Hot Tearing Prediction for Magnesium Alloy Castings

摘要：

A hot tearing indicator is proposed for the computer simulation of metal casting. The computation of the hot tearing is based on accurate prediction of the solidification path and proper calculation of the thermo-physical and mechanical properties of the alloys. A Gurson type of constitutive model, which considers the nucleation and evolution of the voids in the solid, is adopted in the computation of the hot tearing indicator. The computational predictions of the hot tearing are validated by experimental measurements.

关键词： casting hot tearing back diffusion thermodynamics magnesium alloys

作者: J.Z.Zhua J.Guob

作者单位: ESI US R&D, 6851 Oak Hall Lane, Suite 119, Columbia, MD 21045, USA

会议类型: 国际会议

会议名称: The Fifth International Conference on Physical and Numerical Simulation of Materials Processing(第五届材料与热加工物理模拟及数值模拟国际会议)

会议地点: 郑州

会议语种:英文

在线出版日期: 2007-10-23（万方平台首次上网日期，不代表论文的发表时间）