中国铸造2010，Vol.7Issue(3)：236-240,5.
Effect of Sb on the grain refinement and tensile properties of Mg-10Zn-5AI alloys
Effect of Sb on the grain refinement and tensile properties of Mg-10Zn-5AI alloys
摘要
Abstract
In the present research, the Sb-alloying method was adopted, and the grain refinement and tensile. properties of as-cast Mg-10Zn-5AI alloys with varying Sb addition were investigated. The results showed that with the Sb addition, a new phase (Mg3Sb2) of high melting point forms in the alloy beside the α-Mg matrix, τ-Mg32(AI, Zn)49 phase and φ-Al2Mg6Zn2 phase. With an appropriate amount of Sb addition, the morphologies of the secondary phases and the matrix are changed and the grains are refined. When Sb addition is 0.6wt.%, both ambient and high temperature tensile strengths of the alloy reach their maximum. The hardness of the alloy increases with the increasing of Sb addition. With proper addition of Sb, the tensile failure mode of the alloy changes from cleavage fracture to quasi-cleavage fracture, showing good enhancement effect.关键词
ZA105 magnesium alloy/microstructure/tensile properties/Mg3Sb2Key words
ZA105 magnesium alloy/microstructure/tensile properties/Mg3Sb2分类
矿业与冶金引用本文复制引用
Zhang Zhaoguang,Zhang Jinshan,Liu Yali,Wang Xing,Zhou Cuilan..Effect of Sb on the grain refinement and tensile properties of Mg-10Zn-5AI alloys[J].中国铸造,2010,7(3):236-240,5.基金项目
The study was supported by the National Natural Science Foundation of China (NO.50571073), Natural Science Foundation of Shanxi Province (NO.2009011028-3, 20051052) and High School Student Project of Taiyuan City (07010713). （NO.50571073）
