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US5599408A Method of producing a structural member 失效
标题翻译：制造结构件的方法
公开(公告)号：US5599408A
公开(公告)日：1997-02-04
申请号：US232191
申请日：1994-05-04
申请人： Akitsugu Fujita , Takayuki Kawano , Makoto Nakamura , Fumikazu Sakai , Tatsuki Matsumoto , Shinsuke Oba , Hidetoshi Sueoka , Manabu Kimura , Masato Zama, deceased
发明人： Akitsugu Fujita , Takayuki Kawano , Makoto Nakamura , Fumikazu Sakai , Tatsuki Matsumoto , Shinsuke Oba , Hidetoshi Sueoka , Manabu Kimura , Masato Zama, deceased
IPC分类号： C21D1/78 , C21D6/00 , C21D9/00 , C21D9/50 , C22C38/48 , C21D6/02
CPC分类号： C21D6/004 , C21D1/78 , C22C38/48 , C21D2211/001 , C21D2211/008 , C21D9/0025 , C21D9/50
摘要： .epsilon. phase precipitates in the matrix having a composition of 0.07% or less carbon, 1 or less silicon, 1% or less manganese, 2.5 to 5% copper, 3 to 5.5% nickel, 14 to 17.5% chromium, 0.5% or less molybdenum, 0.15 to 0.45% niobium, by weight, and the balance composed substantially of iron, and comprising 6 to 30 vol % austenitic phase and the balance composed substantially of martensitic phase. In a method of producing a structural member in which first solution treatment is performed at 1010.degree. to 1050.degree. C. on a stainless steel having a composition described above and first aging treatment is performed at a temperature not lower than 520.degree. C. and not higher than 630.degree. C., second solution treatment is performed at 730.degree. to 840.degree. C., and then second aging treatment is performed at a temperature not lower than 520.degree. C. and not higher than 630.degree. C. or a structural member of any shape is fabricated by means of welding work before the second solution treatment. Also, a structural member is produced by performing first solution treatment at 1010.degree. to 1050.degree. C. on a stainless steel having a composition described above, performing aging treatment at a temperature not lower than 520.degree. C. and not higher than 630.degree. C., fabricating a structural member of any shape by means of welding work, heating the material at a rate of 100.degree. C./hour or lower, performing second solution treatment at 1010.degree. to 1050.degree. C., cooling the material in a furnace to room temperature at a cooling rate of 100.degree. C./hour or lower, performing aging treatment at a temperature not lower than 520.degree. C. and not higher than 630.degree. C., and cooling the material in a furnace to room temperature at a cooling rate of 100.degree. C./hour or lower.
摘要翻译： PCT No.PCT / JP93 / 01137 Sec。 371日期：1994年5月4日 102（e）日期1994年5月4日PCT提交1993年8月12日PCT公布。出版物WO94 / 05824 日期1994年3月17日在基体中的ε相析出物具有0.07％以下的碳，1％以下的硅，1％以下的锰，2.5〜5％的铜，3〜5.5％的镍，14〜17.5％的铬，0.5重量％以下的钼，0.15〜0.45重量％的铌，余量基本上由铁构成，并且含有6〜30体积％的奥氏体相，余量基本上由马氏体相组成。在具有上述组成的不锈钢上，在1010℃〜1050℃进行第一固溶处理的结构体的制造方法中，在不低于520℃的温度下进行第一时效处理高于630℃，在730℃至840℃进行第二次溶液处理，然后在不低于520℃且不高于630℃的温度下进行第二时效处理或结构构件任何形状的材料都是在第二次固溶处理之前通过焊接工艺制造的。此外，通过在具有上述组成的不锈钢上进行1010℃至1050℃的第一次固溶处理，在不低于520℃且不高于630℃的温度下进行时效处理来制造结构件通过焊接工作制造任何形状的结构件，以100℃/小时或更低的速率加热材料，在1010℃至1050℃进行第二次溶液处理，在炉中冷却材料以100℃/小时以下的冷却速度进行室温，在不低于520℃且不高于630℃的温度下进行时效处理，并将炉中的材料冷却至室温冷却速度为100℃/小时以上。

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