精炼剂中GdCl_3含量对GW103K镁合金性能的影响  

Effects of GdCl_3 Content in Refining Flux on Properties of GW103K Magnesium Alloy

作　　者：郑韫[1,2] 吴国华[1,2] 侯正全[3] 陈斌[3] 王其龙[1,2] 丁文江[1,2] 

机构地区：[1]上海交通大学轻合金精密成型国家工程研究中心,上海200240 [2]上海交通大学金属基复合材料国家重点实验室,上海200240 [3]上海航天精密机械研究所,上海201600

出　　处：《铸造》2010年第1期7-11,共5页Foundry

基　　金：国家973资助项目(2007CB613701);上海市优秀学科带头人计划(08XD14020);国家十一五科技支撑计划资助项目(2006BAE04B07-2)

摘　　要：采用自行开发的JDRJ+GdCl3精炼剂对稀土镁合金GW103K进行精炼。研究了GdCl3添加量对镁合金GW103K的Gd损耗率、除杂效果、力学性能、耐腐蚀性能、抗疲劳性能以及铸造流动性等性能的影响。结果表明,当GdCl3添加量为2.5%时,精炼效果最好,试样的综合性能最佳;而过多添加GdCl3,则会在熔体中产生熔剂夹杂,反而降低了合金的综合性能。The rare earth chloride was added into the self-developed refining flux JDRJ, which was used to refine the RE magnesium alloy GW103K. The effect of GdCl3 addition on the Gd loss rate, impurity cleaning effect, mechanical property, corrosion resistance, fatigue resistance, and.casting fluidity of magnesium alloy GW103K were investigated. The results indicate that when the addition of GdCl3 was 2.5%, the comprehensive properties of the refined samples were the best, however, when the addition of GdCl3 was excessive, the flux inclusion was produced in the alloy melt, which decreased the comprehensive properties of the RE magnesium alloy.

关 键 词：稀土镁合金 GW103K GdCl3 精炼剂 

分 类 号：TF822[冶金工程—有色金属冶金]