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为了解Ｃｅ 对铝锂合金力学性能各向异性的影响， 对不同Ｃｅ 含量２０９０ 铝锂合金织构进行了ＯＤＦ（ 取向分布函数） 测算， 对合金不同方向性能进行了测量， 分析了Ｃｅ 对合金织构和力学性能的影响。２０９０ 铝锂合金主织构类型为｛２２５｝ ＜ ５５４＞ ，Ｃｅ 不改变合金主织构类型， 但造成主织构类型分布漫散； 由于Ｃｅ 降低了增加屈服强度各向异性织构成分的含量， 故Ｃｅ 可改变２０９０ 铝锂合金理想织构成分的体积分数， 减小屈服强度各向异性。
In order to understand the effect of Ce on the anisotropy of the mechanical properties of Al-Li alloys, the ODF (Orientation Distribution Function) of different Ce content of 2090 Al-Li alloy was calculated and the properties of the alloy in different directions were measured. Structure and mechanical properties of the impact. The main texture type of 2090 Al-Li alloy is {225} <554>. Ce does not change the main texture type of the alloy, but causes diffuse distribution of the main texture types. Ce decreases the content of the anisotropic texture component , So Ce can change the volume fraction of 2090 Al-Li alloy ideal texture components, reduce the yield strength anisotropy.