Feasibility of integrated seed making and directional solidification of TiAl alloy using cold crucible  

作　　者：张成军 傅恒志 徐达鸣 郭景杰 毕维生 苏彦庆 

机构地区：[1]School of Materials Science and Engineering,Harbin Institute of Technology [2]College of Materials Science and Engineering,Jiamusi University

出　　处：《中国有色金属学会会刊：英文版》2009年第2期330-334,共5页Transactions of Nonferrous Metals Society of China

基　　金：Project(50395102) supported by the National Natural Science Foundation of China

摘　　要：A new seed making method with cold crucible by power off technique was proposed. The cold crucible quenched seed with columnar structure has a similar cross-section shape as that of the cold crucible,and can be directly used for the directional solidification processes. The proposed method can significantly simplify the seeded directional solidification process and avoid the contamination from the seed machining.A new seed making method with cold crucible by power off technique was proposed. The cold crucible quenched seed with columnar structure has a similar cross-section shape as that of the cold crucible, and can be directly used for the directional solidification processes. The proposed method can significantly simplify the seeded directional solidification process and avoid the contamination from the seed machining.

关 键 词：种子加工 冷坩埚 TIAL合金 定向凝固 决策 凝固过程 横截面形状 柱状结构 

分 类 号：TG146.23[一般工业技术—材料科学与工程]