Hunan Provincial Key Defense Laboratory of High Temperature Wear-resisting Materials and Preparation Technology, Hunan University of Science and Technology, Xiangtan, Hunan, China
语种:
中文
关键词:
镁合金;正挤压-扭转剪切变形;微观组织;热稳定性
关键词(英文):
Forward extrusion and torsional deformation;Magnesium alloy;Microstructure;Thermal stability
Microstructure thermal stability analysis was carried out on AZ31 magnesium alloy billet which was deformed by forward extrusion torsional deformation (FETD), and then applied annealing process at a range of temperature (150-500 ℃). The influence of different annealing temperature on the microstructure thermal stability and grain growth activation energy of different temperature range was studied and calculated, respectively. The results show that the average grain size increases with the increase of annealing temperature, the maximum grain si...