合金元素对ZnAl4压铸锌合金组织和力学性能的影响  

Effect of alloying elements on the microstructure and mechanical properties of ZnAl4 die-casting zinc alloy

作　　者：梁寅[1] 吴健[1] 薛涛[2] 古文全[1] 于云峰[1] 郭光平[1] LIANG Yin;WU Jian;XUE Tao;GU Wenquan;YU Yunfen;GUO Guangping(Guizhou Institute of Metallurgy and Chemical Engineering,Guiyang 550002,China;Guizhou Academy of Sciences,Guiyang 550001,China)

机构地区：[1]贵州省冶金化工研究所,贵州贵阳550002 [2]贵州科学院,贵州贵阳550001

出　　处：《贵州科学》2021年第3期87-90,共4页Guizhou Science

基　　金：贵州科学院科技项目(黔科院J合字〔2018〕01号)。

摘　　要：通过合金熔炼、压铸试样制备,微观分析及力学性能等方法,研究铝、镁、镧元素对ZnAl4压铸锌合金显微组织及力学性能的影响。结果表明:铝、镁元素对锌合金铸锭显微组织的影响在于β相形貌及共晶组织区域的变化,不同实验合金压铸试样的组织特性与铸锭组织有关,通过对原始铸锭组织进行控制,可以进一步影响压铸制件的各项性能,实验合金中,添加0.06%~0.12%稀土镧对提高ZnAl4合金综合力学性能较为有效。Through alloy smelting,die-casting sample preparation,microscopic analysis and mechanical property analysis,we studied the effect of aluminum,magnesium,and lanthanum on the microstructure and mechanical properties of ZnAl4 die-casting zinc alloy.The results showed that:aluminum and magnesium would affect the β-phase morphology and the eutectic structure of zinc alloy,thus affecting its microstructure.The microstructure characteristics of different die-casting samples were related to the ingot structure.By controlling the original ingot structure,the properties of the die-casting parts could be affected.In the experiments,adding 0.06%to 0.12%rare earth lanthanum could effectively improve the comprehensive mechanical properties of ZnAl4 alloy.

关 键 词：ZZnAl4合金 合金元素 显微组织 力学性能 

分 类 号：TG146.45[一般工业技术—材料科学与工程]