ZM1 magnesium alloy reinforced by carbon nanotubes using an improved casting process  

作　　者：Qiu-Hong Yuan Lin Liao Guo-Hua Zhou Zheng-Yun Liu 

机构地区：[1]Physical Science and Technology College,Yichun University,Yichun 336000,China [2]Department of Materials Processing Engineering,Nanchang University,Nanchang 330031,China

出　　处：《Rare Metals》2021年第5期1275-1283,共9页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.51761037);the Scientific Research Foundation of the Education Department of Jiangxi Province(No.GJJ170897)。

摘　　要：Melt processing is a promising process to fabricate Mg-CNTs(carbon nanotubes)composites with high performance and large dimensions.In this work,the liquidmixing technique and ball-milling processes as well as the stirring casting method were used to prepare ZM1-1.0 CNTs-L and ZM1-1.0 CNTs-B composites,respectively.The composites were studied using optical microscopy(OM),Raman spectroscopy,scanning electron microscope(SEM),transmission electron microscope(TEM)and room-temperature tensile test.The results show that the yield strength(YS),ultimate tensile strength(UTS),elongation and microhardness values of the ZM1-1.OCNTs-L composite are improved by 37.3%,29.6%,37.0%and33.3%,respectively,compared with those of ZM1 alloy.The uniform dispersion of CNTs as well as the strong interfacial bonds with the Mg matrix is the main reason for the significant improvement in mechanical properties of the as-cast composite.Liquid mixing combined with the stirring casting method is favorable to fabricate Mg-CNTs composite with high mechanical properties.

关 键 词：ZM1 alloy Carbon nanotubes(CNTs) Composites Microstructure Mechanical properties 

分 类 号：TG146.22[一般工业技术—材料科学与工程]