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公开(公告)号：US11866828B2
公开(公告)日：2024-01-09
申请号：US17796057
申请日：2021-03-09
IPC分类号： C23C2/06 , C23C2/28 , C23C2/40 , B32B15/01 , B21D22/02 , B21D22/20 , C23C2/20 , C23C2/26 , C22C18/04 , C23C28/00 , C23C30/00 , B32B15/04 , C23C28/02 , B32B15/18
CPC分类号： C23C2/06 , B21D22/022 , B21D22/20 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C22C18/04 , C23C2/20 , C23C2/26 , C23C2/261 , C23C2/28 , C23C2/285 , C23C2/29 , C23C2/40 , C23C28/023 , C23C28/025 , C23C28/30 , C23C28/321 , C23C28/3225 , C23C28/34 , C23C28/345 , C23C30/00 , C23C30/005 , Y10T428/1266 , Y10T428/12611 , Y10T428/12618 , Y10T428/12667 , Y10T428/12799 , Y10T428/12951 , Y10T428/12958 , Y10T428/12972 , Y10T428/2495 , Y10T428/24967 , Y10T428/26 , Y10T428/265 , Y10T428/27
摘要： A plated steel sheet for hot stamping including a base metal and a galvanized layer that is formed on a surface of the base metal, wherein the galvanized layer includes a galvannealed layer, a solidified zinc layer, and an oxide layer containing Al, in this order from the base metal, and a proportion of a content of Zn (g/m2) in the solidified zinc layer to a content of Zn (g/m2) in the galvanized layer is 10 to 95%.
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公开(公告)号：US11878488B2
公开(公告)日：2024-01-23
申请号：US17791696
申请日：2020-03-23
发明人： Akihiro Sengoku , Kojiro Akiba , Satoshi Kato
IPC分类号： B32B15/01 , C22C18/00 , C23C28/00 , B21D22/20 , C25D5/36 , C23C2/06 , C23C30/00 , B21D22/02 , B32B15/18 , B32B15/04 , C23C28/02 , C23C2/30 , C23C2/28 , C23C2/04 , C23C2/26
CPC分类号： B32B15/013 , B21D22/022 , B21D22/20 , B32B15/011 , B32B15/04 , B32B15/043 , B32B15/18 , C22C18/00 , C23C2/04 , C23C2/06 , C23C2/26 , C23C2/285 , C23C2/30 , C23C28/023 , C23C28/025 , C23C28/321 , C23C28/3225 , C23C30/00 , C23C30/005 , C25D5/36 , Y10T428/12799 , Y10T428/12958 , Y10T428/12972
摘要： A hot stamped component, includes: a base material; and a Zn-based plating layer provided in contact with the base material as an upper layer of the base material and containing Zn and Ni. A region of the Zn-based plating layer on a base material side is a Fe—Zn solid solution containing Ni, and two or more twins exist in 10 crystal grains of the Fe—Zn solid solution containing Ni adjacent to an interface between the base material and the Zn-based plating layer.
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公开(公告)号：US11846027B2
公开(公告)日：2023-12-19
申请号：US17786902
申请日：2020-03-23
发明人： Akihiro Sengoku , Kojiro Akiba , Toshiki Nonaka
IPC分类号： C23C2/06 , C23C28/00 , C23C30/00 , B32B15/01 , C23C2/30 , C23C28/02 , C23C2/26 , C23C2/28 , C23C2/04 , B32B15/04 , B32B15/18 , B21D22/02
CPC分类号： C23C2/06 , B32B15/011 , B32B15/013 , B32B15/04 , B32B15/043 , B32B15/18 , C23C2/04 , C23C2/26 , C23C2/285 , C23C2/30 , C23C28/023 , C23C28/025 , C23C28/321 , C23C28/3225 , C23C30/00 , C23C30/005 , B21D22/022 , Y10T428/12799 , Y10T428/12958 , Y10T428/12972
摘要： A hot stamped component, includes: a base material; and a Zn-based plating layer provided in contact with the base material as a layer above the base material and containing Zn. A base material side of the Zn-based plating layer is a Fe—Zn solid solution, and two or more twins exist in 10 crystal grains of the Fe—Zn solid solution adjacent to an interface between the base material and the Zn-based plating layer.
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公开(公告)号：US11473164B2
公开(公告)日：2022-10-18
申请号：US16981160
申请日：2019-03-19
发明人： Takuya Nishio , Kojiro Akiba , Yoshimasa Narita , Kotaro Ohno , Satoshi Kato , Masafumi Azuma
IPC分类号： B32B15/01 , C21D6/00 , C21D8/02 , C21D9/46 , C22C38/38 , C22C38/32 , C22C38/22 , C22C38/14 , C22C38/06 , C22C38/02 , C22C38/00 , C23C2/40 , C22C38/04 , C22C38/24 , C23C2/06 , B32B15/04 , C23C30/00 , C23C28/02 , B32B15/18 , C23C2/28 , C23C28/00 , C22C38/18 , C22C38/48 , C22C38/26 , C22C38/28 , C22C38/44 , C22C38/54 , C22C38/50 , C22C38/12 , C22C38/46 , C21D1/19 , C21D1/22 , C21D1/76
摘要： This high-strength cold-rolled steel sheet has a predetermined chemical composition, wherein a microstructure at a ¼ position of a sheet thickness from a surface includes predetermined ranges of volume percentages of tempered martensite, residual austenite, ferrite and bainite, and martensite, wherein a microstructure at a position 25 μm from the surface includes, predetermined ranges of volume percentage of ferrite and bainite, and martensite and tempered martensite, wherein in the position 25 μm from the surface, an average grain size of the martensite and the tempered martensite is 5.0 μm or less, a tensile strength is 1,310 MPa or more, and a uniform elongation is 5.0% or more, and R/t is 5.0 or less, the R/t being a ratio of a limit bend radius R in 90° V-bending to a sheet thickness t.
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