单一的Al-3Ti-4B细化剂可使ZL104合金获得100-120μm左右的等轴枝晶,抗衰退期至少达240 min;单一的Al-10Sr变质剂至少能在480 min内使ZL104合金共晶硅充分变质.当同时加入Al-3Ti-4B细化剂和Al-10Sr变质剂时,有效变质时间大为缩短,晶粒稍有长大,其原因系因Al-10Sr和Al-3Ti-4B反应生成了SrB6.
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