公开(公告)号：US08876986B2

公开(公告)日：2014-11-04

申请号：US13257639

申请日：2009-10-01

申请人： Hideo Hata ,  Toshio Murakami ,  Akira Ibano ,  Fumio Yuse ,  Junichiro Kinugasa

发明人： Hideo Hata ,  Toshio Murakami ,  Akira Ibano ,  Fumio Yuse ,  Junichiro Kinugasa

IPC分类号： C22C38/00 ,  C22C38/08 ,  C22C38/16 ,  C22C38/02 ,  C22C38/06 ,  C22C38/04 ,  C22C38/14 ,  C21D6/00 ,  C21D9/46 ,  C22C38/12

CPC分类号： C21D9/46 ,  C21D6/008 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  Y10T428/12229

摘要： Disclosed is a high-strength cold-rolled steel sheet having improved stretch-flange formability and excellent hydrogen embrittlement resistance. In addition to Fe, C, Si, Mn, P, S, N, and Al, the steel sheet contains V or at least one element of Nb, Ti and Zr. The contents of the at least one element of Nb, Ti and Zr, if present, satisfy the expression of [% C]−[% Nb]/92.9×12−[% Ti]/47.9×12−[% Zr]/91.2×12>0.03. The steel sheet has an area ratio of tempered martensite of 50% or more with ferrite as the remainder. The number of precipitates having a circle-equivalent diameter of 1 to 10 nm is 20 particles or more per 1 μm2 of the tempered martensite. The number of precipitates containing V or the at least one element of Nb, Ti and Zr and having a circle-equivalent diameter of 20 nm or more is 10 particles or less per 1 μm2 of the tempered martensite.

摘要翻译： 公开了一种具有改善的拉伸凸缘成形性和优异的耐氢脆性的高强度冷轧钢板。 除了Fe，C，Si，Mn，P，S，N和Al之外，钢板含有V或Nb，Ti和Zr中的至少一种元素。 如果存在Nb，Ti和Zr的至少一种元素的含量满足[％C] - [％Nb] /92.9×12 - [％Ti] / 47.9×12 - [％Zr] / 91.2×12> 0.03。 钢板的回火马氏体的面积比为50％以上，其余为铁素体。 圆当量直径为1〜10nm的析出物的数量为每1μm2的回火马氏体为20个以上。 包含V或Nb，Ti和Zr的至少一种元素的圆当量直径为20nm以上的析出物的数量为每1μm2的回火马氏体为10个以下。

公开(公告)号：US20090238713A1

公开(公告)日：2009-09-24

申请号：US12159400

申请日：2006-12-28

申请人： Junichiro Kinugasa ,  Fumio Yuse ,  Yoichi Mukai ,  Shinji Kozuma ,  Hiroshi Akamizu ,  Kouji Kasuya ,  Muneaki Ikeda ,  Koichi Sugimoto

发明人： Junichiro Kinugasa ,  Fumio Yuse ,  Yoichi Mukai ,  Shinji Kozuma ,  Hiroshi Akamizu ,  Kouji Kasuya ,  Muneaki Ikeda ,  Koichi Sugimoto

IPC分类号： C22C38/00 ,  C22C38/42 ,  C22C38/22 ,  C22C38/18 ,  C22C38/20 ,  C22C38/40 ,  C22C38/04

CPC分类号： C21D9/48 ,  C21D1/20 ,  C21D2211/001 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/005 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/32 ,  C22C38/34 ,  C22C38/38 ,  C22C38/42 ,  C22C38/44 ,  C22C38/46 ,  C22C38/50

摘要： The invention relates to an ultrahigh-strength thin steel sheet excellent in the hydrogen embrittlement resistance, the steel sheet including, by weight %, 0.10 to 0.60% of C, 1.0 to 3.0% of Si, 1.0 to 3.5% of Mn, 0.15% or less of P, 0.02% or less of S, 1.5% or less of Al, 0.003 to 2.0% of Cr, and a balance including iron and inevitable impurities; in which grains of residual austenite have an average axis ratio (major axis/minor axis) of 5 or more, the grains of the residual austenite have an average minor axis length of 1 μm or less, and the grains of the residual austenite have a nearest-neighbor distance between the grains of 1 μm or less.

摘要翻译： 本发明涉及耐氢脆性优异的超高强度薄钢板，该钢板以重量％计，C：0.10〜0.60％，Si：1.0〜3.0％，Mn：1.0〜3.5％，Mn：0.15％ 以下的P，0.02％以下的S，1.5％以下的Al，0.003〜2.0％的Cr，余量包括铁和不可避免的杂质; 其中残余奥氏体的晶粒的平均轴比（长轴/短轴）为5以上，残留奥氏体的平均短轴长度为1μm以下，残留奥氏体的晶粒为 1个或更少的颗粒之间的最邻近距离。

公开(公告)号：US20100006184A1

公开(公告)日：2010-01-14

申请号：US12484553

申请日：2009-06-15

申请人： Mikako Takeda ,  Fumio Yuse ,  Shigenobu Namba ,  Kazutaka Kunii ,  Yoshihiro Miyake

发明人： Mikako Takeda ,  Fumio Yuse ,  Shigenobu Namba ,  Kazutaka Kunii ,  Yoshihiro Miyake

IPC分类号： C23C22/72 ,  C22C38/18 ,  C22C38/20 ,  C22C38/22

CPC分类号： C23C2/02 ,  C21D1/74 ,  C21D6/005 ,  C21D8/0278 ,  C21D8/0478 ,  C21D9/46 ,  C21D9/48 ,  C22C38/06 ,  C22C38/38 ,  C23C2/06

摘要： Disclosed is an alloyed hot-dip galvanized steel sheet containing 2.0 to 3.5 percent by mass of Mn. The steel sheet includes a base steel sheet and a galvanized zinc-coat layer thereon, in which MnO particles are present in an average number of 10 or less per micrometer on a straight line lying in an interface between the galvanized zinc-coat layer and the steel sheet, an Fe—Al—O alloy layer is present at the interface between the MnO particles and the steel sheet, and the length of the Fe—Al—O alloy layer is less than 10% of the overall length of the interface. The alloyed hot-dip galvanized steel sheet, even though having a high Mn content, is resistant to uneven alloying and excels in surface appearance, because the amounts of the MnO particles and the Fe—Al—O alloy layer that cause uneven alloying are controlled.

摘要翻译： 公开了含有2.0〜3.5质量％的Mn的合金化热浸镀锌钢板。 钢板包括基材钢板和镀锌锌涂层，其中MnO颗粒在平均数量为10或更小的每微米的直线上位于镀锌锌涂层和 钢板，MnO粒子与钢板之间的界面存在Fe-Al-O合金层，Fe-Al-O合金层的长度小于界面总长度的10％。 合金化的热浸镀锌钢板即使具有高Mn含量，耐受不均匀的合金化和表面外观的优异，因为控制了不均匀合金化的MnO颗粒和Fe-Al-O合金层的量 。

公开(公告)号：US20120132327A1

公开(公告)日：2012-05-31

申请号：US13375132

申请日：2010-05-28

申请人： Yoichi Mukai ,  Kouji Kasuya ,  Michiharu Nakaya ,  Michitaka Tsunezawa ,  Fumio Yuse ,  Junichiro Kinugasa ,  Sandra Traint ,  Andreas Pichler

发明人： Yoichi Mukai ,  Kouji Kasuya ,  Michiharu Nakaya ,  Michitaka Tsunezawa ,  Fumio Yuse ,  Junichiro Kinugasa ,  Sandra Traint ,  Andreas Pichler

IPC分类号： C21D6/00 ,  C22C38/04 ,  C22C38/08 ,  C22C38/12 ,  C22C38/16 ,  C22C38/00 ,  C22C38/38

CPC分类号： C21D9/46 ,  C21D8/0205 ,  C21D8/0226 ,  C21D8/0236 ,  C21D8/0252 ,  C21D2211/002 ,  C21D2211/005 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C22C38/16 ,  C22C38/38

摘要： Disclosed is a high strength steel sheet having excellent hydrogen embrittlement resistance. The steel sheet has a tensile strength of 1180 MPa or more, and satisfies the following conditions: with respect to an entire metallographic structure thereof, bainite, bainitic ferrite and tempered martensite account for 85 area % or more in total; retained austenite accounts for 1 area % or more; and fresh martensite accounts for 5 area % or less (including 0 area %).

摘要翻译： 公开了耐氢脆性优异的高强度钢板。 钢板的拉伸强度为1180MPa以上，满足以下条件：相对于其整个金相组织，贝氏体，贝氏体铁素体和回火马氏体总计占85面积％以上。 残余奥氏体占1面积％以上; 新鲜马氏体占5面积％以下（含0面积％）。

公开(公告)号：US20120009434A1

公开(公告)日：2012-01-12

申请号：US13257639

申请日：2009-10-01

申请人： Hideo Hata ,  Toshio Murakami ,  Akira Ibano ,  Fumio Yuse ,  Junichiro Kinugasa

发明人： Hideo Hata ,  Toshio Murakami ,  Akira Ibano ,  Fumio Yuse ,  Junichiro Kinugasa

IPC分类号： B21C1/00

CPC分类号： C21D9/46 ,  C21D6/008 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  Y10T428/12229

摘要： Disclosed is a high-strength cold-rolled steel sheet which has improved stretch-flange formability while keeping excellent hydrogen embrittlement resistance. The cold-rolled steel sheet comprises 0.03 to 0.30% by mass of C, 3.0% by mass or less (including 0% by mass) of Si, more than 0.1% by mass and not more than 2.8% by mass of Mn, 0.1% by mass or less of P, 0.005% by mass or less of S, 0.01% by mass or less of N, and 0.01 to 0.50% by mass of Al. The cold-rolled steel sheet additionally comprises V in an amount of 0.001 to 1.00% by mass or one or more elements selected from Nb, Ti and Zr in the total amount of 0.01% by mass or more, with the remainder being made up by iron and unavoidable impurities, wherein the contents of one or more elements selected from Nb, Ti and Zr fulfils the requirement represented by the following formula: [% C]−[% Nb]/92.9×12−[% Ti]/47.9×12−[% Zr]/91.2×12>0.03. In the cold-rolled steel sheet, the area ratio of tempered martensite is 50% or more (including 100%), and ferrite makes up the remainder. In the cold-rolled steel sheet, the distribution of precipitates in the tempered martensite is as follows: the number of precipitates each having a circle-equivalent diameter of 1 to 10 nm is 20 particles or more per 1 μm2 of the tempered martensite and the number of precipitates each containing V or at least one element selected from Nb, Ti and Zr and each having a circle-equivalent diameter of 20 nm or more is 10 particles or less per 1 μm2 of the tempered martensite.

摘要翻译： 公开了一种在保持优异的耐氢脆性的同时具有改进的拉伸凸缘成形性的高强度冷轧钢板。 该冷轧钢板包含C：0.03〜0.30质量％，Si：3.0质量％以下（含有0质量％）的Si，0.1质量％以上且2.8质量％以下的Mn，0.1 以质量％以下的P，0.005质量％以下的S，0.01质量％以下的N和0.01〜0.50质量％的Al。 冷轧钢板另外包含0.001〜1.00质量％的V或者选自Nb，Ti和Zr中的一种以上的元素，总量为0.01质量％以上，余量由 铁和不可避免的杂质，其中选自Nb，Ti和Zr中的一种或多种元素的含量满足下式所示的要求：[％C] - [％Nb] /92.9×12- [％Ti] /47.9× 12- [％Zr] /91.2×12> 0.03。 在冷轧钢板中，回火马氏体的面积比为50％以上（包括100％），铁素体构成剩余部分。 在冷轧钢板中，回火马氏体中析出物的分布如下：圆形当量直径为1〜10nm的析出物的个数为每1μm2回火马氏体为20个以上， 每个含有V的析出物数量或选自Nb，Ti和Zr中的至少一种元素，每个圆当量直径为20nm以上的析出物的数量为每1μm2的回火马氏体为10个以下。

公开(公告)号：US20060169366A1

公开(公告)日：2006-08-03

申请号：US11340472

申请日：2006-01-27

申请人： Fumio Yuse ,  Kenji Saito ,  Shushi Ikeda ,  Koichi Sugimoto

发明人： Fumio Yuse ,  Kenji Saito ,  Shushi Ikeda ,  Koichi Sugimoto

IPC分类号： C22C38/00

CPC分类号： C22C38/02 ,  C21D6/005 ,  C21D6/008 ,  C21D2211/002 ,  C22C38/04

摘要： The present invention provides a high strength bolt that has excellent hydrogen embrittlement resistance. The high strength bolt having excellent hydrogen embrittlement resistance which bolt comprises 0.20 to 0.60% of C, 1.0 to 3.0% of Si, 1.0 to 3.5% of Mn, higher than 0% and not higher than 1.5% of Al, 0.15% or less P, 0.02% or less S, and balance of iron and inevitable impurities, and the structure includes: 1% or more residual austenite; 80% or more in total content of bainitic ferrite and martensite; and 10% or less (may be 0%) in total content of ferrite and pearlite in the proportion of area to the entire structure, and also the mean axis ratio (major axis/minor axis) of the residual austenite grains is 5 or higher and the bolt has tensile strength of 1180 MPa or higher.

摘要翻译： 本发明提供耐氢脆性优异的高强度螺栓。 具有优异的耐氢脆性的高强度螺栓包括C：0.20〜0.60％，Si：1.0〜3.0％，Mn：1.0〜3.5％，Al：1.5％以上，0.15％以下 P，0.02％以下S，余量为铁和不可避免的杂质，其结构包括：1％以上残余奥氏体; 贝氏体铁素体和马氏体总含量为80％以上; 和铁素体和珠光体的总含量相对于整个结构的面积的比例为10％以下（可以为0％），残余奥氏体晶粒的平均轴比（长轴/短轴）为5以上 螺栓的拉伸强度为1180MPa以上。

公开(公告)号：US06218027B1

公开(公告)日：2001-04-17

申请号：US09384340

申请日：1999-08-27

申请人： Fumio Yuse ,  Takenori Nakayama ,  Toshiaki Kan

发明人： Fumio Yuse ,  Takenori Nakayama ,  Toshiaki Kan

IPC分类号： B32B700

CPC分类号： C23F15/00 ,  C23C8/10 ,  C23C22/68 ,  C23C26/00 ,  C23C30/00 ,  Y10T428/12444 ,  Y10T428/12479 ,  Y10T428/12583 ,  Y10T428/1259 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/12667 ,  Y10T428/12972

摘要： A steel suitable for a fabric with or without painting and has good corrosion resistance with reproducibility, even if the steel is composed mainly of ordinary carbon steel or low alloy steel, wherein the surface of the steel is coated with rust comprising one or more selected from Ti, Nb, Ta, Zr, V and Hf in the total amount of 0.01 wt % or more. In the steel, the fraction of &agr;-FeOOH and an amorphous rust is 35 wt % or more, and the fraction of &bgr;-FeOOH is 20 wt % or less.

摘要翻译： 一种适用于具有或不具有喷涂的织物的钢，并且即使钢主要由普通碳钢或低合金钢组成，具有良好的耐腐蚀性和再现性，其中钢的表面涂覆有包含一种或多种选自 Ti，Nb，Ta，Zr，V和Hf，总量为0.01重量％以上。 在钢中，α-FeO​​OH和无定形锈的分数为35重量％以上，β-FeOOH的分数为20重量％以下。

公开(公告)号：US08673093B2

公开(公告)日：2014-03-18

申请号：US12513514

申请日：2007-12-10

申请人： Muneaki Ikeda ,  Kouji Kasuya ,  Yoichi Mukai ,  Fumio Yuse ,  Junichiro Kinugasa

发明人： Muneaki Ikeda ,  Kouji Kasuya ,  Yoichi Mukai ,  Fumio Yuse ,  Junichiro Kinugasa

IPC分类号： C22C38/14 ,  C22C38/02 ,  C22C38/04 ,  C21D9/00

CPC分类号： C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14

摘要： The present invention is the thin steel sheet containing C, Si, Mn, P, S, Al, Mo, Ti, B, and N wherein a value Z calculated by the equation described below is 2.0-6.0, an area ratio against all the structure is 1% or above for retained austenite and 80% or above for total of bainitic ferrite and martensite, a mean axis ratio of the retained austenite crystal grain is 5 or above, and tensile strength is 980 MPa or above where Value Z=9×[C]+[Mn]+3×[Mo]+490×[B]+7×[Mo]/{100×([B]+0.001),and the thin steel sheet has 980 MPa or above tensile strength and enhanced hydrogen embrittlement resistance properties.

摘要翻译： 本发明是含有C，Si，Mn，P，S，Al，Mo，Ti，B和N的薄钢板，其中由下述等式计算的值Z为2.0-6.0， 残留奥氏体的结构为1％以上，贝氏体铁素体和马氏体的总和为80％以上，残留奥氏体晶粒的平均轴比为5以上，拉伸强度为980MPa以上，其中，Z = 9 ×[C] + [Mn] + 3×[Mo] + 490×[B] +7×[Mo] / {100×（[B] +0.001）），薄钢板的拉伸强度 并提高耐氢脆性。

公开(公告)号：US20110212337A1

公开(公告)日：2011-09-01

申请号：US13128194

申请日：2009-11-02

申请人： Fumio Yuse ,  Mikako Takeda ,  Shigenobu Namba ,  Yoshihiro Miyake

发明人： Fumio Yuse ,  Mikako Takeda ,  Shigenobu Namba ,  Yoshihiro Miyake

IPC分类号： B32B15/01 ,  B05D1/18 ,  B05D3/12

CPC分类号： C23C2/06 ,  C21D6/005 ,  C21D8/0205 ,  C21D9/46 ,  C21D2211/001 ,  C21D2211/005 ,  C21D2211/008 ,  C22C38/06 ,  C22C38/42 ,  C22C38/50 ,  C22C38/58 ,  C23C2/28

摘要： Disclosed is a galvannealed steel sheet having an excellent surface appearance, wherein plating failure and non-uniform alloying are suppressed. Also disclosed is a method for producing such a galvannealed steel sheet. The galvannealed steel sheet is obtained by hot-dip galvanizing a base steel, and then alloying the plating layer. The base steel is obtained by hot rolling a steel which contains 0.02-0.25 mass % of C, 0.5-3 mass % of Si, 1-4 mass % of Mn, 0.03-1 mass % of Cr, not more than 1.5 mass % of Al (excluding 0 mass %), not more than 0.03 mass % of P (excluding 0 mass %), not more than 0.03 mass % of S (excluding 0 mass %) and 0.003-1 mass % Ti, and additionally contains 0.25-5.0 mass % of Cu and 0.05-1.0 mass % of Ni, while satisfying formula (1), with the balance being made up of iron and unavoidable impurities. [Cu]/[Ni]≧5 In formula (1), [ ] represents the content (mass %) of each element.

摘要翻译： 公开了一种具有优异表面外观的合金化热浸镀锌钢板，其中电镀失效和非均匀合金化被抑制。 还公开了这种合金化热浸镀锌钢板的制造方法。 合金化热浸镀锌钢板是通过对基体钢进行热浸镀锌，然后使镀层合金化得到的。 基础钢通过热轧钢，其含有C：0.02〜0.25质量％，Si：0.5〜3质量％，Mn：1-4质量％，Cr：0.03〜0.1质量％，Cr：1.5质量％ 的Al（不包括0质量％），不大于0.03质量％的P（不包括0质量％），不大于0.03质量％的S（不包括0质量％）和0.003-1质量％Ti，另外含有0.25 Cu的-5.0质量％和Ni的0.05〜1.0质量％，同时满足式（1），余量由铁和不可避免的杂质构成。 [Cu] / [Ni]≥5在式（1）中，[]表示各元素的含量（质量％）。

公开(公告)号：US20100080728A1

公开(公告)日：2010-04-01

申请号：US12513514

申请日：2007-12-10

申请人： Muneaki Ikeda ,  Kouji Kasuya ,  Yoichi Mukai ,  Fumio Yuse ,  Junichiro Kinugasa

发明人： Muneaki Ikeda ,  Kouji Kasuya ,  Yoichi Mukai ,  Fumio Yuse ,  Junichiro Kinugasa

IPC分类号： C22C38/42 ,  C22C38/16 ,  C22C38/08 ,  C22C38/04 ,  C22C38/18 ,  C22C38/14 ,  B21B1/26

CPC分类号： C21D9/46 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/14

摘要： The present invention is the thin steel sheet containing C, Si, Mn, P, S, Al, Mo, Ti, B, and N wherein a value Z calculated by the equation described below is 2.0-6.0, an area ratio against all the structure is 1% or above for retained austenite and 80% or above for total of bainitic ferrite and martensite, a mean axis ratio of the retained austenite crystal grain is 5 or above, and tensile strength is 980 MPa or above. Value Z=9×[C]+[Mn]+3×[Mo]+490×[B]+7×[Mo]/{100×([B]+0.001)} Thus a high strength thin steel sheet with 980 MPa or above tensile strength and enhanced hydrogen embrittlement resistance properties can be provided. Also, in accordance with the present invention, the hot-rolled steel sheet for cold-rolling capable of manufacturing the high strength thin steel sheet with good productivity and having improved cold-rollability can be provided.

摘要翻译： 本发明是含有C，Si，Mn，P，S，Al，Mo，Ti，B和N的薄钢板，其中由下述等式计算的值Z为2.0-6.0， 残留奥氏体的结构为1％以上，贝氏体铁素体和马氏体的总和为80％以上，残留奥氏体晶粒的平均轴比为5以上，拉伸强度为980MPa以上。 值Z = 9×[C] + [Mn] + 3×[Mo] + 490×[B] + 7×[Mo] / {100×（[B] +0.001）}因此， 可以提供980MPa以上的拉伸强度和增强的耐氢脆性。 此外，根据本发明，可以提供能够以良好的生产率制造高强度薄钢板并具有改进的冷轧性能的用于冷轧的热轧钢板。