典型文献
Effect of La addition on semi-solid microstructure evolution of Mg-7Zn magnesium alloy
文献摘要：
Semi-solid billets of Mg-7Zn and Mg-7Zn-0.3La alloys were prepared by semi-solid isothermal heat treatment. The effects of the La element on the as-cast and semi-solid microstructures of Mg-7Zn alloy were investigated. Meanwhile, the effects of isothermal temperature and holding time on the evolution of the semi-solid microstructure of Mg-7Zn-0.3La alloy were also studied. Results indicate that the addition of a small amount of La can significantly refine the as-cast and semi-solid microstructure. During the semi-solid thermal transformation, the size and shape factor of solid particles decrease at first and then increase with the increase of isothermal temperature and holding time. The semi-solid microstructure of Mg-7Zn-0.3La alloy obtained by holding at 605 ℃for 30 min is the optimal. The average size of solid particles, shape factor, and solid fraction are 42 μm, 1.45 and 61.8％, respectively. At the same time, a comparative study on the coarsening process of particles in the semi-solid billets of Mg-7Zn and Mg-7Zn-0.3La alloys reveals that the addition of La effectively decreases the coarsening rate of solid particles and restricts the growth of solid particles.
文献关键词：
中图分类号：
作者姓名：
Zhan-yu Zhang;Xiao-feng Huang;Fan Yang;Sheng Zhang;Jiao-li Fu
作者机构：
State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals,Lanzhou University of Technology,Lanzhou 730050,China
文献出处：
引用格式：
[1]Zhan-yu Zhang;Xiao-feng Huang;Fan Yang;Sheng Zhang;Jiao-li Fu-.Effect of La addition on semi-solid microstructure evolution of Mg-7Zn magnesium alloy)[J].中国铸造,2022(05):403-410
A类：
3La
B类：
Effect,addition,semi,solid,evolution,Mg,7Zn,magnesium,Semi,billets,alloys,were,prepared,by,isothermal,heat,treatment,effects,element,cast,microstructures,investigated,Meanwhile,temperature,holding,also,studied,Results,indicate,that,small,amount,significantly,refine,During,transformation,size,shape,particles,first,then,increase,obtained,optimal,average,fraction,respectively,At,same,comparative,study,coarsening,process,reveals,effectively,decreases,rate,restricts,growth
AB值：
0.333191
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