MgCO_3与La_2(CO_3)_3对镁合金晶粒细化效果对比的研究  

The Reseach on the Contrastive Effect of MgCO_3 and La_2(CO_3)_3 on the Grain Refinement in Magnesium Alloy

作　　者：韩世平[1] 刘红梅[1] 赵浩峰[1] 

机构地区：[1]太原理工大学,太原030204

出　　处：《铸造设备研究》2003年第4期16-17,43,共3页Research Studies On Foundry Equipment

摘　　要：在镁铝系合金晶粒细化工艺过程中,传统的变质剂采用的是MgCO3或C2Cl6等,在本文分别用MgCO3和La2(CO3)3处理AZ91D镁合金。实验结果表明,La2(CO3)3的细化效果要优于MgCO3对镁合金的晶粒细化效果。MgCO3 or C2Cl6 is used as the conventional grain refiner on the grain refinement in magnesiumaluminum alloy.In this paper MgCO3 and La2(CO3)3 are respectively used on the grain refinement in magnesium alloy AZ91D.The result showed that as grain refiner of magnesium alloy,La2(CO3)3　had better effect on magnetism alloy than that of MgCO3.

关 键 词：镁合金 晶粒细化 变质剂 MGCO3 La2(CO3)3 碳质孕育法 

分 类 号：TG292[金属学及工艺—铸造]