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1. 发明授权

US07037390B2 Method of heat treatment for Ni-base alloy tube 有权
标题翻译：镍基合金管热处理方法
公开(公告)号：US07037390B2
公开(公告)日：2006-05-02
申请号：US10681117
申请日：2003-10-09
申请人： Osamu Miyahara , Toshihiro Imoto , Hiroyuki Anada , Kazuyuki Kitamura
发明人： Osamu Miyahara , Toshihiro Imoto , Hiroyuki Anada , Kazuyuki Kitamura
IPC分类号： C22C1/10
CPC分类号： C22C19/058 , C21D1/74 , C21D9/08 , C22F1/02 , C22F1/10 , C23C8/10 , C23C8/16
摘要： A method of heat treatment for an efficient forming of two-layered oxide film on the inside surface of a Ni-base alloy tube. The oxide film suppresses the Ni release in a high-temperature water environment.At least two gas supplying devices are provided on the outlet side of a continuous heat treatment furnace; or one gas supplying device is provided respectively on the outlet side and the inlet side thereof. The tube is put into the furnace while supplying an atmospheric gas into the tube from the front end of the tube moving direction with one of these gas supplying devices and a gas introducing pipe, which is arranged inside the furnace, and this tube is maintained at 650 to 1200° C. for 1 to 1200 minutes. The atmospheric gas consists of hydrogen or a mixture of hydrogen and argon, whose dew point is in a range of from −60° C. to +20° C. After the front end of the Ni-base alloy tube reaches the outlet side of the furnace, the supply of atmospheric gas into the tube is switched to the supply from other gas supplying device. The operations are repeated.
摘要翻译：一种用于在Ni基合金管的内表面上有效形成双层氧化膜的热处理方法。该氧化物膜在高温水环境中抑制Ni释放。在连续热处理炉的出口侧设置至少两个供气装置; 或者在其出口侧和入口侧分别设置一个气体供给装置。将管放入炉中，同时从管移动方向的前端向气体供给装置和气体导入管中的一个供给大气气体，并将该管保持在炉内 650〜1200℃1〜1200分钟。气氛气体由氢气或氢气和氩气的混合物组成，其露点在-60℃至+ 20℃的范围内。在Ni基合金管的前端到达出口侧炉子中，将大气气体供应到管中被切换到来自其他气体供应装置的供应。重复操作。

2. 发明授权

US06482528B2 Nickel-base alloy product and method of producing the same 有权
标题翻译：镍基合金制品及其制造方法
公开(公告)号：US06482528B2
公开(公告)日：2002-11-19
申请号：US10119085
申请日：2002-04-10
申请人： Hiroyuki Anada , Kazuyuki Kitamura , Toshihiro Imoto , Osamu Miyahara
发明人： Hiroyuki Anada , Kazuyuki Kitamura , Toshihiro Imoto , Osamu Miyahara
IPC分类号： C22C1905
CPC分类号： C23C28/044 , C23C8/10 , C23C8/80 , C23C28/048 , Y10T428/12618 , Y10T428/12944
摘要： (1) A nickel-base alloy product having, on the surface thereof, an oxide film comprising at least two layers, namely a first layer mainly composed of Cr2O3 and having a chromium content of not less than 50% relative to the total amount of metal elements and a second layer occurring outside the first layer and mainly composed of MnCr2O4, wherein the grain size of Cr2O3 crystals in the first layer is 50 to 1,000 nm and the total oxide film thickness is 180 to 1,500 nm. (2) A method of producing the nickel-base alloy product as specified above under (1) which comprises subjecting a nickel-base alloy product to oxide film formation treatment by maintaining the same at a temperature of 650 to 1,200° C. in a hydrogen atmosphere or hydrogen-argon mixed atmosphere showing a dew point of −60° C. to +20° C. for 1 to 1,200 minutes. The product mentioned above (1) allows only a very low level of Ni release in a high-temperature water environment over a long period of time and is particularly suited for use as a nuclear reactor member.
摘要翻译：（1）一种镍基合金制品，其表面上具有包含至少两层的氧化物膜，即主要由Cr 2 O 3组成的第一层，铬含量不低于50％金属元素和第二层，其主要由MnCr 2 O 4构成，其中第一层中的Cr 2 O 3晶体的晶粒尺寸为50〜1000nm，氧化膜的总厚度为180〜1500nm。（2）（1）所述的镍基合金制品的制造方法，其特征在于，在氢气氛中，在氢气氛中，在氢气氛中，在650〜1200℃的温度下，使镍基合金制品进行氧化膜形成处理，氩气混合气氛，露点为-60°C至+ 20°C，持续1〜1,200分钟。上述（1）所述的产品在高温水环境中仅允许非常低的Ni释放量很长一段时间，尤其适合用作核反应堆构件。

3. 发明授权

US08241439B2 Ni-Cr alloy material 有权
标题翻译： Ni-Cr合金材料
公开(公告)号：US08241439B2
公开(公告)日：2012-08-14
申请号：US12945978
申请日：2010-11-15
申请人： Manabu Kanzaki , Mitsuharu Yonemura , Masanari Kimoto , Shoji Kinomura , Toshihiro Imoto
发明人： Manabu Kanzaki , Mitsuharu Yonemura , Masanari Kimoto , Shoji Kinomura , Toshihiro Imoto
IPC分类号： C22C19/05
CPC分类号： C22C19/058 , C22C19/05 , C22F1/02 , C22F1/10 , G21C21/00
摘要： A Ni—Cr alloy tube demonstrating an excellent corrosion resistance in a high temperature water environment can be provided, wherein the difference between uniform lattice strains of the surface layer thereof satisfies the following formulas (1) and (2). S≦0.002 (1) S=D500−D≦200 (2) wherein the meanings of the individual symbols in the above described formulas are as follows: S: The difference between uniform lattice strains (Å) of the surface layer D500: The {111} interplanar spacing (Å) at a depth of 500 nm from the material surface D≦200: The average value of the {111} interplanar spacings (Å) at the depth of 200 nm or less from the material surface.
摘要翻译：可以提供在高温水环境中表现出优异的耐腐蚀性的Ni-Cr合金管，其中表层的均匀晶格应变之间的差异满足下式（1）和（2）。（2）其中上述式中各个符号的含义如下：S：表面层D500的均匀晶格应变之间的差（）D500：The The The The The The The The The The The The 距材料表面深度500nm处的{111}晶面间距（）D＆nlE; 200：距离材料表面200nm或更小深度处的{111}晶面间距（）的平均值。

4. 发明申请

US20110056590A1 Ni-Cr ALLOY MATERIAL 有权
标题翻译：镍铬合金材料
公开(公告)号：US20110056590A1
公开(公告)日：2011-03-10
申请号：US12945978
申请日：2010-11-15
申请人： Manabu KANZAKI , Mitsuharu Yonemura , Masanari Kimoto , Shoji Kinomura , Toshihiro Imoto
发明人： Manabu KANZAKI , Mitsuharu Yonemura , Masanari Kimoto , Shoji Kinomura , Toshihiro Imoto
IPC分类号： C22C19/05
CPC分类号： C22C19/058 , C22C19/05 , C22F1/02 , C22F1/10 , G21C21/00
摘要： A Ni—Cr alloy tube demonstrating an excellent corrosion resistance in a high temperature water environment can be provided,wherein the difference between uniform lattice strains of the surface layer thereof satisfies the following formulas (1) and (2). S≦0.002 (1) S=D500−D≦200 (2) wherein the meanings of the individual symbols in the above described formulas are as follows:S: The difference between uniform lattice strains (Å) of the surface layerD500: The {111} interplanar spacing (Å) at a depth of 500 nm from the material surfaceD≦200: The average value of the {111} interplanar spacings (Å) at the depth of 200 nm or less from the material surface
摘要翻译：可以提供在高温水环境中表现出优异的耐腐蚀性的Ni-Cr合金管，其中表层的均匀晶格应变之间的差异满足下式（1）和（2）。（2）其中上述式中各个符号的含义如下：S：表面层D500的均匀晶格应变之间的差（）D500：The The The The The The The The The The The The 距材料表面深度500nm处的{111}晶面间距（）D＆nlE; 200：距材料表面200nm或更小深度处的{111}晶面间距（）的平均值

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