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    Manufacturing process of nickel-based alloy having improved high temperature sulfidation-corrosion resistance
    3.
    发明公开
    Manufacturing process of nickel-based alloy having improved high temperature sulfidation-corrosion resistance 有权
    一种用于生产基于镍的合金过程具有改善的耐腐蚀性Hochtemperatursulfidierungs

    公开(公告)号：EP1191118A1

    公开(公告)日：2002-03-27

    申请号：EP01116668.3

    申请日：2001-07-16

    申请人： HITACHI METALS, LTD. ,  EBARA CORPORATION

    发明人： Nonomura, Toshiaki ,  Ohno, Takehiro ,  Uehara, Toshihiro ,  Yakuwa, Hiroshi ,  Miyasaka, Matsuho ,  Nakahama, Shuhei ,  Sawada, Shigeru

    IPC分类号： C22F1/10 ,  C22C19/05

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

    摘要： A manufacturing method, particularly a forging treatment and a heat treatment method of a Ni-based alloy having sulfidation-corrosion resistance used for component members of corrosion-resistant high-temperature equipment, that is, Waspaloy (a trademark of United Technologies) or its improved Ni-based alloy wherein the high temperature sulfidation-corrosion resistance of the alloy can be improved while maintaining hot strength properties is disclosed. A Ni-based alloy used for the method consists essentially of 0.005 to 0.1% C, 18 to 21% Cr, 12 to 15% Co, 3.5 to 5.0% Mo, not more than 3.25% Ti and 1.2 to 4.0% Al (expressed in mass percentage), with the balance substantially comprising Ni. In the manufacturing method of a Ni-based alloy having improved sulfidation-corrosion resistance, the alloy is, after finish hot-worked at a temperature below carbide dissolving temperature, subjected to solution treatment at a temperature below the carbide dissolving temperature and below re-crystallization temperature and subjected to stabilizing treatment and aging treatment.

    摘要翻译： 的制造方法，特别是一种锻造处理和用于耐腐蚀高温设备的构成部件具有硫化-耐腐蚀性的Ni基合金的热处理方法中，确实，沃斯帕洛尹合金（联合技术公司的商标）或它的 改进Ni基合金worin该合金的高温硫化耐腐蚀性能，同时保持热强度性能是游离缺失盘加以改进。 用于该方法的镍基合金基本由0005 besteht至0.1％C，18〜21％的Cr，12〜15％的Co，3.5〜5.0％的Mo，不超过3.25％Ti和1.2〜4.0％的Al（表示 在质量百分比），其余基本上包含镍。 在的Ni基合金的制造方法中具有改善的硫化耐腐蚀性，所述合金，在低于碳化物溶解温度的温度后结束热加工，在低于碳化物溶解温度和低于再一个温度进行固溶处理 结晶温度和进行稳定化处理和时效处理。

    Fe-base superalloy
    5.
    发明公开
    Fe-base superalloy 失效
    Superlegierung auf Fe-Basis。

    公开(公告)号：EP0657558A1

    公开(公告)日：1995-06-14

    申请号：EP94104794.6

    申请日：1994-03-25

    申请人： HITACHI METALS, LTD.

    发明人： Sato, Koji ,  Ohno, Takehiro

    IPC分类号： C22C38/50 ,  C22C38/58

    CPC分类号： C22C38/50

    摘要： An Fe-base superalloy essentially consisting of,
       C: up to 0.20 wt-%,
       Si: up to 1.0 wt-%,
       Mn: up to 2.0 wt-%,
       Ni: more than 25 % and less than 30 wt-%,
       Cr: 10 to 15 wt-%,
       Mo: at least 0.05 wt-% and less than 1.0 wt-%
    or W: at least 0.05 wt-% and less than 2.0 wt-%
    or Mo+0.5W: at least 0.05 wt-% and less than 1.0 wt-%,
       Al: 0.7 to 2.0 wt-%,
       Ti: 2.5 to 4.0 wt-%,
       Nb: 0.05 to 1.0 wt-%,
    the balance being substantially Fe except impurities.

    摘要翻译： Fe基超合金包括重量％，至多0.20％C，至多1.0％Si，至多2.0％Mn，25-30％Ni，10-15％Cr，0.05-1.0％Mo和/或0.05 -2.0％W.Mo + 0.5W的量至少为0.05且小于1.0。 还存在0.7-2.0％的Al，2.5-4.0％的Ti，0.05-1.0％的Nb，余量是Fe和杂质。

    Self-lubricating piston ring material for internal combustion engine and piston ring
    6.
    发明公开
    Self-lubricating piston ring material for internal combustion engine and piston ring 有权
    Selbstschmierendes KolbenringmaterialfürVerbrennungsmotoren und Kolbenring

    公开(公告)号：EP1063454A3

    公开(公告)日：2003-09-17

    申请号：EP00112422.1

    申请日：2000-06-09

    申请人： HITACHI METALS, LTD.

    发明人： Kubota, Kunichika ,  Ohno, Takehiro ,  Masugata, Yoshiki

    IPC分类号： F16J9/26 ,  C22C38/00

    CPC分类号： F16J9/26

    摘要： There are disclosed a piston ring material and a piston ring both having such superior properties contradictory each other as the sliding property required in a piston ring and the mechanical properties of a steel wire material subjected to a manufacture process. The piston ring material or the piston ring consists essentially, by mass, of not less than 0.3% but less than 0.8% C, 0.1 to 3.0% Si, 0.1 to 3.0% Mn, 0.03 to 0.3% S, 0.3 to 6.0% Cr, preferably 3.0 to 6.0% or 0.3 to 1.0% Cr, 0 to 3.0% Cu, and the balance Fe, and the distribution state of sulfide inclusions with a maximum diameter/minimum size ≥ 3 observed on structure parallel to the outer peripheral surface of the formed piston ring is such that an intersecting angle made between straight lines passing the maximum size of two of the sulfide inclusions is not more than 30 degrees. Further, the area ratio of nonmetallic inclusions occupying the structure is 2.0% or less, or in addition to the above-described composition, at least one selected from the group consisting of 0.01% or less of Ca, 0.5% or less in total of one or more of V, Nb, Ti, and 1.5% or less of Al is contained.

    摘要翻译： 公开了一种活塞环材料和活塞环，其具有与活塞环所需的滑动性质和经受制造过程的钢丝材料的机械性能相互矛盾的优异性能。 活塞环材料或活塞环的质量基本上由不小于0.3％但小于0.8％的C，0.1至3.0％的Si，0.1至3.0％的Mn，0.03至0.3％的S，0.3至6.0％的Cr ，优选3.0〜6.0％或0.3〜1.0％的Cu，0〜3.0％的Cu，余量为Fe，并且在与外周面平行的结构上观察到的最大直径/最小尺寸≥3的硫化物夹杂物的分布状态 形成的活塞环使得通过两个硫化物夹杂物的最大尺寸的直线之间产生的相交角不大于30度。 此外，占据结构的非金属夹杂物的面积率为2.0％以下，或者除了上述组成之外，还含有选自0.01％以下的Ca，0.5％以下的Ca， 包含V，Nb，Ti和1.5％以下的Al中的一种或多种。

    Steel for separators of solid-oxide type fuel cells
    7.
    发明公开
    Steel for separators of solid-oxide type fuel cells 有权
    StahlfürFestoxid-Brennstoffzellenseparatoren

    公开(公告)号：EP1298228A2

    公开(公告)日：2003-04-02

    申请号：EP02009619.4

    申请日：2002-04-26

    申请人： HITACHI METALS, LTD.

    发明人： Uehara, Toshihiro ,  Toji, Akihiro ,  Ohno, Takehiro

    IPC分类号： C22C38/18 ,  C22C38/28 ,  H01M8/02

    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，其在700-950℃左右形成具有良好导电性的氧化膜，具有良好的抗氧化性，特别是即使在长时间的情况下也具有耐脱落性 的使用，在室温下的冲击性能优异，显示出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％且不大于0.0050％，下面的等式是 满足：（0 + 2S）/（0.27Y + 0.035Zr + 0.16REM）≤2.0，此外，在该钢中，硬度为280HV以下，铁素体平均粒径为 不低于提供细晶粒的ASTM No.2。

    High strength Ni-base superalloy for directionally solidified castings
    9.
    发明公开
    High strength Ni-base superalloy for directionally solidified castings 失效
    Hochfeste Superlegierung auf Nickelbasisfürgerichtet erstarrte Giesteilen

    公开(公告)号：EP0789087A1

    公开(公告)日：1997-08-13

    申请号：EP97101645.6

    申请日：1997-02-03

    申请人： HITACHI, LTD. ,  HITACHI METALS, LTD.

    发明人： Tamaki, Hideki ,  Yoshinari, Akira ,  Okayama, Akira ,  Kobayashi, Mitsuru ,  Kageyama, Kagehiro ,  Ohno, Takehiro

    IPC分类号： C22C19/05 ,  B22D27/04

    CPC分类号： B22D27/045 ,  C22C19/056 ,  C22C19/057

    摘要： In order to provide a high strength Ni-base superalloy for directionally solidified castings, which is prevented from solidification cracking at the casting, having a sufficient grain boundary strength for ensuring reliability during its operation and a superior high temperature concurrently, a high strength Ni-base superalloy for directionally solidified castings having a superior grain boundary strength, which contains C: 0.05 % to less than 0.1 %, B: 0.015 % to 0.04 %, Hf: 0.01 ∼ less than 0.5 %, Zr: less than 0.01 %, Cr: 1.5 % ∼ 16 %, Mo: utmost 6 %, W: 2 ∼ 12 %, Re: 0.1 ∼ 9 %, Ta: 2 ∼ 12 %, Nb: utmost 4 %, Al: 4.5 ∼ 6.5 %, Ti: less than 0.5 %, Co: less than 9 %, and Ni: at least 60 % in weight, is disclosed.

    摘要翻译： 为了提供一种用于定向凝固铸件的高强度Ni基超合金，其在铸造时防止固化裂纹，具有足够的晶界强度，以确保其操作期间的可靠性和优异的高温，高强度Ni- 具有优异的晶界强度的定向凝固铸件用基体超合金，其含有C：0.05〜小于0.1％，B：0.015〜0.04％，Hf：0.01〜少于0.5％，Zr：小于0.01％，Cr： ：1.5％类似16％，Mo：最大6％，W：2类12％，Re：0.1类似9％，Ta：2类12％，Nb：最大4％，Al：4.5类6.5％，Ti：少 公知：Co：小于9％，Ni：至少为60重量％。