燕山大学学报Issue(2)：111-116,6.DOI:10.3969/j.issn.1007-791X.2013.02.004
AZ31镁合金等通道转角挤压工艺优化与实验研究
Process optimization and experimental study of equal channel angular pressing for AZ31 magnesium alloy
刘婷 1徐淑波 2任国成 1景财年2
作者信息
- 1. 山东建筑大学 材料科学与工程学院，山东 济南 250101
- 2. 华中科技大学 材料成形与模具技术国家重点实验室，湖北 武汉 430074
- 折叠
摘要
Abstract
The studies of grains refinement and plasticity improvement in magnesium alloys via equal channel angular pressing (ECAP) has attracted considerable attention in recent years. In this paper, the influence of process parameters such as die geometry on severe plastic deformation was analyzed by the finite element numerical simulation. The impact of mold geometry on the extru-sion specimen stress distribution was studied. In order to achieve the grain refinement imposed by repeated extrusion, a channel angular temperature extrusion process was designed by modifying the prestressed mold. The results provide a reference for severe plastic deformation of magnesium alloys.关键词
等通道转角挤压/超细晶粒材料/有限元模拟/预应力模具Key words
equal channel angular pressing/ultra-fine grain materials/finite element simulation/prestressed mold分类
矿业与冶金引用本文复制引用
刘婷,徐淑波,任国成,景财年..AZ31镁合金等通道转角挤压工艺优化与实验研究[J].燕山大学学报,2013,(2):111-116,6.
