ZK60镁合金棒材ECAP过程有限元模拟分析  

Finite Element Simulation and Analysis of ZK60 Magnesium Alloy Bar in the ECAP Process

作　　者：于彦东[1] 逯允龙[1] 庄园[1] 初德胜[1] 李彩霞[1] 

机构地区：[1]哈尔滨理工大学材料科学与工程学院,哈尔滨150040

出　　处：《机械工程师》2014年第5期85-87,共3页Mechanical Engineer

基　　金：黑龙江省教育厅科学研究项目(12521075)

摘　　要：采用刚黏塑性有限元理论,在挤压温度为200℃、挤压速度为2 mm/s、背压强度为40 MPa时,对ZK60镁合金棒材进行四道次ECAP过程的数值模拟,观察棒材在四道次ECAP过程中金属流动情况,并分析棒材在四道次ECAP过程中应力场和温度场的分布和变化规律。The ZK60 magnesium alloy bar was conducted by numerical simulation during the four-pass equal channel angular pressing （ECAP） process through the rigid visco-plastic finite element theory at the temperature of 200℃, the extrusion of 2 mm/s and the back pressure of 40 MPa. Then the metal flow of the bar was observed, the distribution and change of the stress field and temperature field were analyzed in the four-pass ECAP process.

关 键 词：ECAP 四道次挤压 ZK60棒材 有限元分析 

分 类 号：TG376.2[金属学及工艺—金属压力加工] TG379