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1.关于镍基合金焊缝的生产经验600系列的镍基合金及其相应的焊接材料,如182合金(手工电弧焊)和82合金(采用填充材料的其它工艺方法),若干年前就在化学、石油工业及燃煤电厂中得到十分广泛的应用。在一些腐蚀环境中或要求抗蠕变性能的高温(500～600℃)应用时,则必须使用镍基合金而不用不锈钢。因此,对于那些在高温下操作的核动力设备(如气冷堆或快增殖堆)采用镍基合金是一种常用的解决办法。以往使用镍基材料经
1. Production experience with Ni-based alloy welds 600 series Ni-based alloys and their corresponding welding materials, such as 182 alloy (SMAW) and 82 alloy (other processing methods using filler materials), were introduced some years ago Chemical, oil industry and coal-fired power plants have been widely used. In some corrosive environments or at elevated temperatures (500-600 ° C) where creep resistance is required, nickel-base alloys must be used instead of stainless steel. Therefore, the use of nickel-based alloys for nuclear power plants that operate at high temperatures, such as gas-cooled reactors or fast breeders, is a common solution. Nickel-based materials used in the past