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    • 9. 发明公开
    • PROCESS FOR MANUFACTURING NI-BASE ALLOY AND NI-BASE ALLOY
    • 制造方法的镍基合金和镍基合金
    • EP2336378A1
    • 2011-06-22
    • EP09817713.2
    • 2009-09-25
    • Hitachi Metals, Ltd.
    • AOKI ChuyaUEHARA ToshihiroOHNO Takehiro
    • C22F1/10C22B9/18C22B9/187C22B9/20C22C19/05C22F1/02C22F1/00
    • C22B9/04C22B9/18C22B9/20C22B23/06C22C19/055C22F1/02C22F1/10
    • 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.
    • 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。