分别用电子束焊(EBW)及钨极氩弧焊(GTA)两种焊接方法对Fe-Al基合金试样进行了焊接性研究.结果表明,用EBW方法可以成功地得到无裂纹与缺陷的Fe-Al基合金焊缝;对GTA方法,需采用预热及焊后缓冷工艺方可有效地阻止延迟冷裂纹的产生,选择中低碳CrMo钢焊丝作填充材料,使Fe3Al基合金具有较好的焊接性.同种材料,同种焊丝,在保证焊透的情况下,减小焊接电流和热输入,有利于提高材料的抗裂能力.
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