Quantitative Strengthening Evaluation of Mg-Zn-Y Alloys Containing Icosahedral Quasi-Crystalline Phase  

含二十面体准晶相Mg-Zn-Y合金的定量强化评价

作　　者：Wang Yingnan Meng Xiaokai Guo Junhong 王莹楠;孟晓凯;郭俊宏(内蒙古工业大学理学院,内蒙古呼和浩特010051;内蒙古工业大学航空学院,内蒙古呼和浩特010051)

机构地区：[1]College of Science,Inner Mongolia University of Technology,Hohhot 010051,China [2]College of Aeronautics,Inner Mongolia University of Technology,Hohhot 010051,China

出　　处：《稀有金属材料与工程》2025年第3期612-617,共6页Rare Metal Materials and Engineering

基　　金：National Natural Science Foundation of China(12072166);Inner Mongolia Autonomous Region Science and Technology Plan Project(2021GG0254);Supported by Key Laboratory of Infinite-Dimensional Hamiltonian System and Its Algorithm Application(Inner Mongolia Normal University),Ministry of Education(2023KFZD02);Inner Mongolia Autonomous Region Applied Mathematics Center Independent Research Key Project(ZZYJZD2022002);Inner Mongolia Autonomous Region Universities Basic Scientific Business Fee Research Project(JY20220075)。

摘　　要：Mg-4.8Zn-0.8Y,Mg-18Zn-3Y,Mg-15Zn-5Y,Mg-30Zn-5Y and Mg-42Zn-7Y(wt%)alloys containing icosahedral quasicrystalline phases were prepared using the ordinary solidification method.The impact of Mg matrix porosity on the tensile strength and hardness of the alloys was studied.The porosity of the Mg matrix was quantitatively assessed using scanning electron microscope and Image-Pro Plus 6.0 software.Tensile tests were conducted at room temperature.Results show that the maximum tensile strength of the alloy is 175.56 MPa,with a corresponding Mg matrix porosity of 76.74%.Through fitting analysis,it is determined that the maximum tensile strength is achieved when the porosity of the Mg matrix is 64.87%.The microhardness test results indicate a gradual decrease in alloy hardness with increasing the porosity of Mg matrix.This study provides an effective quantitative analysis method for enhancing the mechanical properties of magnesium alloys.采用普通凝固法制备了含二十面体准晶相的Mg-4.8Zn-0.8Y、Mg-18Zn-3Y、Mg-15Zn-5Y、Mg-30Zn-5Y和Mg-42Zn-7Y(wt%)合金,研究了Mg基体孔隙率对合金抗拉伸强度和硬度的影响,并利用扫描电镜和Image-Pro Plus 6.0软件定量分析了镁基体孔隙率。室温拉伸试验表明,合金的最大抗拉伸强度为175.56 MPa,镁基体孔隙率为76.74%。通过拟合分析发现,当镁基体孔隙率为64.87%时,合金抗拉伸强度最大。硬度测试表明,随着镁基体孔隙率的增加,合金硬度逐渐减小。本研究为提高镁合金的力学性能提供了有效的定量分析方法。

关 键 词：Mg-Zn-Y alloy Mg matrix porosity mechanical properties quantitative analysis 

分 类 号：TG146.22[一般工业技术—材料科学与工程]