Hot Deformation Behavior of A390 Hypereutectic Al-Si Alloy

摘要：

　　The hot deformation behavior of hypereutectic aluminium-silicon alloy was investigated by thermal simulation test at the deformation temperature of 330-480℃ and the strain rate of 0.1-10s-1 using the Gleeble-1500 thermal-mechanical simulator.The relationship of flow stress,temperature and strain rate was appropriately described by the deformation constitutive equation,and the deformation activation energy is 187.418 KJ/mol.In addition,the microstructures of these specimens were analyzed and the result showed that the inhomogeneous deformation enhances with increasing strain rate and decreasing deformation temperature,and the presence of primary silicon had a strong influence on the uneven deformation.

关键词： Hypereutectic aluminium-silicon alloy Hot deformation Constitutive equation Homogeneous deformation

作者: Xiaogang Hu Bicheng Yang Jun Xu Haijun Wang

作者单位: General Research Institute for Non-Ferrous Metals, Beijing, 100088, China

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 88-95

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）