公开(公告)号：US06776956B2

公开(公告)日：2004-08-17

申请号：US10132571

申请日：2002-04-26

申请人： Toshihiro Uehara ,  Akihiro Toji ,  Takehiro Ohno

发明人： Toshihiro Uehara ,  Akihiro Toji ,  Takehiro Ohno

IPC分类号： C22C3818

CPC分类号： H01M8/0204 ,  C22C38/004 ,  C22C38/005 ,  C22C38/06 ,  C22C38/50 ,  H01M8/021 ,  H01M8/0228 ,  H01M8/0232

摘要： Provided is a steel for separators of solid-oxide type fuel cells, which forms oxide films having good electrical conductivity at 700 to 950° C. or so, has good oxidation resistance and, in particular, resistance to exfoliation even in the case of long hours of use, is excellent in impact properties at room temperature, shows a small difference in thermal expansion from the electrolyte, and is inexpensive. This steel for separators of solid-oxide fuel cells includes, by mass %, not more than 0.2% C, not more than 1.0% Si, not more than 1.0% Mn, not more than 2% Ni, 15 to 30% Cr, not more than 1% Al, one or more elements selected from the group of not more than 0.5% Y, not more than 0.2% REM and not more than 1% Zr, and the balance of Fe and unavoidable impurities. In this steel, amounts of S, O, N and B in the unavoidable impurities are restricted to not more than 0.015%, not more than 0.010%, not more than 0.050% and not more than 0.0050%, respectively, the following equation is satisfied: (0+2S)/(0.27Y+0.035Zr+0.16REM)≦2.0, Furthermore, in this steel, the hardness is not more than 280 HV and the average ferrite grain size number is not less than ASTM No. 2, which provides fine grains.

摘要翻译： 本发明提供一种固体氧化物型燃料电池用隔板的钢，其形成在700〜950℃左右的导电性良好的氧化膜，具有良好的抗氧化性，特别是长时间耐剥离性 使用时间小，室温下的冲击性优异，与电解质的热膨胀差异小，成本低廉。 用于固体氧化物型燃料电池用隔板的钢中，以质量％计不超过0.2％C，1.0％以下的Si，1.0％以下的Mn，2％以下的Ni，15〜30％的Cr， 不大于1％的Al，选自不超过0.5％Y，不超过0.2％REM和不超过1％Zr的一种或多种元素，余量为Fe和不可避免的杂质。 在这种钢中，不可避免的杂质中的S，O，N和B的量分别限制在不大于0.015％，不大于0.010％，不大于0.050％和不大于0.0050％，下面的等式是 满意：此外，在该钢中，硬度为280HV以下，平均铁素体晶粒尺寸数不小于提供细晶粒的ASTM No.2。

公开(公告)号：US20100226814A1

公开(公告)日：2010-09-09

申请号：US12675688

申请日：2008-08-29

申请人： Toshihiro Uehara ,  Takehiro Ohno ,  Akihiro Toji ,  Takashi Sato ,  Gang Bao ,  Shinya Imano ,  Hiroyuki Doi

发明人： Toshihiro Uehara ,  Takehiro Ohno ,  Akihiro Toji ,  Takashi Sato ,  Gang Bao ,  Shinya Imano ,  Hiroyuki Doi

IPC分类号： C22C19/05 ,  C22F1/10

CPC分类号： C22C19/055 ,  C22F1/10 ,  F28F21/083

摘要： Disclosed is a low-thermal-expansion Ni-based super-heat-resistant alloy for a boiler, which has excellent high-temperature strength. The alloy can be welded without the need of carrying out any aging treatment. The alloy has a Vickers hardness value of 240 or less. The alloy comprises (by mass) C in an amount of 0.2% or less, Si in an amount of 0.5% or less, Mn in an amount of 0.5% or less, Cr in an amount of 10 to 24%, one or both of Mo and W in such an amount satisfying the following formula: Mo+0.5 W=5 to 17%, Al in an amount of 0.5 to 2.0%, Ti in an amount of 1.0 to 3.0%, Fe in an amount of 10% or less, and one or both of B and Zr in an amount of 0.02% or less (excluding 0%) for B and in an amount of 0.2% or less (excluding 0%) for Zr, with the remainder being 48 to 78% of Ni and unavoidable impurities.

摘要翻译： 公开了一种用于锅炉的低热膨胀Ni基超耐热合金，其具有优异的高温强度。 可以焊接合金，而不需要进行任何时效处理。 该合金的维氏硬度值为240以下。 该合金含有0.2质量％以下的Si（以质量计），0.5％以下的Si，0.5％以下的Mn，10〜24％的Cr，1种或2种 的Mo和W的量满足下式：Mo + 0.5W = 5〜17％，Al为0.5〜2.0％，Ti为1.0〜3.0％，Fe为10％ 以下的B和Zr中的一种或两种，B的含量为0.02％以下（不含0％），Zr的含量为0.2％以下（不含0％），余量为48〜78 ％的Ni和不可避免的杂质。

公开(公告)号：US08444778B2

公开(公告)日：2013-05-21

申请号：US12675688

申请日：2008-08-29

申请人： Toshihiro Uehara ,  Takehiro Ohno ,  Akihiro Toji ,  Takashi Sato ,  Gang Bao ,  Shinya Imano ,  Hiroyuki Doi

发明人： Toshihiro Uehara ,  Takehiro Ohno ,  Akihiro Toji ,  Takashi Sato ,  Gang Bao ,  Shinya Imano ,  Hiroyuki Doi

IPC分类号： C22C19/05 ,  C22F1/10

CPC分类号： C22C19/055 ,  C22F1/10 ,  F28F21/083

摘要： Disclosed is a low-thermal-expansion Ni-based super-heat-resistant alloy for a boiler, which has excellent high-temperature strength. The alloy can be welded without the need of carrying out any aging treatment. The alloy has a Vickers hardness value of 240 or less. The alloy comprises (by mass) C in an amount of 0.2% or less, Si in an amount of 0.5% or less, Mn in an amount of 0.5% or less, Cr in an amount of 10 to 24%, one or both of Mo and W in such an amount satisfying the following formula: Mo+0.5 W=5 to 17%, Al in an amount of 0.5 to 2.0%, Ti in an amount of 1.0 to 3.0%, Fe in an amount of 10% or less, and one or both of B and Zr in an amount of 0.02% or less (excluding 0%) for B and in an amount of 0.2% or less (excluding 0%) for Zr, with the remainder being 48 to 78% of Ni and unavoidable impurities.

摘要翻译： 公开了一种用于锅炉的低热膨胀Ni基超耐热合金，其具有优异的高温强度。 可以焊接合金，而不需要进行任何时效处理。 该合金的维氏硬度值为240以下。 该合金含有0.2质量％以下的Si（以质量计），0.5％以下的Si，0.5％以下的Mn，10〜24％的Cr，1种或2种 的Mo和W的量满足下式：Mo + 0.5W = 5〜17％，Al为0.5〜2.0％，Ti为1.0〜3.0％，Fe为10％ 以下的B和Zr中的一种或两种，B的含量为0.02％以下（不包括0％），Zr的含量为0.2％以下（不含0％），余量为48〜78 ％的Ni和不可避免的杂质。

公开(公告)号：US20100092333A1

公开(公告)日：2010-04-15

申请号：US12529136

申请日：2008-03-07

申请人： Kazuhiro Yamamura ,  Masahiro Tobise ,  Toshihiro Uehara ,  Akihiro Toji

发明人： Kazuhiro Yamamura ,  Masahiro Tobise ,  Toshihiro Uehara ,  Akihiro Toji

IPC分类号： C22C14/00 ,  C22C27/02 ,  C22C19/03 ,  B22D21/00 ,  B22D23/00

CPC分类号： H01M4/94 ,  B01D53/228 ,  B01D67/0039 ,  B01D67/0074 ,  B01D69/02 ,  B01D71/022 ,  B01D2256/16 ,  B01D2325/20 ,  B01D2325/24 ,  C01B3/503 ,  C22C1/06 ,  C22C19/03 ,  C22C27/02 ,  C22C30/00 ,  C22F1/00 ,  C22F1/18

摘要： A hydrogen-permeable Nb—Ti—Ni alloy having a composition represented by Nb100-x-yTixNiy, wherein 10≦x≦60, and 10≦y≦50 by atomic %, with an oxygen content of 1000 ppm or less in an as-cast state, which comprises (a) a hydrogen-permeable primary phase containing 70 atomic % or more of Nb and 10 atomic % or less of Ni, and (b) a eutectic phase having a particle phase comprising Nb and Ti as main components with a small Ni content and having an average particle size of about 5 μm or less, which is dispersed in a matrix phase comprising 60 atomic % or more in total of Ni and Ti and having hydrogen embrittlement resistance, the alloy having a structure substantially free from an intermetallic compound phase.

摘要翻译： 具有由Nb100-x-yTixNiy表示的组成的氢可渗透的Nb-Ti-Ni合金，其中10和nlE; x和nlE; 60和10＆lt; lE; y＆nlE; 50以原子％计，氧含量为1000ppm以下 包括（a）含有70原子％以上的Nb和10原子％以下的Ni的氢渗透性主相，（b）具有以Nb和Ti为主成分的粒子相的共晶相， 其具有小的Ni含量并且具有约5μm或更小的平均粒度，其分散在总共包含60原子％或更多的Ni和Ti并且具有耐氢脆性的基质相中，该合金具有基本上无结构的结构 从金属间化合物相。

公开(公告)号：US06852177B2

公开(公告)日：2005-02-08

申请号：US10322669

申请日：2002-12-19

申请人： Satoshi Kubota ,  Toshihiro Uehara ,  Motoi Yamaguchi ,  Akihiro Toji

发明人： Satoshi Kubota ,  Toshihiro Uehara ,  Motoi Yamaguchi ,  Akihiro Toji

IPC分类号： C22C19/05 ,  C22F1/10

CPC分类号： C22C19/058 ,  C22C19/053 ,  C22C19/055 ,  C22C19/056 ,  C22F1/10

摘要： A nickel-based alloy is provided for provide parts and members of improved oxidation-resistance and high temperature strength for use in an oxidation atmosphere at high temperatures, such as automobile parts including an electrode for an ignition plug, power plant facility parts including a gas turbine nozzle, inner parts of heat treat furnaces, and fuel cell parts. The alloy improved in oxidation-resistance, high temperature strength and hot workability consists essentially of, in mass percentage, C: 0.003 to 0.1%, Si: 1.0% or less, Mn: 2.0% or less, Cr: 12 to 32%, Fe: 20% or less, Mg: 0.001 to 0.04%, at least one element, of not more than 2.5% in total, selected from the group consisting of Nb, Ta and V, impurity elements of S: 0.01% or less, but the ratio of the Mg-content to the S-content (Mg/S) being 1 or more, and Ti: 0 inclusive to 0.02%, and the rest being Ni and incidental impurities.

摘要翻译： 提供了一种镍基合金，用于提供在高温下用于氧化气氛中的改善的耐氧化性和高温强度的部件和部件，例如包括用于火花塞的电极的汽车部件，包括气体的发电厂设备部件 涡轮喷嘴，热处理炉的内部部件和燃料电池部件。 该合金的耐氧化性，耐高温性和热加工性提高了质量百分比，基本上以C：0.003〜0.1％，Si：1.0％以下，Mn：2.0％以下，Cr：12〜32％ Fe：20％以下，Mg：0.001〜0.04％，选自Nb，Ta和V中的至少一种不超过2.5％的元素，S：0.01％以下的杂质元素， 但Mg含量与S含量的比例（Mg / S）为1以上，Ti：0〜0.02％，其余为Ni及杂质。

公开(公告)号：US07481970B2

公开(公告)日：2009-01-27

申请号：US11134329

申请日：2005-05-23

申请人： Akihiro Toji ,  Toshihiro Uehara ,  Katsuhiko Tominaga ,  Shoichi Nakaya ,  Katsuaki Sato

发明人： Akihiro Toji ,  Toshihiro Uehara ,  Katsuhiko Tominaga ,  Shoichi Nakaya ,  Katsuaki Sato

IPC分类号： C22C19/051

CPC分类号： C22C19/051

摘要： A low cost, economical and less resource-consuming heat resistant alloy for use as material of engine valve is disclosed, while the alloy has excellent mechanical properties at high temperature and excellent toughness after heated for a long time that conventional heat resistant alloys have not had. The alloy consists essentially of, in mass percent, C of 0.01 to 0.15%, Si of 0.01 to 0.8%, Mn of 0.01 to 0.8, Cr of 14 to 17%, Mo of more than 3.0% but equal to or less than 5.0%, Al of 1.6 to 2.5%, Ti of 1.5 to 3.0%, Nb or Nb+Ta of 0.5 to 2.0%, Ni of 50 to 60%, B of 0.001 to 0.015%, at least one of Mg of 0.001 to 0.015% and Ca of 0.001 to 0.015%, and the balance being Fe, wherein value A defined by 0.293[Ni]−0.513[Cr]−1.814[Mo] is 2.0 to 5.8, value B defined by [Al]/([Al]+[Ti]+[Nb]+[Ta]) is 0.45 to 0.65, and value C defined by [Al]+[Ti]+[Nb]+[Ta] is 6.2 to 7.6, wherein brackets mean atomic % of each element in the alloy.

摘要翻译： 公开了低成本，经济且耗资较少的用作发动机气门材料的耐热合金，同时合金在高温下具有优异的机械性能，并且在常规耐热合金没有加热之后长时间加热后具有优异的韧性 。 该合金基本上以质量％计含有0.01至0.15％的C，0.01至0.8％的Si，0.01至0.8的Mn，14至17％的Cr，大于3.0％但等于或小于5.0的Mo ％，Al：1.6〜2.5％，Ti：1.5〜3.0％，Nb：Nb + Ta：0.5〜2.0％，Ni：50〜60％，B：0.001〜0.015％，Mg：0.001〜 ％和Ca为0.001〜0.015％，余量为Fe，其中由0.293 [Ni] -0.513 [Cr] -1.814 [Mo]定义的值A为2.0〜5.8，由[Al] /（[Al ] [Ti] + [Nb] + [Ta]）为0.45〜0.65，由[Al] + [Ti] + [Nb] + [Ta]定义的值C为6.2〜7.6， 合金中的每个元素。

公开(公告)号：US20050265887A1

公开(公告)日：2005-12-01

申请号：US11134329

申请日：2005-05-23

申请人： Akihiro Toji ,  Toshihiro Uehara ,  Katsuhiko Tominaga ,  Shoichi Nakaya ,  Katsuaki Sato

发明人： Akihiro Toji ,  Toshihiro Uehara ,  Katsuhiko Tominaga ,  Shoichi Nakaya ,  Katsuaki Sato

IPC分类号： C22C19/05

CPC分类号： C22C19/051

摘要： A low cost, economical and less resource-consuming heat resistant alloy for use as material of engine valve is disclosed, while the alloy has excellent mechanical properties at high temperature and excellent toughness after heated for a long time that conventional heat resistant alloys have not had. The alloy consists essentially of, in mass percent, C of 0.01 to 0.15%, Si of 0.01 to 0.8%, Mn of 0.01 to 0.8, Cr of 14 to 17%, Mo of more than 3.0% but equal to or less than 5.0%, Al of 1.6 to 2.5%, Ti of 1.5 to 3.0%, Nb or Nb+Ta of 0.5 to 2.0%, Ni of 50 to 60%, B of 0.001 to 0.015%, at least one of Mg of 0.001 to 0.015% and Ca of 0.001 to 0.015%, and the balance being Fe, wherein value A defined by 0.293[Ni]−0.513[Cr]−1.814[Mo] is 2.0 to 5.8, value B defined by [Al]/([Al]+[Ti]+[Nb]+[Ta]) is 0.45 to 0.65, and value C defined by [Al]+[Ti]+[Nb]+[Ta] is 6.2 to 7.6, wherein brackets mean atomic % of each element in the alloy.

摘要翻译： 公开了低成本，经济且耗资较少的用作发动机气门材料的耐热合金，同时合金在高温下具有优异的机械性能，并且在常规耐热合金没有加热之后长时间加热后具有优异的韧性 。 该合金基本上以质量％计含有0.01至0.15％的C，0.01至0.8％的Si，0.01至0.8的Mn，14至17％的Cr，大于3.0％但等于或小于5.0的Mo ％，Al：1.6〜2.5％，Ti：1.5〜3.0％，Nb：Nb + Ta：0.5〜2.0％，Ni：50〜60％，B：0.001〜0.015％，Mg：0.001〜 ％和Ca为0.001〜0.015％，余量为Fe，其中由0.293 [Ni] -0.513 [Cr] -1.814 [Mo]定义的值A为2.0〜5.8，由[Al] /（[Al ] [Ti] + [Nb] + [Ta]）为0.45〜0.65，由[Al] + [Ti] + [Nb] + [Ta]定义的值C为6.2〜7.6， 合金中的每个元素。

公开(公告)号：US08663549B2

公开(公告)日：2014-03-04

申请号：US12998209

申请日：2010-06-23

申请人： Katsuhiko Ohishi ,  Akihiro Toji

发明人： Katsuhiko Ohishi ,  Akihiro Toji

IPC分类号： C22C38/42 ,  C22C38/44 ,  C22C38/48

CPC分类号： C22C38/40 ,  C21D9/0068 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58 ,  F01L3/02 ,  F01L2101/00

摘要： To provide an inexpensive heat-resisting steel for engine valves by causing Fe-based heat-resisting steel to exhibit high temperature strength not inferior to that of Ni-based heat-resisting steel. A heat-resisting steel for engine valves excellent in high temperature strength containing, in % by mass, C: 0.20 to 0.50%, Si: 1.0% or less, Mn: 5.0% or less, P: 0.1 to 0.5%, Ni: 8.0 to 15.0%, Cr: 16.0 to 25.0%, Mo: 2.0% or less (including 0%), Cu: 0.5% or less, Nb: 1.0% or less (including 0%), W: 2.0% or less (including 0%), N: 0.02 to 0.30%, B: 0.01% or less, and remnants of Fe and impurities, wherein the heat-resisting steel for engine valves satisfies formulae below: 156.42P(%)+0.91Mo(%)+0.73W(%)−12.27Nb(%)+220.96N(%)+120.59≧170  Formula (1) 13.70P(%)−6.97Mo(%)−4.32W(%)−3.29Nb(%)+119.10N(%)+27.75≧25  Formula (2).

摘要翻译： 通过使Fe系耐热钢呈现出不劣于Ni系耐热钢的高温强度，为发动机阀提供便宜的耐热钢。 1.一种耐高温发动机用耐热钢，以质量％计含有C：0.20〜0.50％，Si：1.0％以下，Mn：5.0％以下，P：0.1〜0.5％，Ni： 8.0〜15.0％，Cr：16.0〜25.0％，Mo：2.0％以下（含0％），Cu：0.5％以下，Nb：1.0％以下（含0％），W：2.0％ 包括0％），N：0.02〜0.30％，B：0.01％以下，以及Fe和杂质的残留物，其中，发动机气门用耐热钢满足下式：156.42P（％）+ 0.91Mo + 0.73W（％） - 12.27Nb（％）+ 220.96N（％）+ 120.59> = 170（1）13.70P（％） - 6.97Mo（％） - 4.32W（％） - 3.29Nb（％）+ （10.2）（25）（27）

公开(公告)号：US20110182764A1

公开(公告)日：2011-07-28

申请号：US12998209

申请日：2010-06-23

申请人： Katsuhiko Ohishi ,  Akihiro Toji

发明人： Katsuhiko Ohishi ,  Akihiro Toji

IPC分类号： C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58

CPC分类号： C22C38/40 ,  C21D9/0068 ,  C22C38/001 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/42 ,  C22C38/44 ,  C22C38/48 ,  C22C38/54 ,  C22C38/58 ,  F01L3/02 ,  F01L2101/00

摘要： To provide an inexpensive heat-resisting steel for engine valves by causing Fe-based heat-resisting steel to exhibit high temperature strength not inferior to that of Ni-based heat-resisting steel. A heat-resisting steel for engine valves excellent in high temperature strength containing, in % by mass, C: 0.20 to 0.50%, Si: 1.0% or less, Mn: 5.0% or less, P: 0.1 to 0.5%, Ni: 8.0 to 15.0%, Cr: 16.0 to 25.0%, Mo: 2.0% or less (including 0%), Cu: 0.5% or less, Nb: 1.0% or less (including 0%), W: 2.0% or less (including 0%), N: 0.02 to 0.30%, B: 0.01% or less, and remnants of Fe and impurities, wherein the heat-resisting steel for engine valves satisfies formulae below: 156.42P(%)+0.91Mo(%)+0.73W(%)−12.27Nb(%)+220.96N(%)+120.59≧170  Formula (1) 13.70P(%)−6.97Mo(%)−4.32W(%)−3.29Nb(%)+119.10N(%)+27.75≧25  Formula (2)

摘要翻译： 通过使Fe系耐热钢呈现出不劣于Ni系耐热钢的高温强度，为发动机阀提供便宜的耐热钢。 1.一种耐高温发动机用耐热钢，以质量％计含有C：0.20〜0.50％，Si：1.0％以下，Mn：5.0％以下，P：0.1〜0.5％，Ni： 8.0〜15.0％，Cr：16.0〜25.0％，Mo：2.0％以下（含0％），Cu：0.5％以下，Nb：1.0％以下（含0％），W：2.0％ 包括0％），N：0.02〜0.30％，B：0.01％以下，以及Fe和杂质的残留物，其中，发动机气门用耐热钢满足下式：156.42P（％）+ 0.91Mo + 0.73W（％） - 12.27Nb（％）+220.96N（％）+120.59≥701式（1）13.70P（％）-6.77Mo（％）-4.32W（％） - 3.29Nb（％）+ 119.10N（％）+27.75≥25式（2）