Effect of cerium alloying on microstructure,texture and mechanical properties of magnesium during cold-rolling process  

作　　者：Zhen Zhang Huanhuan Chen Shiju Cao Jinhua Peng Peng Guo Chang Long Shan Wang Chang Chen Yong Wu Ji'an Huang Xiaodong Du Haigen Wei 

机构地区：[1]School of Materials Science and Engineering,Hefei University of Technology,Hefei,230009,China [2]NationalLocal Joint Research Center of Non-ferrous Metal Materials and Processing Technology,Hefei,230009,China [3]Laboratory of Nonferrous Metal Material and Processing Engineering of Anhui Province,Hefei,230009,China [4]School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang,212003,China [5]Institute of Industry and Equipment Technology,Hefei University of Technology,Hefei,230009,China [6]Faculty of Materials Metallurgy and Chemistry,Jiangxi University of Science and Technology,Ganzhou,341000,China

出　　处：《Journal of Rare Earths》2024年第5期1001-1008,I0007,共9页稀土学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(51871084,51401072);the Fundamental Research Funds for the Central Universities(JZ2019HGTB0072);Science and Technology Agency of Anhui Province(202104a05020047,2022a05020032);Intelligent Manufacturing Institute of HFUT(IMICZ2019003)。

摘　　要：Hot-extrusion and cold-rolling were conducted on Mg-Ce binary alloys to explore the effect of cerium(Ce)on microstructure,texture and mechanical properties of Mg alloys.The addition of Ce results in significant grain refinement both in as-cast and hot-extruded samples.The basal texture is also weakened after extrusion and an inclined basal texture is formed with Ce addition.The strength and elongation of the Mg-Ce alloys are improved simultaneously due to such grain refinement and texture weakening effect.After cold-rolling,plenty of twins are found in the pure Mg and AZ31 plates while grains in the Mg-0.3Ce plate deform more uniformly without lamellar twin structure.Furthermore,Mg-0.3Ce alloys own strong and continuous strain hardening because Ce atoms and Mg-Ce precipitated phases serve as obstacles for dislocation slip.

关 键 词：Mg-Ce alloys Hot extrusion COLD-ROLLING Rare earths 

分 类 号：TG1[金属学及工艺—金属学]