锆含量及铸造温度对MB15镁合金中化合物的影响  

Effects of Zr and casting temperature on the compound in MB15 magnesium alloy

作　　者：张磊[1] 郑力[1] 丛福官[1] 梁冰[1] 王小鑫[1] 王国军[1] 

机构地区：[1]东北轻合金有限责任公司,黑龙江哈尔滨150060

出　　处：《轻合金加工技术》2017年第8期26-29,45,共5页Light Alloy Fabrication Technology

摘　　要：实验室条件下模拟工业化生产过程,研究了MB15镁合金中不同锆含量及不同铸造温度对化合物的影响。结果表明,随着锆含量的增加和铸造温度的降低,合金中形成α(Zr)或Zn_2Zr_3相,一般应将锆的质量分数控制在0.55%以下,铸造温度不低于705℃,从而避免化合物的形成及偏聚。The industrial production is simulated under laboratory conditions to study the effect of Zr and casting temperature on the compound of MB15 magnesium alloy. The results show that or（Zr） or Zn2Zr3 phases are formed in the alloy with the Zr content increasing and the casting temperature decreasing. Thus the Zr content should be generally controlled below 0.55wt. % and the casting temperature not less than 705℃, to avoid the formation and segre- gation of compounds.

关 键 词：MB15镁合金 铸造温度 显微组织 化合物 

分 类 号：TG292[金属学及工艺—铸造]