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公开(公告)号：US10071416B2
公开(公告)日：2018-09-11
申请号：US12709133
申请日：2010-02-19
申请人： James Geoffrey Williams , Harold Roland Kaul , Daniel Geoffrey Edelman , Christopher Ronald Killmore
发明人： James Geoffrey Williams , Harold Roland Kaul , Daniel Geoffrey Edelman , Christopher Ronald Killmore
IPC分类号： B22D11/00 , B22D11/06 , B22D11/117 , C21D6/02 , C21D8/02 , C22C38/02 , C22C38/04 , C22C38/12
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C21D6/02 , C21D8/0215 , C21D2211/002 , C21D2211/004 , C21D2211/005 , C22C38/02 , C22C38/04 , C22C38/12
摘要： A steel product or thin steel cast strip including, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, less than 0.01% aluminum, and at least one of niobium between 0.01% and 0.20% and vanadium between 0.01% and 0.20%, and a microstructure of a majority bainite and acicular ferrite, and more than 70% niobium and/or vanadium in solid solution. The steel product may have an increase in elongation and an increase in yield strength after age hardening. The age hardened steel product may have niobium carbonitride particles with an average particle size of 10 nanometers and less, and may have substantially no niobium carbonitride particles greater than 50 nanometers. The steel product may have a yield strength of at least 380 MPa, a tensile strength of at least 410 MPa, or both. The product may have a total elongation of at least 6% or 10%.
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公开(公告)号：US07485196B2
公开(公告)日：2009-02-03
申请号：US11255604
申请日：2005-10-20
申请人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
IPC分类号： C22C38/00
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C21D8/0415 , C21D2211/004 , C22C38/02 , C22C38/04 , Y10T428/12993
摘要： A steel product with a high austenite grain coarsening temperature having less than 0.4% carbon, less than 0.06% aluminium, less than 0.01% titanium, less than 0.01% niobium, and less than 0.02% vanadium by weight, and having fine oxide particles containing silicon and iron distributed through the steel microstructure having an average particle size less than 50 nanometers and may be between 5 and 30 nanometers. The steel product may have fine oxide particles distributed through the microstructure capable of restricting ferrite recrystallisation for strain levels up to at least 10.0%, for temperatures up to 750° C. with holding times up to 20 minutes. The steel product may be made by continuous casting of steel strip introduced between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls.
摘要翻译： 具有低奥氏体晶粒粗化温度的钢产品，具有小于0.4％的碳，小于0.06％的铝，小于0.01％的钛，小于0.01％的铌和小于0.02％的钒，并且具有含有 硅和铁通过平均粒度小于50纳米的钢微结构分布，并且可以在5和30纳米之间。 钢制品可以具有通过微结构分布的细小氧化物颗粒，其能够限制铁素体再结晶，对于高达750℃的温度，至多达到10.0％的应变水平，保持时间长达20分钟。 钢产品可以通过在铸辊之间引入的钢带的连续铸造来制造，以形成总氧含量通常低于250ppm，游离氧含量20和60的熔融碳钢的铸造池 ppm，反转铸辊。
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公开(公告)号：US08002908B2
公开(公告)日：2011-08-23
申请号：US12363896
申请日：2009-02-02
申请人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C21D8/0415 , C21D2211/004 , C22C38/02 , C22C38/04 , Y10T428/12993
摘要： A steel product with a high austenite grain coarsening temperature having less than 0.4% carbon, less than 0.06% aluminium, less than 0.01% titanium, less than 0.01% niobium, and less than 0.02% vanadium by weight, and having fine oxide particles containing silicon and iron distributed through the steel microstructure having an average particle size less than 50 nanometers and may be between 5 and 30 nanometers. The steel product may have fine oxide particles distributed through the microstructure capable of restricting ferrite recrystallization for strain levels up to at least 10.0%, for temperatures up to 750° C. with holding times up to 20 minutes. The steel product may be made by continuous casting of steel strip introduced between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls.
摘要翻译： 具有低奥氏体晶粒粗化温度的钢产品，具有小于0.4％的碳，小于0.06％的铝，小于0.01％的钛，小于0.01％的铌和小于0.02％的钒，并且具有含有 硅和铁通过平均粒度小于50纳米的钢微结构分布，并且可以在5和30纳米之间。 钢制品可以具有通过微结构分布的细小氧化物颗粒，其能够限制铁素体再结晶，对于至多10.0％的应变水平，对于高达750℃的温度，保持时间长达20分钟。 钢产品可以通过在铸辊之间引入的钢带的连续铸造来制造，以形成总氧含量通常低于250ppm，游离氧含量20和60的熔融碳钢的铸造池 ppm，反转铸辊。
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4.发明申请STEEL PRODUCT WITH A HIGH AUSTENITE GRAIN COARSENING TEMPERATURE, AND METHOD FOR MAKING THE SAME 有权具有高奥氏体颗粒冷却温度的钢产品及其制造方法公开(公告)号：US20090191425A1
公开(公告)日：2009-07-30
申请号：US12363896
申请日：2009-02-02
申请人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
发明人： Walter N. Blejde , Rama Ballav Mahapatra , James Geoffrey Williams , Frank Barbaro , Philip John Renwick , Harold Roland Kaul , Andrew Phillips , Christopher Ronald Killmore , Lazar Strezov
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C21D8/0415 , C21D2211/004 , C22C38/02 , C22C38/04 , Y10T428/12993
摘要： A steel product with a high austenite grain coarsening temperature having less than 0.4% carbon, less than 0.06% aluminium, less than 0.01% titanium, less than 0.01% niobium, and less than 0.02% vanadium by weight, and having fine oxide particles containing silicon and iron distributed through the steel microstructure having an average particle size less than 50 nanometers and may be between 5 and 30 nanometers. The steel product may have fine oxide particles distributed through the microstructure capable of restricting ferrite recrystallization for strain levels up to at least 10.0%, for temperatures up to 750° C. with holding times up to 20 minutes. The steel product may be made by continuous casting of steel strip introduced between the casting rolls to form a casting pool of molten carbon steel having a total oxygen content of at least 70 ppm usually less than 250 ppm, and a free oxygen content 20 and 60 ppm, counter rotating the casting rolls.
摘要翻译： 具有低奥氏体晶粒粗化温度的钢产品，具有小于0.4％的碳，小于0.06％的铝，小于0.01％的钛，小于0.01％的铌和小于0.02％的钒，并且具有含有 硅和铁通过平均粒度小于50纳米的钢微结构分布，并且可以在5和30纳米之间。 钢制品可以具有通过微结构分布的细小氧化物颗粒，其能够限制铁素体再结晶，对于至多10.0％的应变水平，对于高达750℃的温度，保持时间长达20分钟。 钢产品可以通过在铸辊之间引入的钢带的连续铸造来制造，以形成总氧含量通常低于250ppm，游离氧含量20和60的熔融碳钢的铸造池 ppm，反转铸辊。
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公开(公告)号：US09999918B2
公开(公告)日：2018-06-19
申请号：US13275405
申请日：2011-10-18
IPC分类号： B22D11/00 , B22D11/06 , B22D11/117 , C22C38/02 , C22C38/04
CPC分类号： B22D11/001 , B22D11/0622 , B22D11/117 , C22C38/02 , C22C38/04
摘要： A steel product having, by weight, less than 0.25% carbon, between 0.20 and 2.0% manganese, between 0.05 and 0.50% silicon, aluminum 0.008% or less by weight, and at least one element selected from the group consisting of titanium between about 0.01% and about 0.20%, niobium between about 0.01% and about 0.20%, molybdenum between about 0.05% and about 0.50%, and vanadium between about 0.01% and about 0.20%, and having a microstructure comprised of a majority bainite, and fine oxide particles of silicon and iron distributed through the steel microstructure of average precipitate size less than 50 nanometers. The yield strength of the steel product may be at least 55 ksi (380 MPa) or the tensile strength of at least 500 MPa, or both. The steel product may have total elongation of at least 6% or 10%, and thickness less than 3.0 mm.
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公开(公告)号：US20110011834A1
公开(公告)日：2011-01-20
申请号：US12889799
申请日：2010-09-24
CPC分类号： C21D8/0226 , C21D8/10 , C21D8/105 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A method of producing coil plate on a hot strip mill is disclosed. The method includes coiling hot rolled coil plate strip at a temperature that is selected (a) to minimize precipitation of Cr/Mo carbides or (b) so that any Cr/Mo carbides that form are sufficiently fine that they go into solution in any subsequent heat treatment of coil plate made from the strip.
摘要翻译： 公开了一种在热轧机上生产线圈板的方法。 该方法包括在选择（a）以使Cr / Mo碳化物的沉淀最小化的温度下卷绕热轧卷材板条，或（b）使得形成的任何Cr / Mo碳化物足够细，使得它们随后进入溶液 从带材制成的线圈板的热处理。
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公开(公告)号：US09487841B2
公开(公告)日：2016-11-08
申请号：US12889799
申请日：2010-09-24
CPC分类号： C21D8/0226 , C21D8/10 , C21D8/105 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A method of producing coil plate on a hot strip mill is disclosed. The method includes coiling hot rolled coil plate strip at a temperature that is selected (a) to minimize precipitation of Cr/Mo carbides or (b) so that any Cr/Mo carbides that form are sufficiently fine that they go into solution in any subsequent heat treatment of coil plate made from the strip.
摘要翻译： 公开了一种在热轧机上生产线圈板的方法。 该方法包括在选择（a）以使Cr / Mo碳化物的沉淀最小化的温度下卷绕热轧卷材板条，或（b）使得形成的任何Cr / Mo碳化物足够细，使得它们随后进入溶液 从带材制成的线圈板的热处理。
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公开(公告)号：US20090104069A1
公开(公告)日：2009-04-23
申请号：US11816711
申请日：2006-02-21
CPC分类号： C21D8/0226 , C21D8/10 , C21D8/105 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/14
摘要： A method of producing coil plate on a hot strip mill is disclosed. The method includes coiling hot rolled coil plate strip at a temperature that is selected (a) to minimise precipitation of Cr/Mo carbides or (b) so that any Cr/Mo carbides that form are sufficiently fine that they go into solution in any subsequent heat treatment of coil plate made from the strip.
摘要翻译： 公开了一种在热轧机上生产线圈板的方法。 该方法包括在选择（a）以使Cr / Mo碳化物的沉淀最小化的温度下卷绕热轧卷材板条，或（b）使得形成的任何Cr / Mo碳化物足够细，使得它们随后进入溶液 从带材制成的线圈板的热处理。
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