Effect of Hot Extrusion on Microstructure, Texture, and Mechanical Properties of Mg-Zn-Mn-0.5Ca Alloy
Ming Li,
Mengling Yao,
Yuhang Yang,
Gaozhan Zhao,
Yongxiang Wang,
Dayu Shu,
Shuxin Chai,
Feiyue Zhang,
Xiangsheng Xia,
Yuanyuan Wan,
Hongxia Wang
Affiliations
Ming Li
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Mengling Yao
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Yuhang Yang
Shanxi Key Laboratory of Advanced Magnesium Based Materials, School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Gaozhan Zhao
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Yongxiang Wang
Shanxi Key Laboratory of Advanced Magnesium Based Materials, School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
Dayu Shu
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Shuxin Chai
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Feiyue Zhang
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Xiangsheng Xia
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Yuanyuan Wan
Southwest Technology and Engineering Research Institute, Chongqing 400039, China
Hongxia Wang
Shanxi Key Laboratory of Advanced Magnesium Based Materials, School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
This paper investigates the microstructure, texture, and mechanical properties of the Mg-4Zn-1Mn-0.5Ca alloy subjected to hot extrusion under varying conditions of temperature (260 °C, 300 °C, 340 °C) and extrusion speed (0.01 mm/s, 0.1 mm/s, 1 mm/s). The primary objective is to determine the optimal extrusion parameters within the selected experimental range for achieving superior mechanical properties. The results indicate that, when extruded at a constant speed of 0.1 mm/s, the alloy exhibits optimal performance at 340 °C, with a yield strength of 202 MPa, ultimate tensile strength (UTS) of 306 MPa, and elongation at fracture of 18.9%. A decrease in extrusion temperature leads to an increase in yield strength but a reduction in ductility. Specifically, the UTS reaches its peak at 342 MPa at 300 °C, while it drops slightly to 329 MPa at 260 °C. The final results show that the comprehensive mechanical properties of the Mg-4Zn-1Mn-0.5Ca alloy obtained by hot extrusion treatment with an extrusion temperature of 300 °C and extrusion speed of 0.1 mm/s are the best and can effectively improve the mechanical properties of the alloy and provide a good choice for the preparation of other biodegradable magnesium alloy products.
