The study on TiAl based alloy blade casting structure by bottom pouring vacuum casting

摘要：

　　In this paper,the bottom pouring vacuum suction casting is used,and the TiAl-based alloy blade with a certain flexivity,the brim thickness 1.5mm,and the blade Falcon with high 8mm,width 10mm,length 27mm was obtained.The structures of this blade are studied.The grain sizes are different from bottom to top,in bottom position,the blade leaves structure have the equiaxed,and the central part have the columnar crystals.The TiAl-based alloy structures have fully lamellar.Comparing with different position structures,the bottom position TiAl based alloy structure have the least lamellar space,is about 0.13μm; the average space of top lamellar structure is about 0.38μm; the central region of the lamellar spacing slightly larger than the bottom area.

关键词： TiAl based alloy .Suction casting Blade Structure

作者: XiCong YE WeiGuang ZHAO WenJun LIU Shuangqing Tang Zifan Fang

作者单位: College of Mechanical & Material China Three Gorges University Yichang,China

会议类型: 国际会议

会议名称: the 2012 2nd International Conference on Frontiers of Manufacturing Science and Measuring Technology (第二届制造科学与检测技术国际会议(ICFMM 2012))

会议地点: 西安

会议语种:英文

页码: 400-403

在线出版日期: 2012-06-12（万方平台首次上网日期，不代表论文的发表时间）