Numerical and physical simulation of new SPD method combining extrusion and equal channel angular pressing for AZ31 magnesium alloy
- ISSN号:1003-6326
- 期刊名称:《中国有色金属学报:英文版》
- 时间:0
- 分类:TG146.22[金属学及工艺—金属材料;一般工业技术—材料科学与工程;金属学及工艺—金属学] TG379[金属学及工艺—金属压力加工]
- 作者机构:[1]National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing 400044, China, [2]College of Materials Science and Engineering, Chongqing University, Chongqing 400045, China, [3]College of Materials Science and Engineering, Chongqing University of Technology, Chongqing 400050, China
- 相关基金:Project(2007CB613700) supported by the National Basic Research Program of China; Project(2007BAG06B04) supported by the National Science and Technology Pillar Program during the 11th Five-Year Plan Period; Project(50725413) supported by the National Natural Science Foundation of China; Project(CSTC2009AB4008) supported by Chongqing Science and Technology Development Program China
关键词:
物理模拟, AZ31镁合金, 等通道角挤压, 模拟方法, 数值, 微观结构, 塑性变形, 仿真结果, magnesium alloy, serve plastic deformation, dynamic recrystallization, microstructures refinement
中文摘要:
一新包括起始的前面的挤出和随后的砍过程(ES ) 服务塑料变丑(SPD ) 被建议。在微观结构的谷物精炼上形成的 ES 的影响被研究。形成的 ES 的部件死被生产并且安装了到 Gleeble1500D thermo 机械的模拟器。微观结构观察在同样渗出的杆上被执行(同样收到) 并且 ES 形成了杆。从模拟结果,形成的 ES 能极其增加累积种类并且动态再结晶的体积部分。从物理建模结果,微观结构能被精制。
英文摘要:
A new serve plastic deformation(SPD) including initial forward extrusion and subsequent shearing process(ES) was proposed.The influence of the ES forming on the grain refinement of the microstructure was researched.The components of ES forming die were manufactured and installed to Gleeble1500D thermo-mechanical simulator.The microstructure observations were carried out on the as-extruded rods(as-received) and ES formed rods.From the simulation results,ES forming can increase the cumulative strain enormously and the volume fraction of dynamic recrystallization.From the physical modeling results,the microstructures can be refined.