张丁非,胡红军,潘复生,杨明波

• 1:重庆大学材料科学与工程学院
• 2:重庆大学国家镁合金材料工程技术研究中心
• 3:重庆理工大学材料科学与工程学院

摘要(Abstract)：

为了研究铸轧工艺参数对AZ31镁合金薄板快速铸轧过程温度场和热应力场的影响,基于铸轧区板坯的对称性建立了纵截面1/2的二维几何模型;选择了基于热弹塑性增量理论的热应力控制方程;采用大型通用有限元分析软件ANSYS对镁合金快速铸轧过程中的铸坯温度场和热-应力场进行了仿真分析,并就不同工艺参数(浇注温度、接触界面换热系数、铸轧速度)对铸坯温度和应力的分布及其相变区的影响进行了研究。仿真结果增强了对镁合金快速铸轧过程相变区温度变化和热裂产生机制的理解,为快速铸轧工艺参数的优化提供了依据。

关键词(KeyWords)： 镁合金;铸轧;ANSYS软件;温度场;热应力

Abstract:

Keywords:

基金项目(Foundation): 国家“973”重大基础研究项目(2007CB613700);; 国家“十一五”科技支撑计划重点项目(2007BAG06B04);; 国家杰出青年科学基金(50725413);; 镁合金连铸坯凝固偏析的数学模型及模拟技术研究(CST,2007bb4413)

作者(Author): 张丁非,胡红军,潘复生,杨明波

DOI: 10.13289/j.issn.1009-6264.2010.03.023

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