Applications of structure heredity of AZ91D alloy on grain refinement and improving mechanical properties were investigated by adding die-casting parts (DCP) of AZ91D into the melt of AZ91D ingot.

• 通过向AZ91D铸锭熔化后的熔体中添加一定量的细晶AZ91D压铸件,对利用AZ91D镁合金组织遗传性细化铸件晶粒、提高合金力学性能进行了初步研究。