The Effect of Hot Top Process on Large Diameter Ti6A14V Top Composition

摘要：

Ti6Al4V alloy is widely used in aerospace,but the change of its thermal equilibrium condition at the end of melting,reduction of cooling capacity and solidification rate lead to he segregation of the main composition,especially Al. Under the industrial producing condition,according to the solidification and segregation theory, this paper studied the distribution rule of main composition especially Al in the top of Φ720mm Ti6A14V-in-got.and improved the hot top Process. The results showed that the homogeneity of Ti6Al4Vingot top composition could be improved by controlling the coil current size,cycle and low current time in the hot top Process.

关键词： Large diameter pure Ti6Al4V-ingot VAR coil current homogeneity

作者: Hailong XU Baoquan FU Wenzhong LUO Yi FENG Jianchao DU Jie XU

作者单位: Western Superconducting Technologies Co.,Ltd,Xian 710018,China

会议类型: 国际会议

会议名称: The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)

会议地点: 北京

会议语种:英文

页码: 373-375

在线出版日期: 2011-06-19（万方平台首次上网日期，不代表论文的发表时间）