The Effect of VAR Process Parameters on Beta Flecks Formation in Ti-10V-2Fe-3Al

摘要：

The sources and formation mechanisms of beta flecks in Ti-10V-2Fe-3Al alloy are understood by using SEM,EDS and chemical composition analysis technique. To minimizing their occurrence in Ti-10V-2Fe-3Al alloy, the effect of VAR process parameters on beta flecks formation in Ti-10V-2Fe-3Al is analyzed in this paper. The results show that the beta flecks appear bright and have distinct boundaries, with irregular shapes and different sizes. There are no equiaxed alpha grains in the beta flecks zone,and its grains are very bigger than that in matrix zone. The beta flecks was depleted in aluminum element and enriched in iron element,although the vanadium level appears to be similar to that of the matrix. To minimizing beta flecks,it is efficiently to adopt small melting current and bring to bear suitable magnetic stirring.

关键词： Ti-10V-2Fe-3Al alloy beta flecks VAR process segregation

作者: Zhijun Yang Hongchao Kou Fengshou Zhang Xiangyi Xue Jinshan Li Lian Zhou

作者单位: State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xian 710072 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: 601-604

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）