铸造技术2012，Vol.33Issue(5)：558-561,4.
重型燃气轮机叶片熔模铸造凝固过程数值模拟
Numerical Simulation of Solidification Process of Gas Turbine Blade in Investment Casting
摘要
Abstract
To study the defect formation law, establishing a mathematical model of solidification process of industrial gas turbine blade in investment casting, the temperature field, the evolution of mushy zone and the formation process of shrinkage and porosity in solidification process were simulated under different process. The results show that, for the original process, the shrinkage cavity or macro porosity occurs in the tenon of the blade with two gating systems, it is consistent with the experimental results. Using directional solidification process can avoid casting defects in the turbine blade.关键词
重型燃气轮机叶片/熔模铸造/数值模拟/定向凝固Key words
IGT blade/ investment casting/ numerical simulation/ directional solidification分类
金属材料引用本文复制引用
唐宁,许庆彦,柳百成..重型燃气轮机叶片熔模铸造凝固过程数值模拟[J].铸造技术,2012,33(5):558-561,4.基金项目
国家重点基础研究发展计划(973计划)资助项目(项目编号:2007CB7077004):科技重大专项资助项目(项目编号:2009ZX04006-041,2011ZX04014-052 （973计划）
