研究了复合Zr盐添加温度及保温时间对Mg-1%Y合金凝固组织的影响.结果表明:760℃添加0.31% Zr保温20 min后实验合金的细化效果最好,其平均晶粒尺寸可由原来的4100 μm降至105 μm.研究还表明:Zr盐的加入也在镁熔体中引入了一些Zr的氧化物,这是降低Zr收得率的原因,同时也增加了熔体净化的难度.
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