Al-Li合金显微组织与力学性能关系的研究

Relationship Between Microstructure and Mechanical Propertie of AL-Li Alloy

研究8090A1-Li合金显微组织和力学性能的关系．通过定量分析的方法分析了δ’相的尺寸、数量对合金力学性能的影响．结果表明：时效初期δ’相长大速度较快，δ’相平均尺寸长到13nm时，合金的屈服强度达到530MPa．

The present work studied the aged microstructures and Mechanical properties of 8090 Al-Li alloy.The effect of Size And quantity of δ' phase on mechanical property was inverstigated By quatitative analysis.The results showed that the growth rate of δ' phase was Higher at the beginning of aging and when the average size of δ' phase was about 13 nm,the yield strength of the alloy reached maximal value,530 Mpa.