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研究了将Ｃｒ、Ｍｏ、Ｍｎ、Ｔｉ、Ｎｉ、Ｓｉ等合金元素分别加入当量成分的Ｆｅ３Ａｌ金属间化合物后对其室温塑性、８００℃周期氧化性能、氧化物结构及Ａｌ元素由试样表面向内部的分布状态的影响．结果表明，只有Ｃｒ元素提高了ＤＯ３结构的Ｆｅ３Ａｌ金属间化合物合金在真空中的室温拉伸延伸率，其他元素都不同程度地降低了合金的塑性。Ｃｒ提高室温塑性的主要原因不是由于Ｃｒ改变了合金的表面氧化动力学或改变了表面氧化物结构及表面状态，进而降低了环境敏感性的缘故。
The effects of room temperature plasticity, oxidation cycle at 800 ℃, structure of oxide and Al element from the surface of the sample to the interior of the sample were investigated by adding Fe, Al, Mn, Ti, Ni, Si and other alloying elements into the Fe3Al intermetallic compound The impact of the distribution status. The results show that only the Cr element increases the room temperature tensile elongation of the Fe3Al intermetallic compound alloy with DO3 structure in vacuum, and the other elements all reduce the plasticity of the alloy to different extents. The main reason for the improvement of plasticity of room temperature Cr is not that Cr is used to change the surface oxidation kinetics or change the surface oxide structure and surface state of the alloy, thus reducing the environmental sensitivity.