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    Pure titanium sheet excellent in balance between stamping formability and strength
    3.
    发明授权
    Pure titanium sheet excellent in balance between stamping formability and strength 有权
    纯钛板在冲压成型性和强度之间的平衡优异

    公开(公告)号：US09353432B2

    公开(公告)日：2016-05-31

    申请号：US13350057

    申请日：2012-01-13

    申请人： Akihisa Fujita ,  Yoshio Itsumi ,  Hideto Oyama ,  Takeshi Kudo ,  Shogo Murakami

    发明人： Akihisa Fujita ,  Yoshio Itsumi ,  Hideto Oyama ,  Takeshi Kudo ,  Shogo Murakami

    IPC分类号： C22F1/18 ,  C22C14/00 ,  F28F21/08

    CPC分类号： C22F1/183 ,  C22C14/00 ,  F28F21/086

    摘要： Disclosed is a pure titanium sheet having a strength corresponding to JIS Grade 2 level (215 MPa in terms of 0.2% yield strength) or more and having satisfactory stamping formability. The pure titanium sheet includes titanium and inevitable impurities, has a 0.2% yield strength of 215 MPa or more, has an average grain size d of its structure of 25 μm or more and 75 μm or less, and has a hexagonal crystal structure, in which respective grains in the hexagonal crystal structure have an average of Schmidt factors (SF) of (11-22) twins with a rolling direction as axes, and the average Schmidt factor (SF) and the average grain size d satisfy following Expression (1): 0.055≦[SF/√d]≦0.084  (1).

    摘要翻译： 公开了具有JIS等级2的强度（屈服强度为0.2％的215MPa）以上且具有令人满意的冲压成形性的纯钛片。 纯钛片包括钛和不可避免的杂质，其屈服强度的0.2％为215MPa以上，其结构的平均粒径d为25μm以上且75μm以下，具有六方晶系结构， 六方晶系结构中的各晶粒的平均Schmidt因子（SF）为（11-22）双轴，轧制方向为轴，平均施密特因子（SF）和平均晶粒尺寸d满足下述式（1 ）：0.055＆nlE; [SF /√d]＆nlE; 0.084（1）。

    PURE TITANIUM SHEET EXCELLENT IN BALANCE BETWEEN STAMPING FORMABILITY AND STRENGTH
    4.
    发明申请
    PURE TITANIUM SHEET EXCELLENT IN BALANCE BETWEEN STAMPING FORMABILITY AND STRENGTH 有权
    纯钛片与冲压强度之间的平衡优良

    公开(公告)号：US20120193084A1

    公开(公告)日：2012-08-02

    申请号：US13350057

    申请日：2012-01-13

    申请人： Akihisa FUJITA ,  Yoshio Itsumi ,  Hideto Oyama ,  Takeshi Kudo ,  Shogo Murakami

    发明人： Akihisa FUJITA ,  Yoshio Itsumi ,  Hideto Oyama ,  Takeshi Kudo ,  Shogo Murakami

    IPC分类号： F28F7/00 ,  C22C14/00

    CPC分类号： C22F1/183 ,  C22C14/00 ,  F28F21/086

    摘要： Disclosed is a pure titanium sheet having a strength corresponding to JIS Grade 2 level (215 MPa in terms of 0.2% yield strength) or more and having satisfactory stamping formability. The pure titanium sheet includes titanium and inevitable impurities, has a 0.2% yield strength of 215 MPa or more, has an average grain size d of its structure of 25 μm or more and 75 μm or less, and has a hexagonal crystal structure, in which respective grains in the hexagonal crystal structure have an average of Schmidt factors (SF) of (11-22) twins with a rolling direction as axes, and the average Schmidt factor (SF) and the average grain size d satisfy following Expression (1): 0.055≦[SF/√d]≦0.084  (1)

    摘要翻译： 公开了具有JIS等级2的强度（屈服强度为0.2％的215MPa）以上且具有令人满意的冲压成形性的纯钛片。 纯钛片包括钛和不可避免的杂质，其屈服强度的0.2％为215MPa以上，其结构的平均粒径d为25μm以上且75μm以下，具有六方晶系结构， 六方晶系结构中的各晶粒的平均Schmidt因子（SF）为（11-22）双轴，轧制方向为轴，平均施密特因子（SF）和平均晶粒尺寸d满足下式（1 ）：0.055＆nlE; [SF /√d]＆nlE; 0.084（1）

    Titanium alloy and production thereof
    7.
    发明授权
    Titanium alloy and production thereof 失效
    钛合金及其生产

    公开(公告)号：US06632304B2

    公开(公告)日：2003-10-14

    申请号：US09897964

    申请日：2001-07-05

    申请人： Hideto Oyama ,  Shinya Ishigai ,  Masamitsu Fujii ,  Tadasu Abumiya

    发明人： Hideto Oyama ,  Shinya Ishigai ,  Masamitsu Fujii ,  Tadasu Abumiya

    IPC分类号： C22D118

    CPC分类号： C22F1/183 ,  C22C14/00

    摘要： A near-&bgr; or &bgr; titanium alloy having high strength, high ductility, and high toughness which is capable of coil rolling at a high temperature and recoiling for high productivity, and a process for producing said titanium alloy. The titanium alloy contains not more than 1.0% (excluding 0%) of Si alone or in combination with not more than 10% of Sn. The process comprises heating a &bgr; alloy or near-&bgr; alloy containing not more than 1.0% (excluding 0%) of Si alone or in combination with not more than 10% of Sn and subjecting said alloy to plastic deformation while keeping silicides solved in it at a temperature above the &bgr;-transus, so that silicides precipitate in the form of fine particles, with recrystallization suppressed. The resulting titanium alloy is good in workability and has high strength after aging treatment.

    摘要翻译： 一种具有高强度，高延展性和高韧性的近β或β钛合金，以及能够高温卷取并高回弹的高韧性的钛或钛合金，以及制造所述钛合金的方法。 钛合金含有不超过1.0％（不含0％）的Si或不超过10％的Sn。 该方法包括加热含有不超过1.0％（不包括0％）的Si或不超过Sn的10％的β合金或近β合金，并使所述合金进行塑性变形，同时保持硅化物溶解 在β转子以上的温度下，使得硅化物以细颗粒的形式沉淀，抑制了重结晶。 所得钛合金的加工性良好，时效处理后的强度高

    α-β type titanium alloy
    9.
    发明授权
    α-β type titanium alloy 有权
    α-β型钛合金

    公开(公告)号：US06849231B2

    公开(公告)日：2005-02-01

    申请号：US10256709

    申请日：2002-09-30

    申请人： Soichiro Kojima ,  Hideto Oyama

    发明人： Soichiro Kojima ,  Hideto Oyama

    IPC分类号： C22C14/00 ,  C22F1/18

    CPC分类号： C22C14/00 ,  C22F1/183

    摘要： There is provided an α-β type titanium alloy having a normal-temperature strength equivalent to, or exceeding that of a Ti-6Al-4V alloy generally used as a high-strength titanium alloy, and excellent in hot workability including hot forgeability and subsequent secondary workability, and capable of being hot-worked into a desired shape at a low cost efficiently. There is disclosed an α-β type titanium alloy having high strength and excellent hot workability wherein 0.08-0.25% C is contained, the tensile strength at room temperature (25° C.) after annealing at 700° C. is 895 MPa or more, the flow stress upon greeble test at 850° C. is 200 MPa or less, and the tensile strength/flow stress ratio is 9 or more. A particularly preferred α-β type titanium alloy comprises 3-7% Al and 0.08-025% C as α-stabilizers, and 2.0-6.0% Cr and 0.3-1.0% Fe as β-stabilizers.

    摘要翻译： 提供了具有等于或超过通常用作高强度钛合金的Ti-6Al-4V合金的常温强度的α-β型钛合金，并且具有优异的热加工性，包括热锻性和随后的 二次加工性，并且能够以低成本有效地热加工成所需形状。 公开了具有高强度和优异的热加工性的α-β型钛合金，其中含有0.08-0.25％C，在700℃退火后的室温（25℃）下的拉伸强度为895MPa以上 在850℃的高温试验时的流动应力为200MPa以下，拉伸强度/流动应力比为9以上。 特别优选的α-β型钛合金包含3-7％Al和0.08-025％C作为α-稳定剂，和2.0-6.0％Cr和0.3-1.0％Fe作为β稳定剂。