Study the Influences of Cooling Rate on Al-Si Binary Alloy Solidification

摘要：

Cooling rate has a direct impact on final solidification microstructure and solute microsegregation. In this paper, the influence of cooling rate and initial liquid temperature on solute diffusing coefficient, solute partition coefficient, liquidus slope and solute diffusing layer were investigated. And the results show that, as the cooling rate increases, the change rate of solute diffusing coefficient increases, the solute partition coefficient approaches to 1, liquidus slope approaches to a certAln value, and the liquid solute diffusing layer decreases. As the initial liquid temperature increases, change rate of solute diffusing coefficient increases, furthermore, solute partition coefficient increases more slowly than that at low initial liquid temperature; and Liquidus slope drops more slowly than that of low initial liquid temperature.

关键词： solidification computer simulation metal and alloy

作者: Li Qiang Wang Siqian Xie Shuisheng Huang Guojie Wang Hao

作者单位: State key Laboratory for Fabrication and Processing of Non-ferrous Metals, Beijing General　Research School of Material Science and Engineering, Shenyang University of Technology ,Shenyang 110178 ,Chin State key Laboratory for Fabrication and Processing of Non-ferrous Metals, Beijing General　Research Faculty of Engineering and Surveying, University of Southern Queensland, West Street, Toowoomba, Que

会议类型: 国际会议

会议名称: 69th World Foundry Congress(第69届世界铸造会议 WFC 2010)

会议地点: 杭州

会议语种:英文

页码: 828-832

在线出版日期: 2010-10-16（万方平台首次上网日期，不代表论文的发表时间）