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利用透射电子显微镜对９００℃高温变形后的ＦｅＡｌ金属间化合物进行观察，发现材料中存在大量的方形位错环和位错蜷线偶．经确定，方形位错环位于（１００）面，Ｂｕｒｇｅｒｓ矢量为［１００］，是由空位聚集造成的．位错蜷线偶是由［１１１］螺型位错偶经过攀移形成的．有迹象表明，位错进一步攀移，可使位错蜷线偶产生另外一种与其具有相同Ｂｕｒｇｅｒｓ矢量的位错环，这种位错环位于与蜷线轴线垂直的面上．作者认为，位错的攀移运动是ＦｅＡｌ金属间化合物高温塑性好的主要原因．
Transmission electron microscopy (TEM) was used to observe the deformation of FeAl intermetallics at 900 ℃. It was found that there were a lot of square dislocation loops and dislocations in the material. It has been determined that the square dislocation ring is located on the (100) plane and the Burgers vector [100] is caused by the vacancy aggregation. Dislocation curls couple even by the [111] screw dislocation even through the formation of climbing. There are indications that further displacement of the dislocations allows the dislocations to generate another dislocation loop with the same Burgers vector, which is located on a plane perpendicular to the axis of the curl. The authors believe that the climbing movement of dislocations is the main reason for the high temperature plasticity of FeAl intermetallic compounds.