摘要
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 investigate the influence of Ce on mechanical anisotropy of Al Li alloys, the texture of 2090 Al Li alloy with different Ce content was determined using orientation distribution function technique in which the mechanical properties with different angles to rolling direction were measured. The effects of Ce on texture and mechanical properties of 2090 alloys were discussed. The results show that the type of main texture of 2090 Al Li alloys is {225}<554>. Ce will not change the type of main texture of the alloy, but make the distribution of main texture scattered. Ce can change the volume fractions of ideal texture components and will decrease the anisotropy of yield strength, hence the content of the texture components that enhance the anisotropy of yield strength can be reduced.
出处
《中国稀土学报》
CAS
CSCD
北大核心
1999年第4期329-332,共4页
Journal of the Chinese Society of Rare Earths
基金
国家自然科学基金
关键词
稀土
铝锂合金
力学性
铈
结构
Rare earths, Aluminium lithium alloy, ODF, Mechanical property
