Author(s): JI Jiaming, SHAO Honghong, MENG Guocui, GU Dongqing, Key Laboratory of High-end Structural Materials, School of Material Science and Engineering, Jiangsu University
Pages: 61-63+66
Year: 2014 Issue:  2
Journal: Hot Working Technology
Keyword:  high aluminum zinc-based alloy; mixed rare earth; microstructure; mechanical properties; thermal expansion coefficient;
Abstract: The novel high aluminum zinc-based alloy was prepared by changing the composition of the alloy and adding 0.05% mixed rare earth with lanthanum-rich. The microstructure, mechanical properties and thermal expansion coefficient were investigated under casting condition. The results show that the novel high aluminum zinc-based alloy has fine microstructure, higher mechanical properties and smaller thermal expansion coefficient compared with ZA27 alloy. The rare earth elements can improve the strength, hardness and thermal expansion coefficient of the material, but also improve the plasticity of the material.