Formability of AA 2219-O sheet under quasi-static,electromagnetic dynamic,and mechanical dynamic tensile loadings

作     者：Hongliang Su Liang Huang Jianjun Li Wang Xiao Hui Zhu Fei Feng Hongwei Li Siliang Yan Hongliang Su;Liang Huang;Jianjun Li;Wang Xiao;Hui Zhu;Fei Feng;Hongwei Li;Siliang Yan

作者机构：State Key Laboratory of Materials Processing and Die&Mould TechnologySchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Solidification ProcessingSchool of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072China School of Materials Science and EngineeringHefei University of TechnologyHefei 230009China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第70卷第11期

页      面：125-135页

核心收录：

学科分类：0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51575206 and 51705169) the Innovation Funds for Aerospace Science and Technology from China Aerospace Science and Technology Corporation(No.CASC150704) the Science Fund of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body(No.31615006) the Fundamental Research Funds for the Central University(No.2016YXZD055) 

主　　题：Formability Aluminum alloy sheet Quasi-static Electromagnetic dynamic Mechanical dynamic Tensile loading 

摘      要：The mechanism by which electromagnetic forming(EMF)enhances the formability of metals is unclear owing to the coupling effect of multi-physics *** the present work,the associated formability improvement mechanisms were qualitatively categorized and *** was realized by comparing the formability of fully annealed 2219 aluminum alloy(AA 2219-O)sheet under quasi-static(QS),electromagnetic dynamic(EM),and mechanical dynamic(MD)tensile *** was found that the forming limit of AA 2219-O sheet under EM tensile loading was significantly(45.4%)higher than that under QS tensile loading,and was marginally(3.7%–4.3%)higher than that under MD tensile *** addition,the forming limit of AA 2219-O sheet demonstrated a negative dependency on the strain rate within the range of the dynamic tensile tests *** deformation conditions common to EM and MD tensile loadings were responsible for the significant formability improvement compared with QS tensile *** particular,the inertial effect was *** different deformation conditions that distinguish EM tensile loading from MD tensile loading resulted in the marginal improvement in *** was caused by the absence of a sustaining contact force at the later deformation stage and the lower strain *** body force exerted little influence on the formability improvement,and the thermal effect under the two dynamic tensile loadings was negligible.