Numerical Simulation of Solidification Structure of Cu-Sn Alloy Upward Continuous Casting

Author of the article:YANG Qingbao, WANG Lanhao, ZENG Hao, YUAN Dawei, WANG Hang, YANG Bin

Author's Workplace：Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341001, China

Key Words：Cu-Sn alloy; solidification simulation; CA-FE method; S/L interface; grain structure

Abstract：In this paper, the solidification behavior of Cu-0.3wt.%Sn alloy ingot with diameter of 8 mm during upward
continuous casting is analyzed. Based on the microscopic and macroscopic coupling, the mile method and the CA-FE
method are used to simulate the temperature field change and the grain growth evolution process respectively. The
influence law of different casting temperatures (T=1 150, 1200, 1250 ℃) and different casting speeds (v=1, 3, 5 mm/s) on
the shape of the solid/liquid interface, liquid cavity depth and grain morphology have been systematically studied during the
upward continuous casting process. The simulation results are consistent with the experimental results, and verify the
accuracy of the simulation, which provides theoretical guidance for the optimization of alloy casting process.