellar structure is 2.5 μm or less, and the area ratio of an (Al—Zn) dendrite is 10% or less.
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公开(公告)号：US11725259B2
公开(公告)日：2023-08-15
申请号：US17427544
申请日：2020-04-16
IPC分类号： C22C18/04 , C23C2/28 , C23C2/06 , C23C2/40 , C22C38/02 , C22C38/04 , B32B15/01 , C23C2/12 , C22C18/00 , C23C2/02 , C23C2/26 , C23C28/02 , C23C30/00 , C22C21/00 , B32B15/04 , C23C28/00 , C21D9/46 , B32B15/18 , C22C38/00 , C22C38/06
CPC分类号： C22C18/04 , B32B15/012 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C21D9/46 , C22C18/00 , C22C21/00 , C22C38/02 , C22C38/04 , C23C2/02 , C23C2/06 , C23C2/12 , C23C2/26 , C23C2/28 , C23C2/285 , C23C2/40 , C23C28/02 , C23C28/023 , C23C28/025 , C23C28/3225 , C23C30/00 , C23C30/005 , C22C38/00 , C22C38/06 , Y10T428/12757 , Y10T428/12799 , Y10T428/12958 , Y10T428/12972
摘要： A plated steel sheet having excellent chemical convertibility includes: a steel; and a plating layer that is provided on a surface of the steel, in which the plating layer includes, by mass %, Al: 5.00% to 35.00%, Mg: 2.50% to 13.00%, Fe: 5.00% to 35.00%, Si: 0% to 2.00%, Ca: 0.03% to 2.00%, and a remainder consisting of Zn and impurities, and in a surface of the plating layer, the area fraction of a Fe—Al phase is 0% to 30%, the area fraction of a rod-like lamellar structure of Zn and MgZn2 is 5% to 90%, the area fraction of a massive MgZn2 phase is 10% to 70%, and the area fraction of a remainder is 10% or less.
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公开(公告)号：US12110595B2
公开(公告)日：2024-10-08
申请号：US18285777
申请日：2023-03-31
摘要： The hot-dip plated steel material includes a steel material and a hot-dip plated layer disposed on a surface of the steel material, the hot-dip plated layer has a certain chemical composition, and the hot-dip plated layer has a diffraction intensity obtained from a result of X-ray diffraction measurement, the diffraction intensity satisfying a certain relationship.
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公开(公告)号：US11584981B2
公开(公告)日：2023-02-21
申请号：US17421954
申请日：2020-04-16
摘要： A plated steel sheet having excellent post-coating corrosion resistance includes: a steel; and a plating layer that is provided on a surface of the steel, in which the plating layer includes, by mass %, Al: 5.00% to 35.00%, Mg: 2.50% to 13.00%, Fe: 5.00% to 35.00%, Si: 0% to 2.00%, Ca: 0% to 2.00%, and a remainder consisting of Zn and impurities, and in a cross section of the plating layer, the area fraction of a Fe2Al5 phase is 5.0% to 60.0%, the area fraction of an eutectic structure of Zn and MgZn2 is 10.0% to 80.0%, the area fraction of a massive MgZn2 phase is 5.0% to 40.0%, and the area fraction of a remainder is 10.0% or less.
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公开(公告)号：US12031201B2
公开(公告)日：2024-07-09
申请号：US17614623
申请日：2020-05-29
IPC分类号： C22C18/00 , B32B15/01 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/60 , C25D3/22
CPC分类号： C22C38/32 , B32B15/013 , C22C18/00 , C22C38/001 , C22C38/002 , C22C38/005 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/20 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/60 , C25D3/22
摘要： The present invention relates to a plated steel sheet for hot stamping comprising a steel sheet and a Zn—Ni plating layer formed on at least one surface of the steel sheet, wherein the Zn—Ni plating layer has an Ni concentration of 8 mass % or more, a plating deposition amount of 10 g/m2 or more and 90 g/m2 or less per surface, and an average grain size of 50 nm or more, and a difference between a diffraction peak of the Zn—Ni plating layer after heat treating the plated steel sheet for hot stamping at 200° C. for 1 hour, and a diffraction peak of the Zn—Ni plating layer before heat treating it, is 0.3° or less.
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公开(公告)号：US11965250B2
公开(公告)日：2024-04-23
申请号：US17636486
申请日：2020-08-28
摘要： A hot stamped steel includes a base material, a plated layer that is formed on a surface of the base material, and an oxide film that is formed on a surface of the plated layer; chemical composition of the plated layer contains 20.00 to 45.00 mass % of Al, 10.00 to 45.00 mass % of Fe, 4.50 to 15.00 mass % of Mg, 0.10 to 3.00 mass % of Si, 0.05 to 3.00 mass % of Ca, 0 to 0.50 mass % of Sb, 0 to 0.50 mass % of Pb, 0 to 1.00 mass % of Cu, 0 to 1.00 mass % of Sn, 0 to 1.00 mass % of Ti, 0 to 0.50 mass % of Sr, 0 to 1.00 mass % of Cr, 0 to 1.00 mass % of Ni, and 0 to 1.00 mass % of Mn with a remainder of Zn and impurities; and chemical composition of the oxide film contains 20.0 to 55.0 at % of Mg, 0.5 to 15.0 at % of Ca, 0 to 15.0 at % of Zn, and 0 at % or more and less than 10.0 at % of Al with a remainder of O and a total of 5.0 at % or less of impurities, and the adhesion amount of the oxide film per one surface is in a range of 0.01 to 10 g/m2.
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