【作者】 王瑞； 房灿峰； 刘晓滕； 王宇； 郝海；

【Author】 WANG Rui;FANG Can-feng;LIU Xiao-teng;WANG Yu;HAO Hai;School of Materials Science and Engineering, Dalian University of Technology;

【机构】 大连理工大学；

【摘要】 铸造镁合金流动性优劣直接影响铸件质量特别是薄壁复杂结构铸件能否成功制备。本文以稀土元素Ce、碱土元素Sr及Ca的含量为因素,选取热导率、粘度和凝固区间三个影响流动性的热物理性能作为指标,采用相图与材料性能计算软件模拟进行正交试验,得出以上三种元素能够明显影响ZM2镁合金流动性的结论,及较优的元素含量配置(Ce 1.7%w.t.、Sr 0.4%w.t.、Ca 0.4%w.t.)。用单螺旋铸型进行ZM2镁合金浇注试验,验证模拟得到的三种元素对流动性的影响,并对其影响机理进行分析。更多还原

【Abstract】 with the content of Ce,Sr and Ca elements as three factors, thermal conductivity, viscosity and solidification range as three indexes, orthogonal tests are carried out using simulation software for materials property. The three elements are proved can increase the fluidity of alloy liquid. And optimized contents of elements are obtained, which is Ce 1.7%w.t., Sr 0.4%w.t. and Ca 0.4%w.t.. Fluidity experiments of ZM2 magnesium alloy are carried out using single spiral metal mold to verify the affection of the three elements on the fluidity.更多还原