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对Ｆｅ－３６．５ａｔ％Ａｌ金属间化合物进行了高温拉伸试验研究。结果表明，变形温度在６００～１０００℃范围内，这种ＦｅＡｌ合金的延伸率随温度的升高不断增加，在１０００℃时延伸率最高，达１１５％。经透射电镜分析，该合金高温变形后不仅有大量的滑移位错线，而且有一定数量的位错绻线存在。这些位错的柏氏矢量均为〈１１１〉。研究认为，该合金在高温时的良好塑性来自于〈１１１〉型位错参与滑移以及〈１１１〉型位错发生攀移。
High-temperature tensile testing of Fe-36.5at% Al intermetallics was carried out. The results show that the elongation of the FeAl alloy increases with the increase of the temperature at the temperature range of 600 ~ 1000 ℃, and the elongation reaches 115% at 1000 ℃. Transmission electron microscopy analysis, the alloy after high temperature deformation not only a large number of slip dislocation line, but also a certain number of dislocation 绻 line exists. The Parkes vectors of these dislocations are both <111>. The study shows that the good ductility of the alloy at high temperature comes from the slip of <111> dislocation and the displacement of <111> dislocation.