材料工程Issue(4)：71-74,4.
Zn对Mg-6Al合金凝固的溶质偏析及组织的影响
Effect of Zn to Solute Segregation and Structure During Solidification of Mg-6Al Alloy
摘要
Abstract
The solid-liquid interfaces of Mg-6Al and Mg-6Al-0.5Zn alloys were obtained by rapid quenching, the solute segregation characteristic of Al in the two alloys was analyzed. The results showed that the near equilibrium distribution coefficient, the segregation rate and the most segregation ratio for Al in Mg-6Al alloys were 0.33,2.17 and 0.43,respectively. However, when Zn was added into Mg-6Al alloys, the near equilibrium distribution coefficient, the segregation rate and the most segregation ratio for Al in Mg-6Al alloys increased. The morphology of primary α-Mg phase changed from celliform dendrite to equiaxed dendrite,and the solidification structure was refined in a way.关键词
镁合金/偏析/分配系数/淬火/枝晶Key words
magnesium alloy/ segregation/ distribution coefficient / quench/ dendrite分类
矿业与冶金引用本文复制引用
吴裕,潘复生,蒋斌,肖璐..Zn对Mg-6Al合金凝固的溶质偏析及组织的影响[J].材料工程,2011,(4):71-74,4.基金项目
国家杰出青年资助项目(50725413) （50725413）
国家863项目资助(2009AA03Z507) （2009AA03Z507）
重庆市科委资助项目(2010CSTC-HDLS,2010CSTC-BJLKR,CSTC2010AA4048) （2010CSTC-HDLS,2010CSTC-BJLKR,CSTC2010AA4048）
