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1. 发明授权

US08460485B2 Method of forming fine grains of Co-Cr-Mo alloy with nitrogen addition and Co-Cr-Mo alloy with nitrogen addition 有权
标题翻译：用氮添加和Co-Cr-Mo合金与氮添加形成Co-Cr-Mo合金细晶粒的方法
公开(公告)号：US08460485B2
公开(公告)日：2013-06-11
申请号：US13060593
申请日：2009-09-02
申请人： Shingo Kurosu , Akihiko Chiba , Hiroaki Matsumoto
发明人： Shingo Kurosu , Akihiko Chiba , Hiroaki Matsumoto
IPC分类号： C22F1/10
CPC分类号： C22C19/07 , A61F2/3094 , A61F2/38 , A61F2310/00029 , A61L27/045 , C21D2201/03 , C22F1/00 , C22F1/10
摘要： A Co—Cr—Mo alloy with nitrogen addition composed of 26 to 35% by weight of Cr, 2 to 8% by weight of Mo, 0.1 to 0.3% by weight of N, and balance of Co is subjected to solution treatment and then subjected to isothermal aging treatment holding the alloy at 670 to 830° C. for a predetermined period of time to form a multi-phase structure composed of an ε-phase and a Cr nitride by means of an isothermal aging effect. After cooling, the alloy subjected to reverse transformation treatment in which the alloy is heated at a temperature range of 870 to 1100° C. for reverse transformation to a single γ-phase from the multi-phase structure composed of an ε-phase and a Cr nitride.
摘要翻译：将由26〜35重量％的Cr，2〜8重量％的Mo，0.1〜0.3重量％的N和余量的Co组成的Co-Cr-Mo合金进行固溶处理，然后进行等温时效处理，将合金在670〜830℃保持规定时间，通过等温时效作用形成由ε相和Cr氮化物构成的多相结构体。冷却后，对合金进行逆相变处理，其中将合金在870〜1100℃的温度范围内加热，以便从由ε相和氮化铬。

2. 发明申请

US20110209799A1 METHOD OF FORMING FINE GRAINS OF CO-CR-MO ALLOY WITH NITROGEN ADDITION AND CO-CR-MO ALLOY WITH NITROGEN ADDITION 有权
标题翻译：用硝酸添加剂和CO-CR-MO合金形成具有硝酸添加剂的CO-CR-MO合金微粒的方法
公开(公告)号：US20110209799A1
公开(公告)日：2011-09-01
申请号：US13060593
申请日：2009-09-02
申请人： Shingo Kurosu , Akihiko Chiba , Hiroaki Matsumoto
发明人： Shingo Kurosu , Akihiko Chiba , Hiroaki Matsumoto
IPC分类号： C23C8/24
CPC分类号： C22C19/07 , A61F2/3094 , A61F2/38 , A61F2310/00029 , A61L27/045 , C21D2201/03 , C22F1/00 , C22F1/10
摘要： A Co—Cr—Mo alloy with nitrogen addition composed of 26 to 35% by weight of Cr, 2 to 8% by weight of Mo, 0.1 to 0.3% by weight of N, and balance of Co is subjected to solution treatment and then subjected to isothermal aging treatment holding the alloy at 670 to 830° C. for a predetermined period of time to form a multi-phase structure composed of an ε-phase and a Cr nitride by means of an isothermal aging effect. After cooling, the alloy subjected to reverse transformation treatment in which the alloy is heated at a temperature range of 870 to 1100° C. for reverse transformation to a single γ-phase from the multi-phase structure composed of an ε-phase and a Cr nitride.
摘要翻译：将由26〜35重量％的Cr，2〜8重量％的Mo，0.1〜0.3重量％的N和余量的Co组成的Co-Cr-Mo合金进行固溶处理，然后进行等温时效处理，将合金在670〜830℃保持一段时间，通过等温老化作用形成由相等和氮化铬组成的多相结构。冷却后，将合金进行逆相变处理，其中将合金在870〜1100℃的温度范围内进行加热，以从由相等相组成的多相结构反相转变成单个γ相，氮化铬。

3. 发明申请

US20080251163A1 Bio-Co-Cr-Mo Alloy With Ion Elution Suppressed by Structure Control, And Process For Producing Same 审中-公开
标题翻译：通过结构控制抑制离子洗脱的Bio-Co-Cr-Mo合金及其制备方法
公开(公告)号：US20080251163A1
公开(公告)日：2008-10-16
申请号：US11577715
申请日：2005-03-28
申请人： Akihiko Chiba , Shingo Kurosu , Naoyuki Nomura
发明人： Akihiko Chiba , Shingo Kurosu , Naoyuki Nomura
IPC分类号： A61L27/00 , C22C19/07 , C22C38/00
CPC分类号： C22F1/10 , A61F2/28 , A61F2/3094 , A61F2/32 , A61F2/38 , A61F2/3804 , A61F2/40 , A61F2/4202 , A61F2310/00029 , A61K6/0044 , A61K6/043 , A61K33/24 , A61L27/045 , A61L27/047 , C22C1/00 , C22C19/07 , A61K2300/00
摘要： This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co—Cr—Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium.
摘要翻译：本发明提供了一种生物毒性的技术，例如由Ni微量杂质衍生的过敏毒性，即镍毒性，其不可避免地存在于生物Co-Cr-Mo合金或不含Ni的不锈钢合金中，其特征在于因为从合金组合物中添加选自周期表第4,5和13族元素，特别是选自元素周期表第4族元素的元素的元素。添加元素优选为选自锆和钛，更优选锆的元素。

4. 发明申请

US20110023661A1 BIO-CO-CR-MO ALLOY WITH ION ELUTION SUPPRESSED BY STRUCTURE CONTROL, AND PROCESS FOR PRODUCING SAME 审中-公开
标题翻译：具有通过结构控制抑制的离子液体的BIO-CO-CR-MO合金及其生产方法
公开(公告)号：US20110023661A1
公开(公告)日：2011-02-03
申请号：US12891622
申请日：2010-09-27
申请人： Akihiko Chiba , Shingo Kurosu , Naoyuki Nomura
发明人： Akihiko Chiba , Shingo Kurosu , Naoyuki Nomura
IPC分类号： C21B15/00 , C22C1/02
CPC分类号： C22F1/10 , A61F2/28 , A61F2/3094 , A61F2/32 , A61F2/38 , A61F2/3804 , A61F2/40 , A61F2/4202 , A61F2310/00029 , A61K6/0044 , A61K6/043 , A61K33/24 , A61L27/045 , A61L27/047 , C22C1/00 , C22C19/07 , A61K2300/00
摘要： This invention provides a technique for rendering bio-toxicity such as allergy toxicity derived from Ni trace impurity, i.e., nickel toxicity, which is unavoidably present in a bio-Co—Cr—Mo alloy or an Ni-free stainless steel alloy unharmful, characterized in that an element selected from the group consisting of the group 4, 5 and 13 elements of the periodic table, particularly an element selected from the group consisting of the group 4 elements of the periodic table, is added to the alloy composition. The additive element is preferably an element selected from the group consisting of zirconium and titanium, more preferably zirconium.
摘要翻译：本发明提供了一种生物毒性的技术，例如由Ni微量杂质衍生的过敏毒性，即镍毒性，其不可避免地存在于生物Co-Cr-Mo合金或不含Ni的不锈钢合金中，其特征在于因为从合金组合物中添加选自周期表第4,5和13族元素，特别是选自元素周期表第4族元素的元素的元素。添加元素优选为选自锆和钛，更优选锆的元素。

5. 发明申请

US20130284325A1 NANOCRYSTAL-CONTAINING TITANIUM ALLOY AND PRODUCTION METHOD THEREFOR 有权
标题翻译：含纳米钛合金及其生产方法
公开(公告)号：US20130284325A1
公开(公告)日：2013-10-31
申请号：US13988123
申请日：2011-11-22
申请人： Sang-Hak Lee , Yoshiki Ono , Hiroaki Matsumoto , Akihiko Chiba
发明人： Sang-Hak Lee , Yoshiki Ono , Hiroaki Matsumoto , Akihiko Chiba
IPC分类号： C22F1/18 , C22C14/00
CPC分类号： C22F1/183 , C22C14/00 , C22F1/00
摘要： An alloy having an α′ martensite which is a processing starting structure is hot worked. The alloy is heated at a temperature increase rate of 50 to 800° C./sec, and strain is given at not less than 0.5 by a processing strain rate of from 0.01 to 10/sec in a case of a temperature range of 700 to 800° C., or by a processing strain rate of 0.1 to 10/sec in a case of a temperature range of 800° C. to 1000° C. By generating equiaxial crystals having average crystal particle diameters of less than 1000 nm through the above processes, a titanium alloy having high strength and high fatigue resistant property can be obtained, in which hardness is less than 400 HV, tensile strength is not less than 1200 MPa, and static strength and dynamic strength are superior.
摘要翻译：具有作为加工起始结构的α'马氏体的合金被热加工。以50〜800℃/秒的升温速度加热合金，在700〜700℃的温度范围内，通过0.01〜10 /秒的加工变形速度，使应变为0.5以上 800℃，或者在800〜1000℃的温度范围内，通过加工应变速度为0.1〜10 /秒。通过生成平均结晶粒径小于1000nm的等轴晶体，通过可以得到硬度小于400HV，拉伸强度不小于1200MPa，静态强度和动态强度优异的高强度，高耐疲劳性的钛合金。

6. 发明授权

US09260773B2 Nanocrystal titanium alloy and production method for same 有权
标题翻译：纳米晶钛合金及其制作方法相同
公开(公告)号：US09260773B2
公开(公告)日：2016-02-16
申请号：US13496750
申请日：2010-09-22
申请人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
发明人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
IPC分类号： C22C14/00 , C22F1/18 , C22F1/00 , C22C1/02 , C22C16/00
CPC分类号： C22F1/183 , C22C1/02 , C22C14/00 , C22F1/00
摘要： A titanium alloy has high strength and superior workability and is preferably used for various structural materials for automobiles, etc. The titanium alloy is obtained by the following production method. An alloy having a structure of α′ martensite phase is hot worked at conditions at which dynamic recrystallization occurs. The working is performed at a heating rate of 50 to 800° C./second at a strain rate of 0.01 to 10/second when the temperature is 700 to 800° C. or at a strain rate of 0.1 to 10/second when the temperature is more than 800° C. and less than 1000° C. so as to provide a strain of not less than 0.5. Thus, equiaxed crystals with an average grain size of less than 1000 nm are obtained.
摘要翻译：钛合金的强度高，加工性优异，优选用于汽车等的各种结构材料。钛合金通过以下的制造方法得到。具有α'马氏体相结构的合金在发生动态再结晶的条件下热加工。当温度为700至800℃时，以0.1至10 /秒的应变速率，以0.1至10 /秒的应变速率，以50至800℃/秒的加热速率进行加工，应变速率为0.01至10 /秒温度超过800℃且小于1000℃，以提供不小于0.5的应变。因此，得到平均粒径小于1000nm的等轴晶体。

7. 发明授权

US09624565B2 Nanocrystal-containing titanium alloy and production method therefor 有权
公开(公告)号：US09624565B2
公开(公告)日：2017-04-18
申请号：US13988123
申请日：2011-11-22
申请人： Sang-Hak Lee , Yoshiki Ono , Hiroaki Matsumoto , Akihiko Chiba
发明人： Sang-Hak Lee , Yoshiki Ono , Hiroaki Matsumoto , Akihiko Chiba
IPC分类号： C22F1/18 , C22F1/00 , C22C14/00
CPC分类号： C22F1/183 , C22C14/00 , C22F1/00
摘要： An alloy having an α′ martensite which is a processing starting structure is hot worked. The alloy is heated at a temperature increase rate of 50 to 800° C./sec, and strain is given at not less than 0.5 by a processing strain rate of from 0.01 to 10/sec in a case of a temperature range of 700 to 800° C., or by a processing strain rate of 0.1 to 10/sec in a case of a temperature range of 800° C. to 1000° C. By generating equiaxial crystals having average crystal particle diameters of less than 1000 nm through the above processes, a titanium alloy having high strength and high fatigue resistant property can be obtained, in which hardness is less than 400 HV, tensile strength is not less than 1200 MPa, and static strength and dynamic strength are superior.

8. 发明申请

US20120168042A1 NANOCRYSTAL TITANIUM ALLOY AND PRODUCTION METHOD FOR SAME 有权
标题翻译：纳米钛合金及其制造方法
公开(公告)号：US20120168042A1
公开(公告)日：2012-07-05
申请号：US13496750
申请日：2010-09-22
申请人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
发明人： Sang-Hak Lee , Yoshiki Ono , Kazuya Ikai , Hiroaki Matsumoto , Akihiko Chiba
IPC分类号： C22F1/16 , C22C14/00
CPC分类号： C22F1/183 , C22C1/02 , C22C14/00 , C22F1/00
摘要： A titanium alloy has high strength and superior workability and is preferably used for various structural materials for automobiles, etc. The titanium alloy is obtained by the following production method. An alloy having a structure of α′ martensite phase is hot worked at conditions at which dynamic recrystallization occurs. The working is performed at a heating rate of 50 to 800° C./second at a strain rate of 0.01 to 10/second when the temperature is 700 to 800° C. or at a strain rate of 0.1 to 10/second when the temperature is more than 800° C. and less than 1000° C. so as to provide a strain of not less than 0.5. Thus, equiaxed crystals with an average grain size of less than 1000 nm are obtained.
摘要翻译：钛合金的强度高，加工性优异，优选用于汽车等的各种结构材料。钛合金通过以下的制造方法得到。具有α'马氏体相结构的合金在发生动态再结晶的条件下热加工。当温度为700至800℃时，以0.1至10 /秒的应变速率，以0.1至10 /秒的应变速率，以50至800℃/秒的加热速率进行加工，应变速率为0.01至10 /秒温度超过800℃且小于1000℃，以提供不小于0.5的应变。因此，得到平均粒径小于1000nm的等轴晶体。

9. 发明授权

US10808306B2 Method of producing Co—Ni-based alloy 有权
公开(公告)号：US10808306B2
公开(公告)日：2020-10-20
申请号：US14966817
申请日：2015-12-11
申请人： Akihiko Chiba , Takuma Otomo , Yasunori Akasaka , Tomoo Kobayashi , Ryo Sugawara
发明人： Akihiko Chiba , Takuma Otomo , Yasunori Akasaka , Tomoo Kobayashi , Ryo Sugawara
IPC分类号： C22F1/10 , C22F1/16 , C22C19/05 , C22C19/07 , C22C30/00 , C22C1/02 , C22C19/00 , H01F1/147 , C22C19/03 , B22D7/00 , C21D1/26
摘要： Provided is a Co—Ni-based alloy in which a crystal is easily controlled, a method of controlling a crystal of a Co—Ni-based alloy, a method of producing a Co—Ni-based alloy, and a Co—Ni-based alloy having controlled crystallinity. The Co—Ni-based alloy includes Co, Ni, Cr, and Mo, in which the Co—Ni-based alloy has a crystal texture in which a Goss orientation is a main orientation. The Co—Ni-based alloy preferably has a composition including, in terms of mass ratio: 28 to 42% of Co, 10 to 27% of Cr, 3 to 12% of Mo, 15 to 40% of Ni, 0.1 to 1% of Ti, 1.5% or less of Mn, 0.1 to 26% of Fe, 0.1% or less of C, and an inevitable impurity; and at least one kind selected from the group consisting of 3% or less of Nb, 5% or less of W, 0.5% or less of Al, 0.1% or less of Zr, and 0.01% or less of B.

10. 发明申请

US20080195214A1 Co-Cr-Mo Alloy for Artificial Joint Having Excellent Wear Resistance 审中-公开
标题翻译：用于具有优异耐磨性的人造接头的Co-Cr-Mo合金
公开(公告)号：US20080195214A1
公开(公告)日：2008-08-14
申请号：US11909979
申请日：2005-03-28
申请人： Akihiko Chiba , Kazushige Kumagai , Naoyuki Nomura
发明人： Akihiko Chiba , Kazushige Kumagai , Naoyuki Nomura
IPC分类号： A61F2/30 , C22C19/07 , B22F3/11 , C22C1/04
CPC分类号： C22C19/07 , A61L27/045
摘要： In the field of biocompatible Co—Cr—Mo alloys for use in artificial joints or the like, the formation of wear debris in a living body is a matter of concern. The purpose of the invention is to provide a technique for improving the wear resistance of a Co—Cr—Mo alloy for use in an artificial joint to thereby prevent the formation of wear debris in a living body. The improvement in wear resistance of a Co—Cr—Mo alloy for use in an artificial joint can be achieved by finely dividing the crystal particles of the alloy, by preparing an alloy composition having a higher Mo content than any known standard Co—Cr—Mo alloy (e.g., Co-29Cr-6Mo alloy), by increasing the proportion of the σ phase that is dispersedly precipitated, by sintering an alloy powder produced by gas atomization technique to form pores on the surface of the alloy material, or the like. The Co—Cr—Mo alloy having high wear resistance is applicable to medical devices including artificial hip joints, artificial knee joints and the like which have less biotoxicity, namely which are safer and have a longer useful life.
摘要翻译：在用于人造关节等的生物相容性Co-Cr-Mo合金领域中，生物体中磨损碎屑的形成是令人担忧的问题。本发明的目的是提供一种用于改善用于人造接头的Co-Cr-Mo合金的耐磨性从而防止在生物体中形成磨损碎屑的技术。用于人造接头的Co-Cr-Mo合金的耐磨性的改善可以通过将合金的结晶颗粒细分，通过制备具有比任何已知的标准Co-Cr- Mo合金（例如Co-29Cr-6 Mo合金），通过烧结由气体雾化技术产生的合金粉末，在合金材料的表面上形成孔隙，通过增加分散析出的σ相的比例，或类似。具有高耐磨性的Co-Cr-Mo合金可应用于生物毒性小的人造髋关节，人造膝关节等医疗装置，即更安全，使用寿命更长的医疗装置。

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