Numerical Simulation and Shrinkage Defects Prediction of a Turbine Blade Investment Casting

J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (Supl.): 32-34.

• Research Articles • Previous Articles Next Articles

Numerical Simulation and Shrinkage Defects Prediction of a Turbine Blade Investment Casting

Jing TIAN, Xiang XUE, Yuebing ZHANG, Yalong GAO, Luzhi LIU, Qin SUN, Shiyou YUAN

School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:1900-01-01 Revised:1900-01-01 Online:2003-12-28 Published:2009-10-10
Contact: Xiang XUE

Abstract

Abstract: By adopting the solid modeling software SoldEdge and the enmeshment software SRIFCast as the pre-processing platform, a Ni based alloy turbine blade was three-dimensionally modeled and automatically enmeshed. A software code for numerical simulation of fluid flow and heat transfer was developed. The Xue criterion and Niyama criterion were used to predict the position of the shrinkage defects occurring in the solidification processes of the turbine blade. The results showed that both Xue and Niyama criteria could precisely predict the shrinkage defects in the Ni based alloy turbine blade. This indicates that numerical simulation is a significant tool in improving casting quality.

Key words:

Jing TIAN, Xiang XUE, Yuebing ZHANG, Yalong GAO, Luzhi LIU, Qin SUN, Shiyou YUAN. Numerical Simulation and Shrinkage Defects Prediction of a Turbine Blade Investment Casting[J]. J Mater Sci Technol, 2003, 19(Supl.): 32-34.

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Numerical Simulation and Shrinkage Defects Prediction of a Turbine Blade Investment Casting

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