TA19钛合金铸锭成分偏析研究
Composition segregation research of TA19 titanium alloy ingot
陆琪 1孟庆通 1闵新华 1石磊1
作者信息
- 1. 宝武特冶钛金科技有限公司,上海 200940
- 折叠
摘要
TA19钛合金铸锭采用VAR的方式进行制造.对不同熔速和水冷流量条件下φ700 mm成品铸锭的成分偏析缺陷情况进行了研究.采用实物试验结合有限元模拟的方法,分析了熔炼过程及偏析产生的机理.结果表明熔池形状影响着铸锭的成分分布:熔速越低,熔池深度越浅,偏析深度越浅;水冷流量越大,熔池范围越窄,偏析范围越窄.
Abstract
TA19 titanium ingots are manufactured using vacuum arc remelting(VAR).The composition segregation defects in φ700 mm ingot were studied under different conditions of melting rates and water-cooling flow.The smelting process and the mechanism of segregation were analyzed through a combination of physical experiments and finite element simulation.The results indicate that the shape of the melt pool significantly influences the composition distribution of the ingot:the lower the melting velocity,the shallower the melt pool depth and the segregation depth;the higher the water-cooled flow,the narrower the melt pool range and the segregation range.
关键词
TA19钛合金铸锭/成分偏析/熔速/水冷流量Key words
TA19 titanium alloy ingot/composition segregation/melting rate/water-cooled flow引用本文复制引用
出版年
2024
NETL
NSTL
万方数据