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1. 发明授权

US06776956B2 Steel for separators of solid-oxide type fuel cells 有权
标题翻译：用于固体氧化物型燃料电池分离器的钢
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。

2. 发明授权

US06569221B2 FeCrAl alloy 有权
标题翻译： FeCrAl合金
公开(公告)号：US06569221B2
公开(公告)日：2003-05-27
申请号：US09941561
申请日：2001-08-30
申请人： Roger Berglund
发明人： Roger Berglund
IPC分类号： C22C3818
CPC分类号： H05B3/12 , C22C33/0285 , C22C38/06 , C22C38/18
摘要： This invention relates to an alloy suitable for use in industrial and other heating applications, having a ferritic stainless steel alloy comprising, in weight %, less than 0.02% carbon; ≦0.5% silicon; ≦0.2% manganese; 10.0-40.0% chromium; ≦0.6% nickel; ≦0.01% copper; 2.0-10.0% aluminum; one or more of Sc, Y, La, Ce, Ti, Zr, Hf, V, Nb and Ta in an amount of 0.1-1.0; remainder iron and unavoidable impurities. A heating element of this alloy is provided. A diffusion furnace having such a heating element is also provided.
摘要翻译：本发明涉及一种适用于工业和其他加热应用的合金，其具有铁素体不锈钢合金，其重量％为小于0.02％的碳; <= 0.5％硅; <= 0.2％锰; 10.0-40.0％铬; <= 0.6％镍; <= 0.01％铜; 2.0-10.0％铝; Sc，Y，La，Ce，Ti，Zr，Hf，V，Nb和Ta中的一种或多种; 剩余铁和不可避免的杂质。提供该合金的加热元件。还提供了具有这种加热元件的扩散炉。

3. 发明授权

US06464803B1 Stainless steel for brake disc excellent in resistance to temper softening 有权
标题翻译：制动盘不锈钢耐回火软化性能优异
公开(公告)号：US06464803B1
公开(公告)日：2002-10-15
申请号：US09652191
申请日：2000-08-31
申请人： Masayuki Tendo , Masao Kikuchi , Toshio Tanoue , Kiyoshi Yamaji
发明人： Masayuki Tendo , Masao Kikuchi , Toshio Tanoue , Kiyoshi Yamaji
IPC分类号： C22C3818
CPC分类号： C22C38/58 , C21D6/002 , C22C38/001 , C22C38/42 , C22C38/44 , C22C38/48
摘要： Brake disc produced by a hot-rolled stainless steel excellent in resistance to temper softening, characterized in that: said steel contains, in terms of wt %, C: 0.01 to 0.1%, N: 0.03% or less, C+N: 0.04 to 0.1%, Si: 1% or less, Mn: 20 or less, Ni: less than 0.5%, Cr: 10 to 15%, and Nb: 0.02% to 0.5%, with the balance Fe and unavoidable impurities; that the hardness after quenching heat treatment is in the range of 30 to 40 HRC; and that the temper softening temperature for lowering the hardness to below 30 HRC is at least 530° C. Further, it is desirable to add at least one of the following elements; 0.1 to 2% of Cu, 0.1 to 1% of Mo, 0.01 to 0.5% of Ti, 0.01 to 0.5% of V or 0.0005 to 0.01% of B, and to make the value of &ggr;p calculated from steel chemical composition at least 70%.
摘要翻译：耐回火软化性优异的热轧不锈钢制造的制动盘，其特征在于：所述钢以重量％计含有C：0.01〜0.1％，N：0.03％以下，C + N：0.04 至0.1％，Si：1％以下，Mn：20以下，Ni：小于0.5％，Cr：10〜15％，Nb：0.02〜0.5％，余量为Fe和不可避免的杂质。淬火热处理后的硬度在30〜40HRC的范围内; 并且用于将硬度降低到低于30HRC的回火软化温度为至少530℃。此外，期望添加以下元素中的至少一种; 0.1〜2％的Cu，0.1〜1％的Mo，0.01〜0.5％的Ti，0.01〜0.5％的V或0.0005〜0.01％的B，由钢的化学组成计算得到的Gammap值至少为70 ％。

4. 发明授权

US06458221B1 Ferritic stainless steel plate 有权
标题翻译：铁素体不锈钢板
公开(公告)号：US06458221B1
公开(公告)日：2002-10-01
申请号：US09700779
申请日：2000-11-20
申请人： Hiroki Ota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
发明人： Hiroki Ota , Yasushi Kato , Takumi Ujiro , Susumu Satoh
IPC分类号： C22C3818
CPC分类号： C22C38/46 , C21D8/0405 , C21D8/0436 , C21D8/0463 , C21D8/0473 , C22C38/001 , C22C38/002 , C22C38/48
摘要： The present invention provides a ferritic stainless steel sheet having excellent formability and excellent surface quality after forming. In specific means, the steel sheet contains, by mass %, 0.02 to 0.06% of C, 1.0% or less of Si, 1.0% or less of Mn, 0.05% or less of P, 0.01% or less of S, 0.005% or less of Al, 0.005% or less of Ti, 11 to 30% of Cr, 0.7% or less of Ni, the balance composed of Fe, and inevitable impurities, wherein N is contained to satisfy the relation to the C content represented by 0.06≦(C+N)≦0.12, and 1≦N/C, and V is contained to satisfy the relation to the N content represented by 1.5×10−3≦(V×N)≦1.5×10−2 (wherein C, N and V: the contents (mass %) of the elements).
摘要翻译：本发明提供一种成形性优异且成形后表面质量优异的铁素体系不锈钢板。具体地说，钢板以质量％计含有C：0.02〜0.06％，Si：1.0％以下，Mn：1.0％以下，P：0.05％以下，S：0.01％以下，S：0.005％或更少的Al，0.005％以下的Ti，11〜30％的Cr，0.7％以下的Ni，余量由Fe和不可避免的杂质组成，其中N包含以满足与C 0.06 <=（C + N）<= 0.12，1 <= N / C，并且包含V以满足与1.5×10 -3 <=（VxN）<= 1.5×10 -2 其中C，N和V：元素的含量（质量％））。

5. 发明授权

US06821360B2 Heat-resisting steel, method for thermally treating heat-resisting steel, and components made of heat-resisting steel 有权
标题翻译：耐热钢，耐热钢热处理方法以及由耐热钢制成的部件
公开(公告)号：US06821360B2
公开(公告)日：2004-11-23
申请号：US09725234
申请日：2000-11-29
申请人： Ryuichi Ishii , Yoichi Tsuda , Masayuki Yamada
发明人： Ryuichi Ishii , Yoichi Tsuda , Masayuki Yamada
IPC分类号： C22C3818
CPC分类号： C22C38/32 , C21D1/28 , C21D9/38 , C22C38/001 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28
摘要： A heat-resisting steel comprising 0.15-0.30 wt. % C, 0.05-0.3 wt. % Si, 0.01-0.7 wt. % Mn, 1.8-2.5 wt. % Cr, 0.15-0.23 wt. % V, 1.5-2.5 wt. % W, 0.01-0.02 wt. % Ti, 0.01-0.08 wt. % Nb, 0.005-0.03 wt. % N, 0.001-0.015 wt. % B, and Fe and unavoidable impurities as the remainder; a heat-resisting steel comprising 0.15-0.30 wt. % C, 0.05-0.3 wt. % Si, 0.01-0.7 wt. % Mn, 1.8-2.5 wt. % Cr, 0.15-0.23 wt. % V, 1.5-2.5 wt. % W, 0.3-0.8 wt. % Mo, 0.01-0.02 wt. % Ti, 0.01-0.08 wt. % Nb, 0.005-0.03 wt. % N, 0.001-0.015 wt. % B, and Fe and unavoidable impurities as the remainder; and a heat-resisting steel that is obtained by subjecting one of the above heat-resisting steels to a heat treatment comprising the step of oil-cooling the heat-resisting steel to a temperature of 300° C. or lower. These heat-resisting steels are excellent in both high-temperature strength and impact properties.
摘要翻译：一种耐热钢，其含有0.15-0.30wt。％C，0.05-0.3重量％％Si，0.01-0.7wt。％Mn，1.8-2.5重量％％Cr，0.15-0.23wt。％V，1.5-2.5wt。％W，0.01-0.02wt。％Ti，0.01-0.08wt。％Nb，0.005-0.03wt。％N，0.001-0.015wt。％B，Fe和其余的不可避免的杂质; 包含0.15-0.30重量％的耐热钢。％C，0.05-0.3重量％％Si，0.01-0.7wt。％Mn，1.8-2.5重量％％Cr，0.15-0.23wt。％V，1.5-2.5wt。％W，0.3-0.8wt。％Mo，0.01-0.02wt。％Ti，0.01-0.08wt。％Nb，0.005-0.03wt。％N，0.001-0.015wt。％B，Fe和其余的不可避免的杂质; 以及耐热钢，其通过使上述耐热钢中的一种进行热处理而获得，所述热处理包括将耐热钢的油冷却步骤至300℃或更低的温度。这些耐热钢在高温强度和冲击性方面均优异。

6. 发明授权

US06667005B2 Corrosion resistant steel 失效
标题翻译：耐腐蚀钢
公开(公告)号：US06667005B2
公开(公告)日：2003-12-23
申请号：US10144838
申请日：2002-05-15
申请人： Kiyohito Ishida , Katsunari Oikawa , Takashi Ebata , Koichi Ishikawa , Toshiharu Noda , Tetsuya Shimizu
发明人： Kiyohito Ishida , Katsunari Oikawa , Takashi Ebata , Koichi Ishikawa , Toshiharu Noda , Tetsuya Shimizu
IPC分类号： C22C3818
CPC分类号： C22C38/50 , C21D8/065 , C22C38/42 , C22C38/60
摘要： Disclosed is a corrosion resistant steel having good machinability with sufficient corrosion resistance in the ordinary indoor circumstances and suitable for manufacturing shafts of various small motors and OA-machines. The steel comprises, by weight %, C: 0.005-0.200%, P: up to 0.05%, Cu: up to 2.0%, Ni: up to 2.0%, Cr: 2.0-9.0%, one or both of Ti and Zr: in such an amount as [Ti %]+0.52[Zr %]: 0.03-1.20%, one or both of S: 0.01-0.50% and Se: 0.01-0.40%, N: up to 0.050% and O: up to 0.030%, the balance being Fe and inevitable impurities. The steel is characterized by the inclusion therein, which are Ti-based, Zr-based or Ti-Zr-based compound or compounds containing C and one or both of S and Se.
摘要翻译：本发明公开了一种耐腐蚀钢，在普通室内环境下具有良好的机械加工性和足够的耐腐蚀性，适用于制造各种小型电动机和OA机的轴。该钢以重量％计含有C：0.005-0.200％，P：0.05％以下，Cu：2.0％以下，Ni：2.0％以下，Cr：2.0〜9.0％，Ti和Zr中的一种或两种：[Ti％] + 0.52 [Zr％]：0.03〜1.20％，S：0.01-0.50％，Se：0.01-0.40％，N：0.050％以及O：上述至0.030％，余量为Fe和不可避免的杂质。钢的特征在于其中包含Ti基，Zr基或Ti-Zr基化合物或含有C和S和Se中的一个或两者的化合物。

7. 发明授权

US06402858B1 Super-clean steel 有权
标题翻译：超清洁钢
公开(公告)号：US06402858B1
公开(公告)日：2002-06-11
申请号：US09527571
申请日：2000-03-16
申请人： Yukio Ishizaka
发明人： Yukio Ishizaka
IPC分类号： C22C3818
CPC分类号： C22C38/04 , C21D8/06 , C22C38/02 , C22C38/18 , C22C38/42 , C22C38/44 , C22C38/46
摘要： The steel of the present invention satisfies the following requirement for non-metallic inclusion area: when the steel is melted by an electron beam under the conditions of an irradiation rate of 200 to 600 J/sec., an irradeation time of 10 to 25 seconds, and an irradeation energy of 5000 J or more, the area of non-metallic inclusions existing in the surface of the sample after solidification falls within 15,000 &mgr;m2 or less. The steel exhibits excellent cold workability and fatigue properties.
摘要翻译：本发明的钢对于非金属夹杂物面积满足以下要求：当在200〜600J / sec的照射速度的条件下钢被电子束熔化时，10〜25秒的冲洗时间，5000J以上的冲击能量，凝固后的样品表面存在的非金属夹杂物的面积在15000m2以下。钢具有优异的冷加工性和疲劳特性。

8. 发明授权

US06273968B1 Low-carbon steels of superior mechanical and corrosion properties and process of making thereof 有权
标题翻译：低碳钢具有优异的机械和腐蚀性能及其制造工艺
公开(公告)号：US06273968B1
公开(公告)日：2001-08-14
申请号：US09537000
申请日：2000-03-28
申请人： Gareth Thomas
发明人： Gareth Thomas
IPC分类号： C22C3818
CPC分类号： C21D1/25 , C21D1/18 , C21D7/02 , C21D2211/001 , C21D2211/008 , C22C38/18 , C22C38/34
摘要： Alloy steels that combine high strength and toughness with high corrosion resistance are achieved by a dislocated lath microstructure, in which dislocated martensite laths that are substantially free of twinning alternate with thin films of retained austenite, with an absence of autotempered carbides, nitrides and carbonitrides in both the dislocated martensite laths and the retained austenite films. This microstructure is achieved by selecting an alloy composition whose martensite start temperature is 350° C. or greater, and by selecting a cooling regime from the austenite phase through the martensite transition region that avoids regions in which autotempering occurs.
摘要翻译：通过脱位的板条微观结构实现结合高强度和韧性以及高耐腐蚀性的合金钢，其中基本上不含孪晶的脱离马氏体板条与残留奥氏体的薄膜交替，不存在自热碳化物，氮化物和碳氮化物位错的马氏体板条和残余奥氏体膜。通过选择马氏体开始温度为350℃以上的合金组成，通过选择避免发生自回火的区域的奥氏体相通过马氏体过渡区域的冷却状态来实现该微观结构。

9. 发明授权

US06207103B1 Fe-Cr-Si steel sheets having excellent corrosion resistance and method for manufacturing the same 失效
标题翻译：具有优异耐腐蚀性的Fe-Cr-Si钢板及其制造方法
公开(公告)号：US06207103B1
公开(公告)日：2001-03-27
申请号：US09123969
申请日：1998-07-29
申请人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
发明人： Shigeaki Takajo , Takako Yamashita , Akihiro Matsuzaki , Osamu Kondo
IPC分类号： C22C3818
CPC分类号： C22C38/34
摘要： Fe—Cr—Si steel sheet having an excellent corrosion resistance and high toughness and method for manufacturing the same; the amount of Cr is about 10-30 wt %, the total amount of C and N is not more than about 100 ppm and the remainder consists of Fe and incidental impurities; when a cast piece of this steel is subjected to hot rolling to roll into a thickness of not more than about 3 mm, the hot rolled sheet can be subjected to cold rolling or to warm rolling without annealing.
摘要翻译：具有优异的耐腐蚀性和高韧性的Fe-Cr-Si钢板及其制造方法; Cr的量为约10-30重量％，C和N的总量不大于约100ppm，其余由Fe和附带的杂质组成; 当将该钢的铸件进行热轧轧制成不大于3mm的厚度时，可以对热轧板进行冷轧或不进行退火的温轧。

10. 发明授权

US06174385B1 Ferritic heat resistant steels 有权
标题翻译：铁素体耐热钢
公开(公告)号：US06174385B1
公开(公告)日：2001-01-16
申请号：US09192202
申请日：1998-11-16
申请人： Masahiko Morinaga , Yoshinori Murata , Ryokichi Hashizume
发明人： Masahiko Morinaga , Yoshinori Murata , Ryokichi Hashizume
IPC分类号： C22C3818
CPC分类号： C22C38/36 , C22C38/00 , C22C38/001 , C22C38/22 , C22C38/26 , C22C38/54
摘要： A method of designing a ferritic iron-base alloy having excellent characteristics according not to the conventional trial-and-error technique but to a theoretical method, and a ferritic heat-resistant steel for use as the material of turbines and boilers usable even in an ultrasupercritical pressure power plant. Specifically, the d-electron orbital energy level (Md) and the bond order (Bo) with respect to iron (Fe) of each alloying element of a body-centered cubic iron-base alloy are determined by the Dv-X&agr; cluster method, and the type and quantity of each element to be added to the alloy are determined in such a manner that the average Bo value and average Md value represented respectively by the following equations: average Bo value=&Egr; Xi·(Bo)i 1 average Md value=&Egr; Xi·(Md)i 2 coincide with particular values conforming to the characteristics required of the alloy; wherein Xi represents atomic fraction of an alloying element i, and (Bo)i and (Md)i represent respectively the Bo value and Md value of the element i. Preferably, the average Bo value and average Md value are, respectively, in the ranges of 1.805 to 1.817 and 0.8520 to 0.8628.
摘要翻译：一种根据传统的试错技术而非理论方法设计具有优异特性的铁素体铁基合金的方法，以及用作涡轮机和锅炉的材料的铁素体耐热钢，即使在超临界压力发电厂。具体地说，体心立方铁基合金的合金元素的d电子轨道能级（Md）和键级（Bo）相对于铁（Fe）由Dv-Xalpha簇法确定，并且按照以下方程分别表示的平均Bo值和平均Md值与符合合金要求的特性的特定值相一致地确定添加到合金中的各元素的种类和数量。其中，Xi表示合金元素i的原子分数，（Bo）i和（Md）i分别表示元素i的Bo值和Md值。优选地，平均Bo值和平均Md值分别在1.805至1.817和0.8520至0.8628的范围内。

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