摘要7055铝合金液相线625℃以上，对7055铭合金熔体进行超声波预处理后模铸，研究超声熔体预处理对7055铝合金凝固组织和力学性能的影响。

• The effect of ultrasonic melt pretreatment on the solidification structure and mechanical properties of 7055 aluminum alloy was investigated.