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    PROCESS FOR MANUFACTURING NI-BASE ALLOY AND NI-BASE ALLOY
    7.
    发明公开
    PROCESS FOR MANUFACTURING NI-BASE ALLOY AND NI-BASE ALLOY 有权
    制造方法的镍基合金和镍基合金

    公开(公告)号：EP2336378A1

    公开(公告)日：2011-06-22

    申请号：EP09817713.2

    申请日：2009-09-25

    申请人： Hitachi Metals, Ltd.

    发明人： AOKI Chuya ,  UEHARA Toshihiro ,  OHNO Takehiro

    IPC分类号： C22F1/10 ,  C22B9/18 ,  C22B9/187 ,  C22B9/20 ,  C22C19/05 ,  C22F1/02 ,  C22F1/00

    CPC分类号： C22B9/04 ,  C22B9/18 ,  C22B9/20 ,  C22B23/06 ,  C22C19/055 ,  C22F1/02 ,  C22F1/10

    摘要： Provided is an Ni-base alloy excellent in strength, ductility and other properties through the resolution of micro-segregation. Also provided is a process for manufacturing an Ni-base alloy containing by mass C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 10 to 24%, Mo+(1/2)W (where Mo may be contained either alone or as an essential component): 5 to 17%, Al: 0.5 to 1.8%, Ti: 1 to 2.5%, Mg: 0.02% or less, and either B: 0.02% or less and/or Zr: 0.2% or less at an Al/(Al+0.56Ti) ratio of 0.45 to 0.70 with the balance consisting ofNi and impurities, which comprises subjecting, at least one time, an Ni-base alloy raw material which is prepared by vacuum melting and has the above composition to homogenization heat treatment at 1160 to 1220°C for 1 to 100 hours. The Mo segregation ratio of the alloy is controlled to 1 to 1.17 by the homogenization heat treatment.

    摘要翻译： 本发明提供一种通过微偏析的分辨率的Ni基合金具有优异的强度，延展性和其它性质。 因此提供了一种用于制造Ni基合金的质量含有C的方法：0.15％或以下，Si：1％以下，Mn：1％以下，Cr：10〜24％以下，Mo +（1/2）W的 （其中的Mo可以包含单独的或作为基本组分）：5〜17％以下，Al：0.5〜1.8％以下，Ti：1〜2.5％以下，Mg：0.02％以下，要么B：0.02％以下和 /或Zr：在12:45的Al /（铝+ 0.56Ti）的值为比0.2％或更少至0.70，余量其余为Ni和杂质，该方法包括使至少一个时间，Ni基合金剃刀的所有这些是制备 通过真空熔化，并具有在上述组合物在1160至均质化热处理至1220℃下进行1〜100小时。 该合金的Mo偏析比是由均质化热处理控制为1至1.17。

    HIGH-STRENGTH NI-BASE ALLOY PIPE FOR USE IN NUCLEAR POWER PLANTS AND PROCESS FOR PRODUCTION THEREOF
    8.
    发明公开
    HIGH-STRENGTH NI-BASE ALLOY PIPE FOR USE IN NUCLEAR POWER PLANTS AND PROCESS FOR PRODUCTION THEREOF 审中-公开
    HOCHFESTES ROHR AUS EINER尼古拉斯GGR ATOMKRAFTWERKE UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2281908A1

    公开(公告)日：2011-02-09

    申请号：EP09750590.3

    申请日：2009-05-20

    申请人： Sumitomo Metal Industries, Ltd.

    发明人： YOKOYAMA, Tetsuo ,  ANADA, Hiroyuki

    IPC分类号： C22C19/05 ,  B21C23/08 ,  C22B9/18 ,  C22B9/187 ,  C22F1/10 ,  C22F1/00

    CPC分类号： B21C23/08 ,  B21J1/02 ,  C21D6/004 ,  C21D7/13 ,  C21D8/10 ,  C21D9/08 ,  C22B9/18 ,  C22B23/06 ,  C22C19/05 ,  C22C19/058 ,  C22F1/10 ,  Y10T428/12

    摘要： [Problem to be Solved]
    There are provided a high-strength Ni-based alloy tube for nuclear power use having uniform high temperature strength throughout the overall length of tube and a method for manufacturing the same.
    [Solution]
    The high-strength Ni-based alloy tube for nuclear power use consists, by mass percent, of C: 0.04% or less, Si: 0.10 to 0.50%, Mn: 0.05 to 0.50%, Ni: 55 to 70%, Cr: more than 26% and not more than 35%, Al: 0.005 to 0.5%, N: 0.02 to 0.10%, and one or more kinds of Ti: 0.01 to 0.5% and Nb: 0.02 to 1.0%, the balance being Fe and impurities. For this alloy tube, the grain size is as fine as grain size No. 6 or higher in JIS G 0551. It is preferable that the high-strength Ni-based alloy tube be manufactured by the process described below:
    preparing a Ni-based alloy stock through a remelting process, hot forging, heating to 1000 to 1160°C, hot extruding at a working ratio such that an extrusion ratio is 4 or higher, and performing solution annealing and thermal treatment.

    摘要翻译： [待解决的问题]提供了在管的整个长度上具有均匀的高温强度的用于核电用途的高强度Ni基合金管及其制造方法。 [解决方案]核电用高强度Ni基合金管以质量％计含有C：0.04％以下，Si：0.10〜0.50％，Mn：0.05〜0.50％，Ni：55〜70％ ，Cr：26％以上35％以下，Al：0.005〜0.5％，N：0.02〜0.10％，Ti：0.01〜0.5％，Nb：0.02〜1.0％ 是铁和杂质。 对于该合金管，在JIS G 0551中，晶粒尺寸为6号以上的晶粒度。优选的是，通过以下工序制造高强度Ni基合金管：制备Ni基 合金原料通过重熔工艺，热锻，加热至1000〜1160℃，以挤出比为4以上的加工率进行热挤压，进行固溶退火和热处理。