Influence of erbium addition on microstructure and performances of AlSi10Mg alloy prepared by selective laser melting  

作　　者：Bin Chen Fuzhu Wang Shiming Ren Peng Xia Zhipeng Wang Jianfei Hao Zhiping Chen Runxia Li Hongxiang Jiang 

机构地区：[1]Research Institute of Interdisciplinary Science&School of Materials Science and Engineering,Dongguan University of Technology,Dongguan,523808 China [2]College of Materials Science and Engineering,Shenzhen University,Shenzhen,518060,China [3]Shi-Changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang,1i0016,China [4]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang,110016,China

出　　处：《Journal of Rare Earths》2024年第10期1988-1994,共7页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(51974092,U21A2043);Guangdong Basic and Applied Basic Research Foundation(2020A1515110136,2020B1515120065,2022B1515120066);Dongguan Science and Technology Special Agent Project(20221800500212)。

摘　　要：The effect of rare earth addition on the microstructure and mechanical performances of as-cast and wrought Al alloys has been attracting increasing attention recently.Rare earth addition has great potential in modifying the structure and improving the properties of materials.However,there are currently few reports about the effect of rare earth addition on the microstructure and performances of Al alloys prepared via selective laser melting.Here,AlSi10Mg alloys were manufactured using selective laser melting,and the effect of Er addition was investigated.The results indicate that Er addition leads toα-Al refinement and modifies the minority Si phase.The formation of the Al_(3)Er phase induced by Er addition enhances the stren gth of the material.Modification of the Si phase also increases ductility.This strategy can help improve the mechanical performance of alum inum alloys prepared via selective laser melting.

关 键 词：Aluminum alloy Selective laser melting Rare earths Er MICROSTRUCTURE Tensile performance 

分 类 号：TG146.21[一般工业技术—材料科学与工程] TG665[金属学及工艺—金属材料]