Differential scanning calorimetry(DSC), electron probe microanalysis(EPMA) and rapid solidification were adopted to study the effects of Ni and Mn on the microstructure, solidification process and aging hardening characteristics of Al Si Cu Mg alloy.

• 采用DSC差热分析及急冷试验方法并辅以微区成分分析 ,探讨了Ni和Mn对Al Si Cu Mg四元合金凝固组织、凝固过程及时效硬化特性的影响。