快速凝固Al-Li合金的拉伸性能及微观机制

The study on microstructure and tensile properties in rapidly solidified Al-Li alloy

对不同的热处理条件下不同挤压比成型的快速凝固 Al- L i合金的拉伸性能进行了对比研究 ,通过电子透镜和扫描断口分析表明 ,Al- Li合金是一种近乎脆断的断裂方式 ,其原因是 δ′相 (Al3L i)和 S′相(Al2 Cu Mg)

An extensive study on rapidly solidified Al Li alloy was presented under different heat treatment process and extrusion ratio.By means of SEM and TEM methods, the broken mode of Al Li alloy seems like that of brittle materials.The major reason is that δ′(Al 3Li) and S′(Al 2CuMg) phrases can not work at the same time.