Mechanical properties of thixomolded AZ91D magnesium alloy |
| |
| Authors: | YF Zhang YB Liu ZY Cao QQ Zhang L Zhang |
| |
| Affiliation: | 1. Key Laboratory of Automobile Materials, Jilin University, Ministry of Education, Nanling Campus of Jilin University, 5988 Renmin Street, Changchun 130022, PR China;2. Department of Materials Science and Engineering, Jilin University, Changchun 130022, PR China;1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;2. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;1. State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;2. Key Laboratory of Nonferrous Metal Alloys and Processing, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China;1. Department of Mechanical Engineering, Indian Institute of Technology – Delhi, Delhi 110016, India;2. Department of Mechanical Engineering, Kongu Engineering College, Perundurai 638052, India;1. The University of Queensland, School of Mechanical and Mining Engineering, Brisbane, Qld 4072, Australia;2. Jilin University, School of Materials Science and Engineering, Changchun, China;1. Department of Materials Engineering, Faculty of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran;2. School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran;1. College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;2. Jiangsu Electric Power Research Institute, Nanjing 210036, Jiangsu, China;3. National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China;4. Space Star Technology Co. Ltd, Chengdu 610100, Sichuan, China |
| |
| Abstract: | Tensile properties of thixomolded AZ91D alloy were studied to investigate the fracture mechanism by the microstructure and decohesion surfaces of tensile specimens which were manufactured at different processing conditions including barrel temperature, shot velocity, mold temperature and screw rotation speed. The results revealed that mechanical properties of thixomolded AZ91D mainly depended on porosity level, the size and volume fraction of primary solid phase and the size of α-Mg and β-Mg17Al12 in liquid phase. The increase in barrel temperature and shot velocity would cause the increase of both strength and ductility, while increasing mold temperature or improving screw rotation speed was coupled by the reduction of tensile properties. The tensile behaviors for different processing parameters were reasonably interpreted through the dependant factors during the deformation. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
