AZ91D镁合金等通道角挤压温度场数值模拟

doi:10.11890/1006-7191-101-35

Acta Metallurgica Sinica (English Letters) ›› 2010, Vol. 23 ›› Issue (1): 35-40.DOI: 10.11890/1006-7191-101-35

AZ91D镁合金等通道角挤压温度场数值模拟

张晓华¹;罗守靖²

1. 哈尔滨工业大学材料科学与工程学院
2. 哈尔滨工业大学材料科学与工程学院435# 哈尔滨 150001

收稿日期:2009-03-10 修回日期:2009-04-02 出版日期:2010-02-25 发布日期:2010-02-09
通讯作者: 张晓华

Numerical simulation of temperature field of AZ91D magnesium alloy during equal channel angular extrusion

Xiaohua ZHANG,Yuansheng CHENG, Shoujing LUO

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:2009-03-10 Revised:2009-04-02 Online:2010-02-25 Published:2010-02-09
Contact: Xiaohua ZHANG

摘要/Abstract

摘要：

本文中，对AZ91D镁合金等通道角挤压工艺进行了模拟，分析了温度场的变化。为了获得精确的模拟参数，如AZ91D的流动应力，材料和模具之间的摩擦系数、热传导系数，设计了一系列的实验来测定它们，。模拟结果与实验结果吻合良好。对温度场及其影响因素从细节上进行了讨论。此外，还分析了挤压力的变化。

关键词: 数值模拟, 温度场, 等通道角挤压, AZ91D；镁合金

Abstract:

The temperature field of AZ91D magnesium alloy extruded by equal channel angular extrusion (ECAE) has been simulated using finite element method (FEM). A series of tests were designed to obtain the simulation parameters: flow stress of AZ91D, friction factor and heat transfer coefficient. The simulated temperature agrees well with the measured one. The evolution of temperature and influencing factor was discussed in details. Furthermore, the extrusion pressure of ECAE was analyzed.

Key words: Simulation, Temperature field, ECAE, AZ91D, Magnesium alloy

张晓华罗守靖. AZ91D镁合金等通道角挤压温度场数值模拟[J]. Acta Metallurgica Sinica (English Letters), 2010, 23(1): 35-40.

Xiaohua ZHANG,Yuansheng CHENG, Shoujing LUO. Numerical simulation of temperature field of AZ91D magnesium alloy during equal channel angular extrusion[J]. Acta Metallurgica Sinica (English Letters), 2010, 23(1): 35-40.

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AZ91D镁合金等通道角挤压温度场数值模拟

Numerical simulation of temperature field of AZ91D magnesium alloy during equal channel angular extrusion

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